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1.
Knorn, Florian.
Topics in Cooperative Control.
Degree: 2011, RIAN
URL: http://eprints.maynoothuniversity.ie/2776/
► The main themes of this thesis are networked dynamic systems and related cooperative control problems. We shall contribute a number of technical results to the…
(more)
▼ The main themes of this thesis are networked dynamic systems and related cooperative
control problems. We shall contribute a number of technical results to the stability theory
of switched positive systems, and present a new cooperative control paradigm that leads to
several cooperative control schemes which allow multi-agent systems to achieve a common
goal while, at the same time, satisfying certain local constraints. In this context, we also
discuss a number of practical applications for our results.
On a very abstract level, we first investigate the stability of an unforced dynamic system
or network that switches between different configurations. Next, a control input is included
to regulate the aggregate behaviour of the network. Lastly, looking at a particular instance
of this problem setting, an estimation component is added to the mix.
To be more specific, we first derive a number of necessary and sufficient, easily verifiable
conditions for the existence of common co-positive linear Lyapunov functions for switched
positive linear systems. This is particularly useful given the classic result that, roughly,
existence of such functions is sufficient for exponential stability of the switched system
under arbitrary switching. Such switched systems may represent a networked dynamic
system that switches between different configurations.
Next, we develop several cooperative control schemes for networked, dynamic multi-
agent systems. Several decentralised algorithms are devised that allow the network to
achieve what may be called implicit, constrained consensus: Constrained in the sense
that the aggregate behaviour of the network (assumed to be a function of the totality of its
states) should assume a prescribed value; implicit in the sense that the consensus is not
to be reached on the states directly, but on values that are a function of the states. This
can be used to assure inter-agent fairness in some sense, which makes this result relevant
to a large class of real-world problems. Initially, three algorithms will be given that work
in a variety of settings, including non-linear and uncertain settings, time-changing and
asymmetric network topologies, as well as asynchronous state updates. For these results,
the general assumption is that the aggregate behaviour of the network is made accessible to
each node so that it can be incorporated into the control algorithm.
Then, a somewhat more specific application is addressed, namely (algebraic) connec-
tivity control in wireless networks. This is a setting where the aggregate behaviour (the
network’s connectivity level, roughly an algebraic measure of how well information can
flow through the network) has to be estimated first before it can be regulated. To that end,
a fully decentralised scheme is developed that allows the connectivity level to be estimated
locally in each node. This estimate is then used to inform a decentralised scheme to adjust
the nodes’ interconnections in order to drive the network to the desired connectivity level.
Finally, three further…
Subjects/Keywords: Hamilton Institute; Cooperative Control
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Knorn, F. (2011). Topics in Cooperative Control. (Thesis). RIAN. Retrieved from http://eprints.maynoothuniversity.ie/2776/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Knorn, Florian. “Topics in Cooperative Control.” 2011. Thesis, RIAN. Accessed January 19, 2021.
http://eprints.maynoothuniversity.ie/2776/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Knorn, Florian. “Topics in Cooperative Control.” 2011. Web. 19 Jan 2021.
Vancouver:
Knorn F. Topics in Cooperative Control. [Internet] [Thesis]. RIAN; 2011. [cited 2021 Jan 19].
Available from: http://eprints.maynoothuniversity.ie/2776/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Knorn F. Topics in Cooperative Control. [Thesis]. RIAN; 2011. Available from: http://eprints.maynoothuniversity.ie/2776/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
2.
Knorn, Florian.
Topics in Cooperative Control.
Degree: 2011, RIAN
URL: http://mural.maynoothuniversity.ie/2776/
► The main themes of this thesis are networked dynamic systems and related cooperative control problems. We shall contribute a number of technical results to the…
(more)
▼ The main themes of this thesis are networked dynamic systems and related cooperative
control problems. We shall contribute a number of technical results to the stability theory
of switched positive systems, and present a new cooperative control paradigm that leads to
several cooperative control schemes which allow multi-agent systems to achieve a common
goal while, at the same time, satisfying certain local constraints. In this context, we also
discuss a number of practical applications for our results.
On a very abstract level, we first investigate the stability of an unforced dynamic system
or network that switches between different configurations. Next, a control input is included
to regulate the aggregate behaviour of the network. Lastly, looking at a particular instance
of this problem setting, an estimation component is added to the mix.
To be more specific, we first derive a number of necessary and sufficient, easily verifiable
conditions for the existence of common co-positive linear Lyapunov functions for switched
positive linear systems. This is particularly useful given the classic result that, roughly,
existence of such functions is sufficient for exponential stability of the switched system
under arbitrary switching. Such switched systems may represent a networked dynamic
system that switches between different configurations.
Next, we develop several cooperative control schemes for networked, dynamic multi-
agent systems. Several decentralised algorithms are devised that allow the network to
achieve what may be called implicit, constrained consensus: Constrained in the sense
that the aggregate behaviour of the network (assumed to be a function of the totality of its
states) should assume a prescribed value; implicit in the sense that the consensus is not
to be reached on the states directly, but on values that are a function of the states. This
can be used to assure inter-agent fairness in some sense, which makes this result relevant
to a large class of real-world problems. Initially, three algorithms will be given that work
in a variety of settings, including non-linear and uncertain settings, time-changing and
asymmetric network topologies, as well as asynchronous state updates. For these results,
the general assumption is that the aggregate behaviour of the network is made accessible to
each node so that it can be incorporated into the control algorithm.
Then, a somewhat more specific application is addressed, namely (algebraic) connec-
tivity control in wireless networks. This is a setting where the aggregate behaviour (the
network’s connectivity level, roughly an algebraic measure of how well information can
flow through the network) has to be estimated first before it can be regulated. To that end,
a fully decentralised scheme is developed that allows the connectivity level to be estimated
locally in each node. This estimate is then used to inform a decentralised scheme to adjust
the nodes’ interconnections in order to drive the network to the desired connectivity level.
Finally, three further…
Subjects/Keywords: Hamilton Institute; Cooperative Control
Record Details
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Record Details
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Knorn, F. (2011). Topics in Cooperative Control. (Thesis). RIAN. Retrieved from http://mural.maynoothuniversity.ie/2776/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Knorn, Florian. “Topics in Cooperative Control.” 2011. Thesis, RIAN. Accessed January 19, 2021.
http://mural.maynoothuniversity.ie/2776/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Knorn, Florian. “Topics in Cooperative Control.” 2011. Web. 19 Jan 2021.
Vancouver:
Knorn F. Topics in Cooperative Control. [Internet] [Thesis]. RIAN; 2011. [cited 2021 Jan 19].
Available from: http://mural.maynoothuniversity.ie/2776/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Knorn F. Topics in Cooperative Control. [Thesis]. RIAN; 2011. Available from: http://mural.maynoothuniversity.ie/2776/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Georgia Tech
3.
Volle, Kyle.
Cooperative control methods for the weapon target assignment problem.
Degree: PhD, Mechanical Engineering, 2018, Georgia Tech
URL: http://hdl.handle.net/1853/61117
► Weapon target assignment (WTA) is a combinatorial optimization problem in which a set of weapons must selectively engage a set of targets in order to…
(more)
▼ Weapon target assignment (WTA) is a combinatorial optimization problem in which a set of weapons must selectively engage a set of targets in order to minimize the expected survival value of the targets. In its distributed form, it is also an important problem in autonomous, multi-agent robotics. In this work, distributed methods are explored for a modified weapon target assignment problem in which weapons seek to achieve a specified probability of kill on each target. Three novel cost functions are proposed which, in cases with low agent-to-target ratios, induce behaviors which may be preferable to the behaviors induced by classical cost functions. The performance of these proposed cost functions is explored in simulation of both homogeneous and heterogeneous engagement scenarios using, as an example, airborne autonomous weapons. Simulation results demonstrate that the proposed cost functions achieve the specified desired behaviors in cases with low agent-to-target ratios where efficient use of weapons is particularly important. Additionally, a multi-objective version of the WTA problem is considered in which the quality of an assignment is dependent on both the total effectiveness of the weapons assigned to each target, and the relative timing of agents' arrival at their targets. Such timing constraints may be important in real-world scenarios where a mission planner wishes to enforce an element of surprise on each target. A fourth cost function is presented which couples weapon effectiveness and timing metrics into a combined cost. In cases where weapon-target closing speeds are limited to a certain range, this combined cost allows the inclusion of arrival time constraints in the assignment decision process. The performance of this new cost function is demonstrated through theoretical analysis and simulation. Results show that the proposed cost function balances the dual goals of optimizing effectiveness and arrival time considerations under closing speed limitations, and that a user-defined tuning parameter can be used to adjust the priority of the dual goals of sequenced arrival and achieving the desired probability of kill.
Advisors/Committee Members: Rogers, Jonathan (advisor), Egerstedt, Magnus (committee member), Hammond, Frank (committee member), Johnson, Eric (committee member), Brink, Kevin (committee member).
Subjects/Keywords: Weapon target assignment; Cooperative control
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Volle, K. (2018). Cooperative control methods for the weapon target assignment problem. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/61117
Chicago Manual of Style (16th Edition):
Volle, Kyle. “Cooperative control methods for the weapon target assignment problem.” 2018. Doctoral Dissertation, Georgia Tech. Accessed January 19, 2021.
http://hdl.handle.net/1853/61117.
MLA Handbook (7th Edition):
Volle, Kyle. “Cooperative control methods for the weapon target assignment problem.” 2018. Web. 19 Jan 2021.
Vancouver:
Volle K. Cooperative control methods for the weapon target assignment problem. [Internet] [Doctoral dissertation]. Georgia Tech; 2018. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/1853/61117.
Council of Science Editors:
Volle K. Cooperative control methods for the weapon target assignment problem. [Doctoral Dissertation]. Georgia Tech; 2018. Available from: http://hdl.handle.net/1853/61117

University of New South Wales
4.
Cheng, Haoyang.
Behaviour-based decentralised cooperative control for unmanned systems.
Degree: Mechanical & Manufacturing Engineering, 2013, University of New South Wales
URL: http://handle.unsw.edu.au/1959.4/53325
;
https://unsworks.unsw.edu.au/fapi/datastream/unsworks:12020/SOURCE02?view=true
► The study of swarm intelligence has provided researchers with powerful tools to apply biological inspired problem solving techniques to the cooperative control of multi-agent systems.…
(more)
▼ The study of swarm intelligence has provided researchers with powerful tools to apply biological inspired problem solving techniques to the
cooperative control of multi-agent systems. The coordination mechanism based on interactions among the lower lever components makes the solution more flexible, robust, adaptive and scalable when compared to a centralised approach. The previous research that applied swarm methodology was limited to relative simple scenarios. The objective of this thesis is twofold: first, to explore the feasibility of using a decentralised framework to coordinate a group of agents in complex mission scenarios; and second, to identify the areas of development that can have the maximum impact on the performance of the swarm. The primary contribution of this research is the development and analysis of a behaviour-based
cooperative controller for unmanned systems. In the
cooperative moving target engagement problem, the proposed controller enables each Unmanned Aerial Vehicle (UAV) to switch between multiple behaviour states, each of which contains a set of rules. The rules
control the agent level interactions through the combination of direct interaction and indirect interaction and assign the UAVs to time-dependant
cooperative tasks. The simulation results that are presented demonstrate the applicability of the method and indicate that the performance depends on the complexity of the coupled task constraints. A predictive model was then integrated into the controller to let the agents estimate the intentions of their neighbours and choose activities which enhance the overall team utility. Additionally the same methodology is used to address the problem of repositioning a spacecraft within a swarm in order to balance the fuel consumption of the individual spacecraft. The proposed controller guides the spacecraft in the high-fuel-consumption positions to switch with those in the low-fuel consumption positions. The coordination is driven by the local environment without explicit external communication. From the simulation data, an extension of mission lifetime can be observed. This research extends the current literature on swarm intelligent systems by considering complex mission scenarios. A deeper understanding of the performance of the decentralised controllers is developed from the analysis of the results.
Advisors/Committee Members: Page, John, Mechanical & Manufacturing Engineering, Faculty of Engineering, UNSW, Olsen, John, Mechanical & Manufacturing Engineering, Faculty of Engineering, UNSW.
Subjects/Keywords: UAVs; Agent-Based; Cooperative Control
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Cheng, H. (2013). Behaviour-based decentralised cooperative control for unmanned systems. (Doctoral Dissertation). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/53325 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:12020/SOURCE02?view=true
Chicago Manual of Style (16th Edition):
Cheng, Haoyang. “Behaviour-based decentralised cooperative control for unmanned systems.” 2013. Doctoral Dissertation, University of New South Wales. Accessed January 19, 2021.
http://handle.unsw.edu.au/1959.4/53325 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:12020/SOURCE02?view=true.
MLA Handbook (7th Edition):
Cheng, Haoyang. “Behaviour-based decentralised cooperative control for unmanned systems.” 2013. Web. 19 Jan 2021.
Vancouver:
Cheng H. Behaviour-based decentralised cooperative control for unmanned systems. [Internet] [Doctoral dissertation]. University of New South Wales; 2013. [cited 2021 Jan 19].
Available from: http://handle.unsw.edu.au/1959.4/53325 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:12020/SOURCE02?view=true.
Council of Science Editors:
Cheng H. Behaviour-based decentralised cooperative control for unmanned systems. [Doctoral Dissertation]. University of New South Wales; 2013. Available from: http://handle.unsw.edu.au/1959.4/53325 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:12020/SOURCE02?view=true

Georgia Tech
5.
Lim, Yusun.
Game theoretic distributed coordination: drifting environments and constrained communications.
Degree: PhD, Electrical and Computer Engineering, 2014, Georgia Tech
URL: http://hdl.handle.net/1853/52986
► The major objective of this dissertation is extending the capabilities of game theoretic distributed control to more general settings. In particular, we are interested in…
(more)
▼ The major objective of this dissertation is extending the capabilities of game theoretic distributed
control to more general settings. In particular, we are interested in drifting environments and/or constrained communications.
The first part of the dissertation concerns slowly varying dynamics, i.e., drifting environments. A standard assumption in game theoretic learning is a stationary environment, e.g., the game is fixed. We investigate the case of slow variations and show that for sufficiently slow time variations, the limiting behavior “tracks” the stochastically stable states. Since the analysis is regarding Markov processes, the results could be applied to various game theoretic learning rules. In this research, the results were applied to log-linear learning. A mobile sensor coverage example was tested in both simulation and laboratory experiments.
The second part considers a problem of coordinating team players' actions without any communications in team-based zero-sum games. Generally, some global signalling devices are required for common randomness between players, but communications are very limited or impossible in many practical applications. Instead of learning a one-shot strategy, we let players coordinate a periodic sequence of deterministic actions and put an assumption on opponent's rationality. Since team players' action sequences are periodic and deterministic, common randomness is no longer required to coordinate players. It is proved that if a length of a periodic action sequence is long enough, then opponents with limited rationality cannot recognize its pattern. Because the opponents cannot recognize that the players are playing deterministic actions, the players' behavior looks like a correlated and randomized joint strategy with empirical distribution of their action sequences. Consequently players can coordinate their action sequences without any communications or global signals, and the resulting action sequences have correlated behavior.
Moreover, the notion of micro-players are introduced for efficient learning of long action sequences. Micro-player matching approach provides a new framework that converts the original team-based zero-sum game to a game between micro-players. By introducing a de Bruijn sequence to micro-player matching, we successfully separate the level of opponent's rationality and the size of the game of micro-players. The simulation results are shown to demonstrate the performance of micro-player matching methods.
Lastly, the results of the previous two topics are combined by considering a problem of coordinating actions without communications in drifting environments. More specifically, it is assumed that the opponent player in the team-based zero-sum games tries to adjust its strategy in the set of bounded recall strategies. Then the time-varying opponent's strategy can be considered as a dynamic environment parameter in a coordination game between the team players. Additionally, we develop a human testbed program for further study regarding a human as an…
Advisors/Committee Members: Shamma, Jeff S. (advisor), Wardi, Yorai (committee member), Fekri, Faramarz (committee member), Feron, Eric (committee member), Howard, Ayanna M. (committee member), Bloch, Matthieu R. (committee member).
Subjects/Keywords: Game theoretic learning; Cooperative control; Distributed control
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Lim, Y. (2014). Game theoretic distributed coordination: drifting environments and constrained communications. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/52986
Chicago Manual of Style (16th Edition):
Lim, Yusun. “Game theoretic distributed coordination: drifting environments and constrained communications.” 2014. Doctoral Dissertation, Georgia Tech. Accessed January 19, 2021.
http://hdl.handle.net/1853/52986.
MLA Handbook (7th Edition):
Lim, Yusun. “Game theoretic distributed coordination: drifting environments and constrained communications.” 2014. Web. 19 Jan 2021.
Vancouver:
Lim Y. Game theoretic distributed coordination: drifting environments and constrained communications. [Internet] [Doctoral dissertation]. Georgia Tech; 2014. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/1853/52986.
Council of Science Editors:
Lim Y. Game theoretic distributed coordination: drifting environments and constrained communications. [Doctoral Dissertation]. Georgia Tech; 2014. Available from: http://hdl.handle.net/1853/52986

Texas A&M University
6.
Bibeka, Apoorba.
Evaluation of CACC Vehicles Clustering on Freeway Performance.
Degree: MS, Civil Engineering, 2016, Texas A&M University
URL: http://hdl.handle.net/1969.1/157937
► Vehicle clustering strategy can harness the full potential of cooperative adaptive cruise control (CACC). Vehicle clustering involves finding nearby CACC equipped vehicles and forming a…
(more)
▼ Vehicle clustering strategy can harness the full potential of
cooperative adaptive cruise
control (CACC). Vehicle clustering involves finding nearby CACC equipped vehicles and forming a close spaced platoon with them if certain criteria are met. The aim of this research is to come up with a vehicle clustering strategy and evaluate the impact of this strategy on freeway performance measures such as throughput and emissions. VISSIM is used to simulate CACC equipped vehicles. Only CACC equipped trucks were modelled as one of the main focus of this research was to evaluate emission benefits of CACC system and emission benefits of platooning are more for vehicles with large frontal area. VISSIM’s external driver model application programming interface (API) is used to code the driver model and vehicle clustering strategy for CACC equipped vehicles. The author developed lane change logics and platooning logics for CACC equipped vehicles. VISSIM external driver model API calculated and sent the values of
control related parameters such as acceleration to VISSIM at each time step and for all the CACC equipped vehicles in the network. The author evaluated the impact of volume, market penetration rate of CACC, wireless communication, lane restriction policy and desired gap for vehicles in platoon on freeway performance. A regression model was fitted to predict the percent reduction in CO2 based on factors such percent of time spent as a follower in platoon, desired gap and lane restriction policy.
The study showed that a dedicated lane for CACC equipped vehicles increases the throughput. In addition, there is a reduction in emissions as compared to the case when vehicles are free to choose a lane. Also, a higher market penetration rate improves emission benefits. It was also seen that good communication between CACC equipped vehicles increases average speed.
Advisors/Committee Members: Zhang, Yunlong (advisor), Kianfar, Kiavash (committee member), Talebpour, Alireza (committee member).
Subjects/Keywords: Cooperative Adaptive Cruise Control; Vehicle Clustering Strategy
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bibeka, A. (2016). Evaluation of CACC Vehicles Clustering on Freeway Performance. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/157937
Chicago Manual of Style (16th Edition):
Bibeka, Apoorba. “Evaluation of CACC Vehicles Clustering on Freeway Performance.” 2016. Masters Thesis, Texas A&M University. Accessed January 19, 2021.
http://hdl.handle.net/1969.1/157937.
MLA Handbook (7th Edition):
Bibeka, Apoorba. “Evaluation of CACC Vehicles Clustering on Freeway Performance.” 2016. Web. 19 Jan 2021.
Vancouver:
Bibeka A. Evaluation of CACC Vehicles Clustering on Freeway Performance. [Internet] [Masters thesis]. Texas A&M University; 2016. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/1969.1/157937.
Council of Science Editors:
Bibeka A. Evaluation of CACC Vehicles Clustering on Freeway Performance. [Masters Thesis]. Texas A&M University; 2016. Available from: http://hdl.handle.net/1969.1/157937

University of Leicester
7.
Deshpande, Paresh Ravindra.
Performance based coordination control of multi-agent systems subject to time delays.
Degree: PhD, 2013, University of Leicester
URL: https://figshare.com/articles/Performance_based_coordination_control_of_multi-agent_systems_subject_to_time_delays/10149467
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.568188
► This thesis considers the design of distributed state and output feedback control algorithms for linear multi-agent systems with performance guarantees in the presence of delays.…
(more)
▼ This thesis considers the design of distributed state and output feedback control algorithms for linear multi-agent systems with performance guarantees in the presence of delays. The multi-agent systems considered are assumed to exchange relative information over an information network. As a first contribution, a novel distributed state feedback control design method with a sub-optimal LQR performance is developed for a network of multiple agents. For the control design process, it is assumed that the exchange of relative information is instantaneous. A stability analysis of the proposed control law is performed by incorporating delays in relative information to ascertain the maximum possible delay that can be accommodated by the communication network. Subsequently, the assumption of the exchange of instantaneous relative information in the control design process is relaxed and the relative information is assumed to be delayed. The system is then represented as a time-delay system. Distributed state feedback control synthesis methods are then developed for the system with a certain level of LQR performance. In the above contributions, the time delay analysis and the development of delay based control methods, it is implicitly assumed that delays are detrimental to achieving cooperative tasks for a multi-agent system. Subsequently, positive effects of delays in communication of relative information are explored. For this a network of vehicles described by double integrator dynamics, which cannot be stabilized by static output feedback without delays, is considered. A novel control design method to achieve exponential stabilization of such a multi-agent system by static output feedback using delayed relative information is developed. Conclusions are drawn from the results of the research presented in this thesis and a few directions for future work are identified.
Subjects/Keywords: 629.8; Cooperative control; Time delayed systems
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Deshpande, P. R. (2013). Performance based coordination control of multi-agent systems subject to time delays. (Doctoral Dissertation). University of Leicester. Retrieved from https://figshare.com/articles/Performance_based_coordination_control_of_multi-agent_systems_subject_to_time_delays/10149467 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.568188
Chicago Manual of Style (16th Edition):
Deshpande, Paresh Ravindra. “Performance based coordination control of multi-agent systems subject to time delays.” 2013. Doctoral Dissertation, University of Leicester. Accessed January 19, 2021.
https://figshare.com/articles/Performance_based_coordination_control_of_multi-agent_systems_subject_to_time_delays/10149467 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.568188.
MLA Handbook (7th Edition):
Deshpande, Paresh Ravindra. “Performance based coordination control of multi-agent systems subject to time delays.” 2013. Web. 19 Jan 2021.
Vancouver:
Deshpande PR. Performance based coordination control of multi-agent systems subject to time delays. [Internet] [Doctoral dissertation]. University of Leicester; 2013. [cited 2021 Jan 19].
Available from: https://figshare.com/articles/Performance_based_coordination_control_of_multi-agent_systems_subject_to_time_delays/10149467 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.568188.
Council of Science Editors:
Deshpande PR. Performance based coordination control of multi-agent systems subject to time delays. [Doctoral Dissertation]. University of Leicester; 2013. Available from: https://figshare.com/articles/Performance_based_coordination_control_of_multi-agent_systems_subject_to_time_delays/10149467 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.568188

Delft University of Technology
8.
van den Bos, Pepijn (author).
Decentralized cooperative manipulation and consensus through object sensing: Applied to the aerial towing problem.
Degree: 2018, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:dab2f168-2e7f-4126-831d-50bf9c0409f6
► With the decrease in sensor and actuator costs decentralized control strategies have become increasingly attractive, aiming to use multiple simpler robots for achieving a global…
(more)
▼ With the decrease in sensor and actuator costs decentralized
control strategies have become increasingly attractive, aiming to use multiple simpler robots for achieving a global objective. The problem of reaching the global objective generally results in a consensus problem requiring communication amongst the agents. The
cooperative manipulation problem, where a payload is manipulated using multiple robots, poses an attractive alternative: By using the payload's motion as the means of communication, the agents can reach consensus without using explicit communication. The advantage being that no additional bandwidth is required as the number of participating agents increases and all to all communication is effectively achieved. Whereas previous works considered only the translation dynamics this thesis work considers the use of the full rigid body motion as a means of communication, such that the agents reach consensus on the desired wrench and the payload is stabilized at any desired configuration. As a possible application the towing of a payload by multiple UAV via cables is considered. This brings the additional challenge of underactuation from the perspective of each agent, since only forces can be used to
control the full payload's motion. The result is a decentralized nonlinear
control law for the forces applied to a payload such that consensus is reached amongst the agents, the leader's
control action is amplified and the payload is stabilized at any desired configuration. Proofs are constructed via Lyapunov arguments and the applicability of the
control design to the aerial towing problem is validated in simulation.
Advisors/Committee Members: Keviczky, Tamas (mentor), Vallery, Heike (mentor), Proskurnikov, Anton (mentor), Alonso Mora, Javier (mentor), Delft University of Technology (degree granting institution).
Subjects/Keywords: decentralized control; aerial towing; cooperative manipulation
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
van den Bos, P. (. (2018). Decentralized cooperative manipulation and consensus through object sensing: Applied to the aerial towing problem. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:dab2f168-2e7f-4126-831d-50bf9c0409f6
Chicago Manual of Style (16th Edition):
van den Bos, Pepijn (author). “Decentralized cooperative manipulation and consensus through object sensing: Applied to the aerial towing problem.” 2018. Masters Thesis, Delft University of Technology. Accessed January 19, 2021.
http://resolver.tudelft.nl/uuid:dab2f168-2e7f-4126-831d-50bf9c0409f6.
MLA Handbook (7th Edition):
van den Bos, Pepijn (author). “Decentralized cooperative manipulation and consensus through object sensing: Applied to the aerial towing problem.” 2018. Web. 19 Jan 2021.
Vancouver:
van den Bos P(. Decentralized cooperative manipulation and consensus through object sensing: Applied to the aerial towing problem. [Internet] [Masters thesis]. Delft University of Technology; 2018. [cited 2021 Jan 19].
Available from: http://resolver.tudelft.nl/uuid:dab2f168-2e7f-4126-831d-50bf9c0409f6.
Council of Science Editors:
van den Bos P(. Decentralized cooperative manipulation and consensus through object sensing: Applied to the aerial towing problem. [Masters Thesis]. Delft University of Technology; 2018. Available from: http://resolver.tudelft.nl/uuid:dab2f168-2e7f-4126-831d-50bf9c0409f6

University of New Mexico
9.
Cortez, Randy Andres.
Prioritized Sensor Detection with Communication Constraints: A Cyber-Physical Systems Approach.
Degree: Mechanical Engineering, 2011, University of New Mexico
URL: http://hdl.handle.net/1928/12074
► Currently in the literature there does not exist a framework which incorporates a heterogeneous team of agents to solve the sensor network connectivity problem. An…
(more)
▼ Currently in the literature there does not exist a framework which incorporates a heterogeneous team of agents to solve the sensor network connectivity problem. An approach that makes use of a heterogeneous team of agents has several advantages when cost, integration of capabilities, or possible large search areas need to be investigated. A heterogeneous team allows for the robots to become ``specialized'' in their abilities and therefore accomplish sub-goals more efficiently which in turn makes the overall mission more efficient. In Part I of this dissertation we address the problem of prioritized sensing of an area with a homogeneous sensor network. We derive a decentralized and collision free controller that drives the sensing agents to positions within the area that contain the highest probability of containing ``good information.'' We then apply this prioritized sensing controller to a target search scenario, where a group of cooperating UAVs must detect then track a maneuvering target within the search space. In Part II of this dissertation we relax the assumption of network connectivity within the sensor network and introduce mobile communication relays to the network. This addition converts the homogeneous sensor network to a heterogeneous one. Based on the communication geometry of both sensing and communication relay agents we derive communication constraints within the network that guarantee network connectivity. We then define a heterogeneous proximity graph that encodes the communication links that exist within the heterogeneous network. By specifying particular edge weights in the proximity graph, we provide a technique for biasing particular connections within the heterogenous sensor network. Through a minimal spanning tree approach, we show how to minimize communication links within the network which allows for larger feasible motion sets of the sensing agents that guarantee the network remains connected. We also provide an algorithm that allows for adding communication links to the minimal spanning tree of the heterogeneous proximity graph to create a biconnected graph that is robust to a single node failure. We then combine the prioritized search algorithm from Part I and the communication constraints from Part II to provide a decentralized prioritized sensing
control algorithm for a heterogenous sensor network that maintains network connectivity. Lastly, in Part III we describe our robotic testbed that has been built to validate our proposed algorithms. We provide hardware experiments for both homogenous and heterogeneous sensor networks.
Advisors/Committee Members: Fierro, Rafael, Lumia, Ron, Tanner, Herbert, Starr, Gregory.
Subjects/Keywords: Multi-Robot Control; Connectivity; Cooperative Robotics
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Cortez, R. A. (2011). Prioritized Sensor Detection with Communication Constraints: A Cyber-Physical Systems Approach. (Doctoral Dissertation). University of New Mexico. Retrieved from http://hdl.handle.net/1928/12074
Chicago Manual of Style (16th Edition):
Cortez, Randy Andres. “Prioritized Sensor Detection with Communication Constraints: A Cyber-Physical Systems Approach.” 2011. Doctoral Dissertation, University of New Mexico. Accessed January 19, 2021.
http://hdl.handle.net/1928/12074.
MLA Handbook (7th Edition):
Cortez, Randy Andres. “Prioritized Sensor Detection with Communication Constraints: A Cyber-Physical Systems Approach.” 2011. Web. 19 Jan 2021.
Vancouver:
Cortez RA. Prioritized Sensor Detection with Communication Constraints: A Cyber-Physical Systems Approach. [Internet] [Doctoral dissertation]. University of New Mexico; 2011. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/1928/12074.
Council of Science Editors:
Cortez RA. Prioritized Sensor Detection with Communication Constraints: A Cyber-Physical Systems Approach. [Doctoral Dissertation]. University of New Mexico; 2011. Available from: http://hdl.handle.net/1928/12074

Delft University of Technology
10.
Abou Harfouch, Youssef (author).
Adaptive strategies for platooning.
Degree: 2017, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:69cbd634-f2af-4856-9fca-8f92b56fab20
► Automated driving, one of the rapidly growing research topics in the field of smart traffic, has proved to be a recognized solution for potentially improving…
(more)
▼ Automated driving, one of the rapidly growing research topics in the field of smart traffic, has proved to be a recognized solution for potentially improving road throughput and reducing vehicles' energy consumption by grouping individual vehicles into platoons controlled by one leading vehicle. The advances in distributed inter-vehicle communication networks have stimulated a fruitful line of research in
Cooperative Adaptive Cruise
Control (CACC). In CACC, individual vehicles, grouped into platoons, must automatically adjust their own speed using on-board sensors and communication with the preceding vehicle so as to maintain a safe inter-vehicle distance. The importance of CACC lies in the fact that it enables small inter-vehicle time gaps, which leads to a major reduction of the aerodynamical drag force applied on vehicles in such a driving pattern. Consequently, vehicle emissions, which play a main role in trucks and heavy automobiles, are expected to be highly reduced. However, a crucial limitation of the state-of-the-art research in this
control scheme is that the string stability of the platoon can be proven only when the vehicles in the platoon have identical driveline dynamics and perfect engine performance (homogeneous platoon), and possibly an ideal communication channel. Thus, the objective of this MSc thesis is to address the problem of CACC for heterogeneous platoons under realistic inter-vehicle network conditions. In the first part, we propose a novel CACC strategy that overcomes the homogeneity assumption and that is able to adapt its action and achieve string stability for uncertain heterogeneous platoons under ideal inter-vehicle network conditions. In the second part, in order to handle the inevitable communication losses, we formulate an extended average dwell-time framework and design an adaptive switched
control strategy which activates an augmented CACC or an augmented Adaptive Cruise
Control strategy depending on communication reliability. Stability of the proposed
control strategies is proven analytically and simulations are conducted to validate the theoretical analysis.
Advisors/Committee Members: Baldi, Simone (mentor), Yuan, Shuai (mentor), Verhaegen, Michel (graduation committee), Alonso Mora, Javier (graduation committee), Wang, Meng (graduation committee), Delft University of Technology (degree granting institution).
Subjects/Keywords: Heterogeneous platooning; Cooperative adaptive cruise control; Adaptive control; Switched control
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Abou Harfouch, Y. (. (2017). Adaptive strategies for platooning. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:69cbd634-f2af-4856-9fca-8f92b56fab20
Chicago Manual of Style (16th Edition):
Abou Harfouch, Youssef (author). “Adaptive strategies for platooning.” 2017. Masters Thesis, Delft University of Technology. Accessed January 19, 2021.
http://resolver.tudelft.nl/uuid:69cbd634-f2af-4856-9fca-8f92b56fab20.
MLA Handbook (7th Edition):
Abou Harfouch, Youssef (author). “Adaptive strategies for platooning.” 2017. Web. 19 Jan 2021.
Vancouver:
Abou Harfouch Y(. Adaptive strategies for platooning. [Internet] [Masters thesis]. Delft University of Technology; 2017. [cited 2021 Jan 19].
Available from: http://resolver.tudelft.nl/uuid:69cbd634-f2af-4856-9fca-8f92b56fab20.
Council of Science Editors:
Abou Harfouch Y(. Adaptive strategies for platooning. [Masters Thesis]. Delft University of Technology; 2017. Available from: http://resolver.tudelft.nl/uuid:69cbd634-f2af-4856-9fca-8f92b56fab20

Delft University of Technology
11.
de Groot, Oscar (author).
Cooperative r-Passivity-Based Control: Development of a Multi-Agent Passivity-Based Control Scheme with Robustness towards Network Effects.
Degree: 2019, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:ecb31ded-9b7f-43bf-b726-ce44e8524c57
► In this work we consider the problem of cooperative formation control between heterogeneous agents when time-varying delays and/or packet loss are present. Specifically, we introduce…
(more)
▼ In this work we consider the problem of cooperative formation control between heterogeneous agents when time-varying delays and/or packet loss are present. Specifically, we introduce a control law for nonlinear fully actuated mechanical agents that separates the cooperative coordinates from the local coordinates, which removes the necessity for scenario-dependent tuning. The cooperative outputs encode task-space coordinates and velocities which are transformed into wave-variables to overcome the destabilising effects of the communication network. The cooperative agent couplings incorporate task-space constraints such as collision- and singularity avoidance, while ensuring performance in arbitrary workspaces. The proposed approach improves robustness of existing methods against network effects, and allows to expand their application scope by the inclusion of constraints and nonlinear dynamics. In addition, our approach is scalable by design, and simplifies the tuning task considerably. We demonstrate the efficacy of the proposed approach experimentally.
Mechanical Engineering | Systems and Control
Advisors/Committee Members: Keviczky, Tamas (mentor), Delft University of Technology (degree granting institution).
Subjects/Keywords: Formation Control; Collision Avoidance; Passivity-Based Control; Cooperative Control; Scattering Transformation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
de Groot, O. (. (2019). Cooperative r-Passivity-Based Control: Development of a Multi-Agent Passivity-Based Control Scheme with Robustness towards Network Effects. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:ecb31ded-9b7f-43bf-b726-ce44e8524c57
Chicago Manual of Style (16th Edition):
de Groot, Oscar (author). “Cooperative r-Passivity-Based Control: Development of a Multi-Agent Passivity-Based Control Scheme with Robustness towards Network Effects.” 2019. Masters Thesis, Delft University of Technology. Accessed January 19, 2021.
http://resolver.tudelft.nl/uuid:ecb31ded-9b7f-43bf-b726-ce44e8524c57.
MLA Handbook (7th Edition):
de Groot, Oscar (author). “Cooperative r-Passivity-Based Control: Development of a Multi-Agent Passivity-Based Control Scheme with Robustness towards Network Effects.” 2019. Web. 19 Jan 2021.
Vancouver:
de Groot O(. Cooperative r-Passivity-Based Control: Development of a Multi-Agent Passivity-Based Control Scheme with Robustness towards Network Effects. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Jan 19].
Available from: http://resolver.tudelft.nl/uuid:ecb31ded-9b7f-43bf-b726-ce44e8524c57.
Council of Science Editors:
de Groot O(. Cooperative r-Passivity-Based Control: Development of a Multi-Agent Passivity-Based Control Scheme with Robustness towards Network Effects. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:ecb31ded-9b7f-43bf-b726-ce44e8524c57

University of Arizona
12.
Yaylali, David.
Fractional Control of Multivehicle Systems and Relative Orbits
.
Degree: 2018, University of Arizona
URL: http://hdl.handle.net/10150/631415
► Cooperative control protocols can be formulated for systems comprising multiple independent agents which can share information. In this work I will consider the cooperative control…
(more)
▼ Cooperative control protocols can be formulated for systems comprising multiple independent agents which can share information. In this work I will consider the
cooperative control problem for multi-agent systems whose agents obey second-order Newtonian dynamics. Specifically, I will explore consensus and
cooperative control laws for arrangements of both free point-mass bodies and point-mass spacecraft in orbit about a celestial body. In the latter case, the linearized equations of motion for two or more bodies in orbit will be used, allowing us to frame
cooperative control laws in the standard formalism of algebraic graph theory. One of the primary novelties explored in this work is the usage of non-integer order integral and derivative operators in the feedback controllers for
cooperative multiagent systems. These fractional operators provide additional degrees of freedom in controller design, and therefore afford more freedom in shaping the controlled system’s trajectories. Among the main results presented in this work, we prove the stability of certain fractional consensus controllers and show that these controllers can outperform standard integer-order controllers in terms of some important performance measures.
Advisors/Committee Members: Butcher, Eric A (advisor), Rosengren, Aaron (committeemember), Reverdy, Paul (committeemember).
Subjects/Keywords: Consensus Control;
Cooperative Control;
Fractional Control;
Multivehicle Consensis;
Relative Orbits and Control;
Second-Order Consensus
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Yaylali, D. (2018). Fractional Control of Multivehicle Systems and Relative Orbits
. (Masters Thesis). University of Arizona. Retrieved from http://hdl.handle.net/10150/631415
Chicago Manual of Style (16th Edition):
Yaylali, David. “Fractional Control of Multivehicle Systems and Relative Orbits
.” 2018. Masters Thesis, University of Arizona. Accessed January 19, 2021.
http://hdl.handle.net/10150/631415.
MLA Handbook (7th Edition):
Yaylali, David. “Fractional Control of Multivehicle Systems and Relative Orbits
.” 2018. Web. 19 Jan 2021.
Vancouver:
Yaylali D. Fractional Control of Multivehicle Systems and Relative Orbits
. [Internet] [Masters thesis]. University of Arizona; 2018. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/10150/631415.
Council of Science Editors:
Yaylali D. Fractional Control of Multivehicle Systems and Relative Orbits
. [Masters Thesis]. University of Arizona; 2018. Available from: http://hdl.handle.net/10150/631415

RMIT University
13.
Ilaya, O.
Cooperative control for multi-vehicle swarms.
Degree: 2009, RMIT University
URL: http://researchbank.rmit.edu.au/view/rmit:6702
► The cooperative control of large-scale multi-agent systems has gained a significant interest in recent years from the robotics and control communities for multi-vehicle control. One…
(more)
▼ The cooperative control of large-scale multi-agent systems has gained a significant interest in recent years from the robotics and control communities for multi-vehicle control. One motivator for the growing interest is the application of spatially and temporally distributed multiple unmanned aerial vehicle (UAV) systems for distributed sensing and collaborative operations. In this research, the multi-vehicle control problem is addressed using a decentralised control system. The work aims to provide a decentralised control framework that synthesises the self-organised and coordinated behaviour of natural swarming systems into cooperative UAV systems. The control system design framework is generalised for application into various other multi-agent systems including cellular robotics, ad-hoc communication networks, and modular smart-structures. The approach involves identifying su itable relationships that describe the behaviour of the UAVs within the swarm and the interactions of these behaviours to produce purposeful high-level actions for system operators. A major focus concerning the research involves the development of suitable analytical tools that decomposes the general swarm behaviours to the local vehicle level. The control problem is approached using two-levels of abstraction; the supervisory level, and the local vehicle level. Geometric control techniques based on differential geometry are used at the supervisory level to reduce the control problem to a small set of permutation and size invariant abstract descriptors. The abstract descriptors provide an open-loop optimal state and control trajectory for the collective swarm and are used to describe the intentions of the vehicles. Decentralised optimal control is implemented at the local vehicle level to synthesise self-organised and cooperative behaviour. A deliberative control scheme is implemented at the local vehicle le vel that demonstrates autonomous, cooperative and optimal behaviour whilst the preserving precision and reliability at the local vehicle level.
Subjects/Keywords: Fields of Research; Swarms; Cooperative control; Decentralised control; UAV
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ilaya, O. (2009). Cooperative control for multi-vehicle swarms. (Thesis). RMIT University. Retrieved from http://researchbank.rmit.edu.au/view/rmit:6702
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Ilaya, O. “Cooperative control for multi-vehicle swarms.” 2009. Thesis, RMIT University. Accessed January 19, 2021.
http://researchbank.rmit.edu.au/view/rmit:6702.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ilaya, O. “Cooperative control for multi-vehicle swarms.” 2009. Web. 19 Jan 2021.
Vancouver:
Ilaya O. Cooperative control for multi-vehicle swarms. [Internet] [Thesis]. RMIT University; 2009. [cited 2021 Jan 19].
Available from: http://researchbank.rmit.edu.au/view/rmit:6702.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ilaya O. Cooperative control for multi-vehicle swarms. [Thesis]. RMIT University; 2009. Available from: http://researchbank.rmit.edu.au/view/rmit:6702
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of California – San Diego
14.
Ramirez Llanos, Eduardo Jose.
Distributed Resource Allocation and Optimization Algorithms Applied to Virus Spread Minimization.
Degree: Engineering Sciences (Aerospace Engineering), 2017, University of California – San Diego
URL: http://www.escholarship.org/uc/item/4858r5x4
► The proliferation of large-scale networks like social networks, transportation networks, or smartgrids imposes new demands and challenges on the design of learning algorithms for optimal…
(more)
▼ The proliferation of large-scale networks like social networks, transportation networks, or smartgrids imposes new demands and challenges on the design of learning algorithms for optimal resource allocation. In a typical scenario, a group of agents decides how to coordinate the use of shared resources to solve a common goal while satisfying operational and communication constraints. The challenge is how to increase the network resilience given myopic agents with access to partial information. Under these settings, there is an emergence for the design of algorithms that are scalable, robust against adversarial or unknown environments, preserve privacy, and that allow the agents to take autonomous decisions on the resource utilization.A real-world problem leading to such a scenarios arises in computer networks, epidemiology, and viral marketing, where a viral outbreak can be a threat to the security of interconnected infrastructure and the well-being of general population. The implementation of strategies to stop epidemics can be specially challenging when networks are managed by multiple operators who need to preserve the privacy and interests of their constituents.Motivated by this situation, we consider a resource allocation problem for virus spread minimization. Based on a general contagion dynamics model, we characterize the optimal solution to the problem. We pose the problem objective as the minimization of the spectral radius of the contagion-dynamics matrix subject to operational constraints. We propose four algorithms to find the solution with provable convergence guarantees under different settings. The first algorithm, inspired by the Replicator Dynamics, implements the desired resource allocation for time-varying symmetric matrices. The second algorithm, designed in continuous-time, uses local and anonymous interactions, does not require knowledge of the total resource available to agents in order to converge to the solution, is robust to agents joining or departing the network, and to sporadic changes in the network topology, computation errors, and communication faults. The third algorithm, which is a discrete version of the second one, conserves the robustness properties of the previous one. Finally, we propose a stochastic algorithm, which extends the previous algorithms to scenarios where the closed-form expression of the cost functions is unknown to the agents.
Subjects/Keywords: Engineering; Cooperative Control; Distributed optimization; Multi-agent systems; nonlinear control
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APA ·
Chicago ·
MLA ·
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CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ramirez Llanos, E. J. (2017). Distributed Resource Allocation and Optimization Algorithms Applied to Virus Spread Minimization. (Thesis). University of California – San Diego. Retrieved from http://www.escholarship.org/uc/item/4858r5x4
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Ramirez Llanos, Eduardo Jose. “Distributed Resource Allocation and Optimization Algorithms Applied to Virus Spread Minimization.” 2017. Thesis, University of California – San Diego. Accessed January 19, 2021.
http://www.escholarship.org/uc/item/4858r5x4.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ramirez Llanos, Eduardo Jose. “Distributed Resource Allocation and Optimization Algorithms Applied to Virus Spread Minimization.” 2017. Web. 19 Jan 2021.
Vancouver:
Ramirez Llanos EJ. Distributed Resource Allocation and Optimization Algorithms Applied to Virus Spread Minimization. [Internet] [Thesis]. University of California – San Diego; 2017. [cited 2021 Jan 19].
Available from: http://www.escholarship.org/uc/item/4858r5x4.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ramirez Llanos EJ. Distributed Resource Allocation and Optimization Algorithms Applied to Virus Spread Minimization. [Thesis]. University of California – San Diego; 2017. Available from: http://www.escholarship.org/uc/item/4858r5x4
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of California – Riverside
15.
Ghapani, Sheida.
Distributed Tracking Algorithms for Multi-Agent Systems to Solve the Leader-Follower Flocking of Lagrange Networks and Dynamic Average Tracking Problem of Second-Order Systems.
Degree: Electrical Engineering, 2016, University of California – Riverside
URL: http://www.escholarship.org/uc/item/2b746882
► A multi-agent system is defined as a collection of autonomous agents which are able to interact with each other or with their environments to solve…
(more)
▼ A multi-agent system is defined as a collection of autonomous agents which are able to interact with each other or with their environments to solve problems that are difficult or impossible for an individual agent. Coordination in multi-agent systems attracts significant interest in the realm of engineering. Examples of cooperative tasks include mobile sensor networks, automated parallel delivery of payloads, region following formation control and coordinated path planning. One common feature for these systems is acting the agents in a distributed manner (using only local information from their neighbors) to complete global tasks cooperatively so as to increase flexibility and robustness. In this work, two distributed tracking issues in multi-agent systems are investigated in detail: leader-follower flocking with a moving leader for Lagrange networks and distributed average tracking of physical agents.Flocking of multi-agent systems is the motion of a group of agents cohesively to maintain connectivity and avoid collisions. This dissertation proposes novel distributed tracking algorithms to solve the leader-follower flocking problem with a moving leader. The problem is investigated for networked Lagrange systems with parametric uncertainties under a proximity graph. Two cases are considered: i) the leader moves with a constant velocity, and ii) the leader moves with a varying velocity. In the first case, a distributed continuous adaptive control algorithm accounting for unknown parameters is proposed in combination with a distributed continuous estimator for each follower. In the second case, a distributed discontinuous adaptive control algorithm and estimator are proposed to track the varying leader, where only a group of followers have access to the leader. However, in the proposed algorithm the agents use the two-hope neighbors' information and need some global information to determine the control gains. Thus, the algorithm is improved in the next step to use one-hop neighbors' information and to be fully distributed with the introduction of gain adaptation laws. In all proposed algorithms, flocking is achieved as long as the connectivity and collision avoidance are ensured at the initial time and the control gains are designed properly.In the distributed average tracking problem, each agent uses local information to calculate the average of individual varying input signals, one per agent. In this dissertation, two distributed average tracking problems for physical second-order agents are investigated. First, distributed average tracking problem is studied for double-integrator agents with reduced requirement on velocity measurements and in the absence of correct position and velocity initialization. Two algorithms are introduced, where in both algorithms a distributed discontinuous control input and a filter are proposed. In the first algorithm, the requirement for either absolute or relative velocity measurements is removed. The algorithm is robust to initialization errors and can deal with a wide class of input…
Subjects/Keywords: Electrical engineering; Control; Cooperative control; Distributed systems; Estimation; Flocking; Tracking
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ghapani, S. (2016). Distributed Tracking Algorithms for Multi-Agent Systems to Solve the Leader-Follower Flocking of Lagrange Networks and Dynamic Average Tracking Problem of Second-Order Systems. (Thesis). University of California – Riverside. Retrieved from http://www.escholarship.org/uc/item/2b746882
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Ghapani, Sheida. “Distributed Tracking Algorithms for Multi-Agent Systems to Solve the Leader-Follower Flocking of Lagrange Networks and Dynamic Average Tracking Problem of Second-Order Systems.” 2016. Thesis, University of California – Riverside. Accessed January 19, 2021.
http://www.escholarship.org/uc/item/2b746882.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ghapani, Sheida. “Distributed Tracking Algorithms for Multi-Agent Systems to Solve the Leader-Follower Flocking of Lagrange Networks and Dynamic Average Tracking Problem of Second-Order Systems.” 2016. Web. 19 Jan 2021.
Vancouver:
Ghapani S. Distributed Tracking Algorithms for Multi-Agent Systems to Solve the Leader-Follower Flocking of Lagrange Networks and Dynamic Average Tracking Problem of Second-Order Systems. [Internet] [Thesis]. University of California – Riverside; 2016. [cited 2021 Jan 19].
Available from: http://www.escholarship.org/uc/item/2b746882.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ghapani S. Distributed Tracking Algorithms for Multi-Agent Systems to Solve the Leader-Follower Flocking of Lagrange Networks and Dynamic Average Tracking Problem of Second-Order Systems. [Thesis]. University of California – Riverside; 2016. Available from: http://www.escholarship.org/uc/item/2b746882
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of California – Berkeley
16.
Liu, Shih-Yuan.
Collaborative Team Evasion Against a Faster Pursuer.
Degree: Mechanical Engineering, 2014, University of California – Berkeley
URL: http://www.escholarship.org/uc/item/84c600t1
► In the past decade, the level of autonomy of unmanned vehicles has been rising rapidly from remote-controlled towards fully autonomous. Without human operators on board,…
(more)
▼ In the past decade, the level of autonomy of unmanned vehicles has been rising rapidly from remote-controlled towards fully autonomous. Without human operators on board, teams of autonomous vehicles are the best candidates for high risk applications such as search and rescue after disasters and information gathering in hostile environments. For a team of autonomous vehicles to operate effectively in these scenarios, it must be able to respond promptly to environmental hazards and/or hostile entities. In this dissertation, a collaborative team evasion framework is proposed to maximize the survival time of a team of autonomous vehicles against a faster and more agile hostile agent. The proposed framework is based on an open-loop formulation of the single-pursuer-multiple-evader pursuit-evasion game that is conservative to the evaders and provides guarantees on team survival time in the worst-case scenario. An iterative open-loop approach that repeatedly solves the open-loop problem corresponding to the most current state of the game is developed to relax the conservatism of the open-loop formulation and enhance the survival time performance. Extensions to the framework make it possible to take into account the turning rate constraints of the evaders and uncertainties in the position of the pursuer. Numerical approximations are also proposed to reduced the required computation time. Through extensive simulations, the proposed framework is shown to produce reliable strategies for the evaders that result in significantly longer team survival time than previous work in the literature.
Subjects/Keywords: Mechanical engineering; Control; Cooperative Control; Optimization; Pursuit-evasion; Team Evasion
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APA (6th Edition):
Liu, S. (2014). Collaborative Team Evasion Against a Faster Pursuer. (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/84c600t1
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Liu, Shih-Yuan. “Collaborative Team Evasion Against a Faster Pursuer.” 2014. Thesis, University of California – Berkeley. Accessed January 19, 2021.
http://www.escholarship.org/uc/item/84c600t1.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Liu, Shih-Yuan. “Collaborative Team Evasion Against a Faster Pursuer.” 2014. Web. 19 Jan 2021.
Vancouver:
Liu S. Collaborative Team Evasion Against a Faster Pursuer. [Internet] [Thesis]. University of California – Berkeley; 2014. [cited 2021 Jan 19].
Available from: http://www.escholarship.org/uc/item/84c600t1.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Liu S. Collaborative Team Evasion Against a Faster Pursuer. [Thesis]. University of California – Berkeley; 2014. Available from: http://www.escholarship.org/uc/item/84c600t1
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University
17.
Ghosh, Supratim.
Teams and games for distributed consensus.
Degree: 2013, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/18723
► The problem of synthesizing linear dynamic feedback controllers which achieve distributed fi�nite-time consensus for networks of multiple agents described by fi�xed connectivity graphs is considered.…
(more)
▼ The problem of synthesizing linear dynamic feedback controllers which achieve distributed fi�nite-time consensus for networks of multiple agents described by fi�xed connectivity graphs is considered. The techniques of teams and games are employed in synthesizing these controllers. Under the situations where the connectivity graph is known to every agent or to a central authority a priori, the network behaves as a team and the solution procedure involves posing a �finite-horizon decentralized
control problem and converting it to a static convex optimization problem via linear
quadratic team-theoretic notions. The dynamic feedback controller thus synthesized optimizes a
transient performance measure and guarantees consensus within a minimal number of steps.
Extending these results to situations where the networks are described by connectivity graphs
which are not known at the outset to any of the agents or to a central authority, the problem
of optimal distributed consensus is formulated as a decentralized linear quadratic game where
the agents minimize their own local costs by sequentially learning the network connectivity
and generating local decisions. A distributed protocol based on online optimization and linear
dynamic feedback is shown to achieve an equilibrium with respect to these local costs. For the cases of unknown undirected (bidirectional) graphs the protocol produces an optimal performance with time-optimal �finite-time consensus. The
control protocol is formed by coupling and jointly
optimizing the tasks of network learning and network
control so that the states can be steered to the desired consensus value.
Under unknown general directed graphs a similar distributed
control protocol exhibits a near-optimal fi�nite-time consensus. Several classes of directed graphs for which the controller performs optimally in space and/or in time have been identi�fied. On the other hand, counterexamples show that due to the diffi�culties inherent to dealing with general directed graphs, no
control policy is
uniformly optimal over all directed graphs.
Advisors/Committee Members: Ji Woong Lee, Dissertation Advisor/Co-Advisor, Ji Woong Lee, Committee Chair/Co-Chair, Constantino Manuel Lagoa, Committee Member, Asok Ray, Committee Member, Piotr Berman, Committee Member.
Subjects/Keywords: Cooperative Control; Game Theory; Multi-agent Consensus; Decentralized Control.
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ghosh, S. (2013). Teams and games for distributed consensus. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/18723
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Ghosh, Supratim. “Teams and games for distributed consensus.” 2013. Thesis, Penn State University. Accessed January 19, 2021.
https://submit-etda.libraries.psu.edu/catalog/18723.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ghosh, Supratim. “Teams and games for distributed consensus.” 2013. Web. 19 Jan 2021.
Vancouver:
Ghosh S. Teams and games for distributed consensus. [Internet] [Thesis]. Penn State University; 2013. [cited 2021 Jan 19].
Available from: https://submit-etda.libraries.psu.edu/catalog/18723.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ghosh S. Teams and games for distributed consensus. [Thesis]. Penn State University; 2013. Available from: https://submit-etda.libraries.psu.edu/catalog/18723
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Queens University
18.
Kamal El-Din Hafez, Ahmed.
Design and Implementation of Modern Control Algorithms for Unmanned Aerial Vehicles
.
Degree: Electrical and Computer Engineering, 2014, Queens University
URL: http://hdl.handle.net/1974/12657
► Recently, Unmanned Aerial Vehicles (UAVs) have attracted a great deal of attention in academic, civilian and military communities as prospective solutions to a wide variety…
(more)
▼ Recently, Unmanned Aerial Vehicles (UAVs) have attracted a great deal of attention in academic, civilian and military communities as prospective solutions to a wide variety of applications. The use of cooperative UAVs has received growing interest in the last decade and this provides an opportunity for new operational paradigms.
As applications of UAVs continue to grow in complexity, the trend of using multiple cooperative UAVs to perform these applications rises in order to increase the overall effectiveness and robustness.
There is a need for generating suitable control techniques that allow for the real-time implementation of control algorithms for different missions and tactics executed by a group of cooperative UAVs. In this thesis, we investigate possible control patterns and associated algorithms for controlling a group of autonomous UAVs in real-time to perform various tactics.
This research proposes new control approaches to solve the dynamic encirclement, tactic switching and formation problems for a group of cooperative UAVs in simulation and real-time. Firstly, a combination of Feedback Linearization (FL) and decentralized Linear Model Predictive Control (LMPC) is used to solve the dynamic encirclement problem. Secondly, a combination of decentralized LMPC and fuzzy logic control is used to solve the problem of tactic switching for a group of cooperative UAVs. Finally, a decentralized Learning Based Model Predictive Control (LBMPC) is used to solve the problem of formation for a group of cooperative UAVs in simulation.
We show through simulations and validate through experiments that the proposed control policies succeed to control a group of cooperative UAVs to achieve the desired requirements and control objectives for different tactics. These proposed control policies provide reliable and effective control techniques for multiple cooperative UAV systems.
Subjects/Keywords: Model Predictive Control
;
Cooperative Control
;
Unmanned Aerial Vehicles
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kamal El-Din Hafez, A. (2014). Design and Implementation of Modern Control Algorithms for Unmanned Aerial Vehicles
. (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/12657
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Kamal El-Din Hafez, Ahmed. “Design and Implementation of Modern Control Algorithms for Unmanned Aerial Vehicles
.” 2014. Thesis, Queens University. Accessed January 19, 2021.
http://hdl.handle.net/1974/12657.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kamal El-Din Hafez, Ahmed. “Design and Implementation of Modern Control Algorithms for Unmanned Aerial Vehicles
.” 2014. Web. 19 Jan 2021.
Vancouver:
Kamal El-Din Hafez A. Design and Implementation of Modern Control Algorithms for Unmanned Aerial Vehicles
. [Internet] [Thesis]. Queens University; 2014. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/1974/12657.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kamal El-Din Hafez A. Design and Implementation of Modern Control Algorithms for Unmanned Aerial Vehicles
. [Thesis]. Queens University; 2014. Available from: http://hdl.handle.net/1974/12657
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Bath
19.
Du, Zhenyu.
Position and force control of cooperating robots using inverse dynamics.
Degree: PhD, 2015, University of Bath
URL: https://researchportal.bath.ac.uk/en/studentthesis/position-and-force-control-of-cooperating-robots-using-inverse-dynamics(dd013afe-c312-4dab-a6a9-617fd31bbbc4).html
;
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.655721
► Multiple robot manipulators cooperating in a common manipulation task can accomplish complex tasks that a single manipulator would be unable to complete. To achieve physical…
(more)
▼ Multiple robot manipulators cooperating in a common manipulation task can accomplish complex tasks that a single manipulator would be unable to complete. To achieve physical cooperation with multiple manipulators working on a common object, interaction forces need to be controlled throughout the motion. The aim of this research is to develop an inverse dynamics model-based cooperative force and position control scheme for multiple robot manipulators. An extended definition of motion is proposed to include force demands based on a constrained Lagrangian dynamics and Lagrangian multipliers formulation. This allows the direct calculation of the inverse dynamics with both motion and force demands. A feedforward controller based on the proposed method is built to realise the cooperative control of two robots sharing a common load, with both motion and force demands. Furthermore, this thesis develops a method to design an optimal excitation trajectory for robot dynamic parameter estimation utilising the Schroeder Phased Harmonic Sequence. This method yields more precise and accurate inverse dynamics models, which result in better control. The proposed controller is then tested in an experimental set-up consisting of two robot manipulators and a common load. Results show that in general the proposed controller performs noticeably better position and force tracking, especially for higher speed motions, when compared to traditional hybrid position/force controllers.
Subjects/Keywords: 629.8; Robotics; Inverse dynamics; Force control; Cooperative control
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Du, Z. (2015). Position and force control of cooperating robots using inverse dynamics. (Doctoral Dissertation). University of Bath. Retrieved from https://researchportal.bath.ac.uk/en/studentthesis/position-and-force-control-of-cooperating-robots-using-inverse-dynamics(dd013afe-c312-4dab-a6a9-617fd31bbbc4).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.655721
Chicago Manual of Style (16th Edition):
Du, Zhenyu. “Position and force control of cooperating robots using inverse dynamics.” 2015. Doctoral Dissertation, University of Bath. Accessed January 19, 2021.
https://researchportal.bath.ac.uk/en/studentthesis/position-and-force-control-of-cooperating-robots-using-inverse-dynamics(dd013afe-c312-4dab-a6a9-617fd31bbbc4).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.655721.
MLA Handbook (7th Edition):
Du, Zhenyu. “Position and force control of cooperating robots using inverse dynamics.” 2015. Web. 19 Jan 2021.
Vancouver:
Du Z. Position and force control of cooperating robots using inverse dynamics. [Internet] [Doctoral dissertation]. University of Bath; 2015. [cited 2021 Jan 19].
Available from: https://researchportal.bath.ac.uk/en/studentthesis/position-and-force-control-of-cooperating-robots-using-inverse-dynamics(dd013afe-c312-4dab-a6a9-617fd31bbbc4).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.655721.
Council of Science Editors:
Du Z. Position and force control of cooperating robots using inverse dynamics. [Doctoral Dissertation]. University of Bath; 2015. Available from: https://researchportal.bath.ac.uk/en/studentthesis/position-and-force-control-of-cooperating-robots-using-inverse-dynamics(dd013afe-c312-4dab-a6a9-617fd31bbbc4).html ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.655721

Halmstad University
20.
Mak, Spencer.
Design and Implementation of Cooperative Adaptive Cruise Control.
Degree: Computer and Electrical Engineering (IDE), 2011, Halmstad University
URL: http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-15221
► With limited road infrastructure and increasing number of vehicles on the road, an intelligent transport system is needed to increase the throughput in traffic…
(more)
▼ With limited road infrastructure and increasing number of vehicles on the road, an intelligent transport system is needed to increase the throughput in traffic and minimize traffic jams in highly populated areas. The purpose of this project is to design and implement a control system that is capable of driving and following the preceding vehicle autonomously in the longitude direction only. The vehicle is also equipped with a vehicle to vehicle communication unit. With this information, all vehicles on the road can communicate with each other and are able to achieve shorter distances between vehicles and damp any disturbance caused by upstream traffic. A general structure on Cooperative Adaptive Cruise Control (CACC) is created by studying the research from The Netherlands Organization for Applied Scientific Research (TNO). A string stability criterion is used to determine if the system is suitable of driving in a platoon, where a string of vehicles are following a lead vehicle. This system is then implemented in a Volvo S60 and has participated in the 2011 Grand Cooperative Driving Challenge hosted in The Netherlands. The results show that the system has ability to increase throughput and damp disturbance on the upstream traffic by communicating with the other vehicles ahead. The system is also robust and simple enough to earn the 2nd place in the competition.
Grand Cooperative Driving Challenge
Subjects/Keywords: cooperative driving; control; string stability; CACC; GCDC; Automatic control; Reglerteknik
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Mak, S. (2011). Design and Implementation of Cooperative Adaptive Cruise Control. (Thesis). Halmstad University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-15221
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Mak, Spencer. “Design and Implementation of Cooperative Adaptive Cruise Control.” 2011. Thesis, Halmstad University. Accessed January 19, 2021.
http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-15221.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Mak, Spencer. “Design and Implementation of Cooperative Adaptive Cruise Control.” 2011. Web. 19 Jan 2021.
Vancouver:
Mak S. Design and Implementation of Cooperative Adaptive Cruise Control. [Internet] [Thesis]. Halmstad University; 2011. [cited 2021 Jan 19].
Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-15221.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Mak S. Design and Implementation of Cooperative Adaptive Cruise Control. [Thesis]. Halmstad University; 2011. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-15221
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Toronto
21.
Roza, Ashton.
Distributed Coordination Theory for Ground and Aerial Robot Teams.
Degree: PhD, 2019, University of Toronto
URL: http://hdl.handle.net/1807/95970
► This thesis investigates distributed coordination problems for two important classes of robots. One class corresponds to ground-based mobile robots, each modelled as a kinematic unicycle.…
(more)
▼ This thesis investigates distributed coordination problems for two important classes of robots. One class corresponds to ground-based mobile robots, each modelled as a kinematic unicycle. The second corresponds to flying robots, each propelled by a thrust vector and endowed with an actuation mechanism producing torques about three orthogonal body axes. The following coordination problems are studied in this thesis: rendezvous, formation
control, linear and circular formation flocking and formation path following.
For rendezvous of kinematic unicycles, a smooth, time-independent
control law is presented that drives the unicycles to a common position from arbitrary initial conditions, under the assumption that the sensing digraph is time-invariant and contains a globally reachable node. The proposed feedback is very simple and is local and distributed. For rendezvous of flying robots, a
control strategy is presented that makes the centres of mass of the vehicles converge to an arbitrarily small neighborhood of one another. The convergence is global, and each vehicle can compute its own
control input using local and distributed feedback.
For formation
control, the objective is to make an ensemble of kinematic unicycles achieve pre-defined inter-agent spacings with parallel heading angles. We consider scenarios where the formation either stops or moves with a final collective motion. In the latter case, problems of linear and circular formation flocking and formation path following are studied. A
control law is presented in each case that solves the problem for almost all initial conditions. For stopping and flocking formations, the proposed
control laws are local and distributed while for formation path following, the
control laws additionally require each agent to measure its displacement from the path. The idea used to solve the formation
control problems is to rigidly attach an offset vector to the body frame of each unicycle. It is shown that stabilizing the desired formation amounts to achieving consensus of the endpoints of the offset vectors, and simultaneously synchronizing the unicycles' heading angles. Extension of formation
control to flying robots using strictly local and distributed feedback is not addressed in this work and remains a challenging open problem.
Advisors/Committee Members: Maggiore, Manfredi, Scardovi, Luca, Electrical and Computer Engineering.
Subjects/Keywords: Autonomous robotics; Cooperative control; Distributed control; Stability of nonlinear systems; 0771
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Roza, A. (2019). Distributed Coordination Theory for Ground and Aerial Robot Teams. (Doctoral Dissertation). University of Toronto. Retrieved from http://hdl.handle.net/1807/95970
Chicago Manual of Style (16th Edition):
Roza, Ashton. “Distributed Coordination Theory for Ground and Aerial Robot Teams.” 2019. Doctoral Dissertation, University of Toronto. Accessed January 19, 2021.
http://hdl.handle.net/1807/95970.
MLA Handbook (7th Edition):
Roza, Ashton. “Distributed Coordination Theory for Ground and Aerial Robot Teams.” 2019. Web. 19 Jan 2021.
Vancouver:
Roza A. Distributed Coordination Theory for Ground and Aerial Robot Teams. [Internet] [Doctoral dissertation]. University of Toronto; 2019. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/1807/95970.
Council of Science Editors:
Roza A. Distributed Coordination Theory for Ground and Aerial Robot Teams. [Doctoral Dissertation]. University of Toronto; 2019. Available from: http://hdl.handle.net/1807/95970

Oklahoma State University
22.
La, Hung Manh.
Cooperative Control, Learning and Sensing in Mobile Sensor Networks.
Degree: School of Electrical & Computer Engineering, 2011, Oklahoma State University
URL: http://hdl.handle.net/11244/7859
► Mobile sensor networks (MSNs) have great potential in many applications including environment exploring and monitoring; search and rescue; cooperative detection of toxic chemicals, etc. Motivated…
(more)
▼ Mobile sensor networks (MSNs) have great potential in many applications including environment exploring and monitoring; search and rescue;
cooperative detection of toxic chemicals, etc. Motivated by the broad and important applications of MSNs and inspired by the
cooperative ability and the intelligence of fish schools and bird flocks, this dissertation develops
cooperative control, learning and sensing algorithms in a distributed fashion for MSNs to realize coordinated motion
control and intelligent situational awareness. The proposed algorithms can allow MSNs to track a moving target efficiently in cluttered environments and even when only a very small subset of the sensor nodes know the information of the target; adjust their size (shrink/recover) in order to adapt to complex environments while maintaining the network connectivity and topology; form a lattice structure and maintain the cohesion even when the measurements are corrupted by noise; track multiple moving targets simultaneously and efficiently in a dynamic fashion; learn to evade the enemy (predators) in a distributed fashion while maintaining the network connectivity and topology; estimate and build the map of a scalar field. We conducted several experiments using both simulation and real mobile robots to show the effectiveness of the proposed algorithms. We also extended our framework to
cooperative and active sensing in which the mobile sensors have the ability to adjust their movements to adapt to the environments in order to improve the sensing performance in a distributed fashion.
Advisors/Committee Members: Sheng, Weihua (advisor), Yen, Gary G. (committee member), Bukkapatnam, Satish T. (committee member), Cheng, Qi (committee member).
Subjects/Keywords: cooperative learning; cooperative sensing; flocking control; mobile sensor networks; multi-agent systems; sensor
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
La, H. M. (2011). Cooperative Control, Learning and Sensing in Mobile Sensor Networks. (Thesis). Oklahoma State University. Retrieved from http://hdl.handle.net/11244/7859
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
La, Hung Manh. “Cooperative Control, Learning and Sensing in Mobile Sensor Networks.” 2011. Thesis, Oklahoma State University. Accessed January 19, 2021.
http://hdl.handle.net/11244/7859.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
La, Hung Manh. “Cooperative Control, Learning and Sensing in Mobile Sensor Networks.” 2011. Web. 19 Jan 2021.
Vancouver:
La HM. Cooperative Control, Learning and Sensing in Mobile Sensor Networks. [Internet] [Thesis]. Oklahoma State University; 2011. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/11244/7859.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
La HM. Cooperative Control, Learning and Sensing in Mobile Sensor Networks. [Thesis]. Oklahoma State University; 2011. Available from: http://hdl.handle.net/11244/7859
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Virginia Tech
23.
Ala, Mani Venkat Sai Kumar.
Eco-Cooperative Adaptive Cruise Control at Signalized Intersections Considering Vehicle Queues.
Degree: MS, Civil Engineering, 2016, Virginia Tech
URL: http://hdl.handle.net/10919/78884
► Traffic signals typically produce vehicle stops and thus increase vehicle fuel consumption levels. Vehicle stops produced by traffic signals, decrease vehicle fuel economy on arterial…
(more)
▼ Traffic signals typically produce vehicle stops and thus increase vehicle fuel consumption levels. Vehicle stops produced by traffic signals, decrease vehicle fuel economy on arterial roads making it significantly lower than that on freeways. Eco-
Cooperative Adaptive Cruise
Control (Eco-CACC) systems can improve vehicle fuel efficiency by receiving Signal Phasing and Timing (SPaT) data form downstream signalized intersections via vehicle-to-infrastructure communication. The algorithm that was developed in an earlier study provides advisory speed recommendations to drivers to reduce vehicle fuel consumption levels in the vicinity of traffic signalized intersections. The research presented in this thesis enhances the algorithm by adding a queue length estimation component and incorporates the algorithm in the INTEGRATION microscopic traffic simulation software to test the system under varying conditions. The enhanced Eco-CACC algorithm is then tested in a simulation environment considering different levels of connected vehicle (CV) market penetration levels. The simulation analysis demonstrates that the algorithm is able to reduce the vehicle fuel consumption level by as high as 40%. Moreover, the overall benefits of the proposed algorithm is evaluated for different intersection configurations and CV market penetration rates (MPRs). The results demonstrate that for single lane approaches, the algorithm can reduce the overall fuel consumption levels and that higher MPRs result in larger savings. While for multilane approaches, lower MPRs produce negative impacts on fuel efficiency; only when MPRs are greater than 30%, can the algorithm work effectively in reducing fuel consumption levels. Subsequently a sensitivity analysis is conducted. The sensitivity analysis demonstrates that higher market penetration rates of Eco-CACC enabled vehicles can improve the environmental benefits of the algorithm, and the overall savings in fuel consumption are as high as 19% when all vehicles are equipped with the system. While, on multi-lane approaches, the algorithm has negative impacts on fuel consumption levels when the market penetration rate is lower than 30 percent. The analysis also indicates that the length of
control segments, the SPaT plan, and the traffic demand levels affect the algorithm performance significantly. The study further demonstrates that the algorithm has negative impacts on fuel consumption levels when the network is over-saturated.
Advisors/Committee Members: Rakha, Hesham A. (committeechair), Yang, Hao (committee member), Hancock, Kathleen L. (committee member).
Subjects/Keywords: Eco-Cooperative driving; Cooperative Adaptive Cruise Control; Connected Vehicles; Traffic Signals; Eco-transportation systems
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ala, M. V. S. K. (2016). Eco-Cooperative Adaptive Cruise Control at Signalized Intersections Considering Vehicle Queues. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/78884
Chicago Manual of Style (16th Edition):
Ala, Mani Venkat Sai Kumar. “Eco-Cooperative Adaptive Cruise Control at Signalized Intersections Considering Vehicle Queues.” 2016. Masters Thesis, Virginia Tech. Accessed January 19, 2021.
http://hdl.handle.net/10919/78884.
MLA Handbook (7th Edition):
Ala, Mani Venkat Sai Kumar. “Eco-Cooperative Adaptive Cruise Control at Signalized Intersections Considering Vehicle Queues.” 2016. Web. 19 Jan 2021.
Vancouver:
Ala MVSK. Eco-Cooperative Adaptive Cruise Control at Signalized Intersections Considering Vehicle Queues. [Internet] [Masters thesis]. Virginia Tech; 2016. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/10919/78884.
Council of Science Editors:
Ala MVSK. Eco-Cooperative Adaptive Cruise Control at Signalized Intersections Considering Vehicle Queues. [Masters Thesis]. Virginia Tech; 2016. Available from: http://hdl.handle.net/10919/78884

University of Illinois – Urbana-Champaign
24.
Li, Zhiyuan.
Guidance, control and estimation of autonomous vehicle systems.
Degree: PhD, 0133, 2014, University of Illinois – Urbana-Champaign
URL: http://hdl.handle.net/2142/46871
► This research focuses on designing practical guidance, control and estimation algorithms for autonomous vehicle systems. The objective is to provide robust control and estimation algorithms…
(more)
▼ This research focuses on designing practical guidance,
control and estimation algorithms for autonomous vehicle systems. The objective is to provide robust
control
and estimation algorithms for both single and multiple autonomous vehicles under realistic motion, sensing, and communication conditions such as uncertain
dynamics, passive sensor, limited communication range, and the complicated coupling among them.
With that objective in mind, we start with designing vision-based guidance and estimation algorithms for small unmanned air vehicles (UAVs) to track a ground
target. The tracking task is for the UAV to maintain a horizontal orbit around the target with a predefined radius, so as to provide continuous visual surveillance
of the target with a desired resolution. We design simple vision-based guidance laws for the cases of both static target and moving target by controlling only the
turn rate of the UAV, and give rigorous proofs of the “almost global” asymptotic stability of the closed-loop systems. We extend the tracking algorithm for a single
UAV to the case of coordinated target tracking with multiple UAVs by controlling only the turn rates, where, in addition to orbiting about the target, each UAV is
required to maintain given phase differences from others. In order to provide continuous estimates of the target’s motion, including its position, velocity, and
heading angle, we formulate an estimation problem in a deterministic setup such that the recently developed fast estimator can be applied which yields guaranteed
transient performance.
The second part of this thesis is dedicated to the topic of distributed
control of a group of unmanned vehicles, in the presence of realistic dynamical, sensing and
communication constraints. The objective is to drive a group of unmanned vehicles with uncertain dynamics from different initial conditions to aggregate towards
a moving target of interest and align their velocities with it, resulting in a moving flock. We develop a cascaded
control framework to decouple the inter-agent
coordination from local uncertainty compensation for each single agent, such that existing algorithms in literature designed for simple ideal agent kinematics can be
used as the outer-loop, while L1 adaptive controllers are used for the inner-loop. Two different ideal agent model are considered, namely, the double integrator and
the nonholonomic model.
To better handle the uncertainty compensation under limited computation and sensing capability, which is a quite common case for cheap and small autonomous
vehicles, we develop a new L1 adaptive controller in the third part of this thesis. It features a modified piecewise constant adaptive law that imposes significantly
less stringent requirements on the computation and sensing frequencies. The main idea is to more efficiently exploit the information of the uncertainties from the
past samples and use this information to compensate for the uncertainty in the next sample period. We compare the performance and robustness…
Advisors/Committee Members: Hovakimyan, Naira (advisor), Hovakimyan, Naira (Committee Chair), Basar, Tamer (committee member), Stipanović, Dušan M. (committee member), Salapaka, Srinivasa M. (committee member).
Subjects/Keywords: autonomous system; unmanned system; distributed control; Adaptive Control; cooperative control; vision based guidance
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Li, Z. (2014). Guidance, control and estimation of autonomous vehicle systems. (Doctoral Dissertation). University of Illinois – Urbana-Champaign. Retrieved from http://hdl.handle.net/2142/46871
Chicago Manual of Style (16th Edition):
Li, Zhiyuan. “Guidance, control and estimation of autonomous vehicle systems.” 2014. Doctoral Dissertation, University of Illinois – Urbana-Champaign. Accessed January 19, 2021.
http://hdl.handle.net/2142/46871.
MLA Handbook (7th Edition):
Li, Zhiyuan. “Guidance, control and estimation of autonomous vehicle systems.” 2014. Web. 19 Jan 2021.
Vancouver:
Li Z. Guidance, control and estimation of autonomous vehicle systems. [Internet] [Doctoral dissertation]. University of Illinois – Urbana-Champaign; 2014. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/2142/46871.
Council of Science Editors:
Li Z. Guidance, control and estimation of autonomous vehicle systems. [Doctoral Dissertation]. University of Illinois – Urbana-Champaign; 2014. Available from: http://hdl.handle.net/2142/46871

Indian Institute of Science
25.
Bansal, Gaurav.
Cooperative Communication In Store And Forward Wireless Networks Using Rateless Codes.
Degree: MSc Engg, Faculty of Engineering, 2013, Indian Institute of Science
URL: http://etd.iisc.ac.in/handle/2005/2225
► In this thesis, we consider a cooperative relay-assisted communication system that uses rateless codes. When multiple relays are present, the relay with the highest channel…
(more)
▼ In this thesis, we consider a
cooperative relay-assisted communication system that uses rateless codes. When multiple relays are present, the relay with the highest channel gain to the source is the first to successfully decode a message from the source and forward it to the destination. Thus, the unique properties of rateless codes ensure that both rate adaptation and relay selection occur without the transmitting source or relays acquiring instantaneous channel knowledge. We show that in such
cooperative systems, buffering messages at relays significantly increases throughput. We develop a novel analysis of these systems that combines the communication-theoretic aspects of cooperation over fading channels with the queuing-theoretic aspects associated with buffering. Closed-form expressions are derived for the throughput and end-to-end delay for the general case in which the channels between various nodes are not statistically identical. Results are also shown for the benchmark system that does not buffer messages.
Though relay selection combined with buffering of messages at the relays substantially increases the throughput of a
cooperative network, it also increases the end-to-end delays due to the additional queuing delays at the relay nodes. In order to overcome this, we propose a novel method that exploits a unique property of rateless codes that enables a receiver to decode a message from non-contiguous and unordered portions of the received signal. In it, each relay, depending on its queue length, ignores its received coded bits with a given probability. We show that this substantially reduces the end-to-end delays while retaining almost all of the throughput gain achieved by buffering. In effect, the method increases the odds that the message is first decoded by a relay with a smaller queue. Thus, the queuing load is balanced across the relays and traded off with transmission times. We derive conditions for the stability of this system when the various channels undergo fading. Despite encountering analytically intractable G/GI/1 queues in our system, we also gain insights about the method by analyzing a similar system with a simpler model for the relay-to-destination transmission times.
Next we combine the single relay selection scheme at the source with physical layer power
control at the relays (due to the diversity provided by the rateless codes, power
control at the source is not needed). We derive an optimal power
control policy that minimizes the relay to destination transmission time. Due to its computational and implementation complexity, we develop another heuristic easily implementable near optimal policy. In this policy, power allocated turns out to be inversely proportional to the square root of channel gain. We also see that this policy performs better than the channel inversion policy. Our power
control solution substantially decreases the mean end-to-end delays with a marginal increase in throughput also. Finally, we combine bit dropping with power
control at the relays which further…
Advisors/Committee Members: Sharma, Vinod (advisor).
Subjects/Keywords: Wireless Communication Networks; Cooperative Relay-Assisted Communication; Queued Cooperative Communication; Rateless Codes; Relay Load Balancing; Relays - Power Control; Queued Cooperative Wireless Networks; Cooperative System; Buffered Relays; Communication Engineering
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Bansal, G. (2013). Cooperative Communication In Store And Forward Wireless Networks Using Rateless Codes. (Masters Thesis). Indian Institute of Science. Retrieved from http://etd.iisc.ac.in/handle/2005/2225
Chicago Manual of Style (16th Edition):
Bansal, Gaurav. “Cooperative Communication In Store And Forward Wireless Networks Using Rateless Codes.” 2013. Masters Thesis, Indian Institute of Science. Accessed January 19, 2021.
http://etd.iisc.ac.in/handle/2005/2225.
MLA Handbook (7th Edition):
Bansal, Gaurav. “Cooperative Communication In Store And Forward Wireless Networks Using Rateless Codes.” 2013. Web. 19 Jan 2021.
Vancouver:
Bansal G. Cooperative Communication In Store And Forward Wireless Networks Using Rateless Codes. [Internet] [Masters thesis]. Indian Institute of Science; 2013. [cited 2021 Jan 19].
Available from: http://etd.iisc.ac.in/handle/2005/2225.
Council of Science Editors:
Bansal G. Cooperative Communication In Store And Forward Wireless Networks Using Rateless Codes. [Masters Thesis]. Indian Institute of Science; 2013. Available from: http://etd.iisc.ac.in/handle/2005/2225

York University
26.
Liu, Lei.
Cooperative Control of Nonlinear Multi-Agent Systems.
Degree: PhD, Earth & Space Science, 2016, York University
URL: http://hdl.handle.net/10315/32733
► Multi-agent systems have attracted great interest due to their potential applications in a variety of areas. In this dissertation, a nonlinear consensus algorithm is developed…
(more)
▼ Multi-agent systems have attracted great interest due to their potential applications in a variety of areas. In this dissertation, a nonlinear consensus algorithm is developed for networked Euler-Lagrange multi-agent systems. The proposed consensus algorithm guarantees that all agents can reach a common state in the workspace. Meanwhile, the external disturbances and structural uncertainties are fundamentally considered in the controller design. The robustness of the proposed consensus algorithm is then demonstrated in the stability analysis. Furthermore, experiments are conducted to validate the effectiveness of the proposed consensus algorithm.
Next, a distributed leader-follower formation tracking controller is developed for networked nonlinear multi-agent systems. The dynamics of each agent are modeled by Euler-Lagrange equations, and all agents are guaranteed to track a desired time-varying trajectory in the presence of noise. The fault diagnosis strategy of the nonlinear multi-agent system is also investigated with the help of differential geometry tools. The effectiveness of the proposed controller is verified through simulations.
To further extend the application area of the multi-agent technique, a distributed robust controller is then developed for networked Lipschitz nonlinear multi-agent systems. With the appearance of system uncertainties and external disturbances, a sampled-data feedback
control protocol is carried out through the Lyapunov functional approach. The effectiveness of the proposed controller is verified by numerical simulations. Other than the robustness and sampled-data information exchange, this dissertation is also concerned with the event-triggered consensus problem for the Lipschitz nonlinear multi-agent systems. Furthermore, the sufficient condition for the stochastic stabilization of the networked
control system is proposed based on the Lyapunov functional method. Finally, simulation is conducted to demonstrate the effectiveness of the proposed
control algorithm.
In this dissertation, the
cooperative control of networked Euler-Lagrange systems and networked Lipschitz systems is investigated essentially with the assistance of nonlinear
control theory and diverse controller design techniques. The main objective of this work is to propose realizable
control algorithms for nonlinear multi-agent systems.
Advisors/Committee Members: Shan, Jinjun (advisor).
Subjects/Keywords: Mathematics; Control theory; Consensus; Cooperative control; Robust control; Nonlinear control; Synchronization; Multi-agent systems; Sampled-data control; Fault diagnosis
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Liu, L. (2016). Cooperative Control of Nonlinear Multi-Agent Systems. (Doctoral Dissertation). York University. Retrieved from http://hdl.handle.net/10315/32733
Chicago Manual of Style (16th Edition):
Liu, Lei. “Cooperative Control of Nonlinear Multi-Agent Systems.” 2016. Doctoral Dissertation, York University. Accessed January 19, 2021.
http://hdl.handle.net/10315/32733.
MLA Handbook (7th Edition):
Liu, Lei. “Cooperative Control of Nonlinear Multi-Agent Systems.” 2016. Web. 19 Jan 2021.
Vancouver:
Liu L. Cooperative Control of Nonlinear Multi-Agent Systems. [Internet] [Doctoral dissertation]. York University; 2016. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/10315/32733.
Council of Science Editors:
Liu L. Cooperative Control of Nonlinear Multi-Agent Systems. [Doctoral Dissertation]. York University; 2016. Available from: http://hdl.handle.net/10315/32733
27.
[No author].
A pr??tica da Controladoria nas maiores sociedades cooperativas agroindustriais do Estado do Paran??
.
Degree: 2013, Fundação Escola de Comércio Ãlvares Penteado
URL: http://132.0.0.61:8080/tede/handle/tede/521
► The study examined the characteristics of the controller identified in cooperative societies to complement the studies of researchers linked to the accounting features and functions…
(more)
▼ The study examined the characteristics of the controller identified in
cooperative societies to complement the studies of researchers linked to the accounting features and functions on the controller. The approach in the agribusiness segment is justified by its economic representativeness in Brazil and the type of
cooperative society by corporate structuring. The technique predominantly qualitative approach in defining the profile of research, this, is structured from the perspective of exploratory and descriptive typology. The research instruments adopted for construction of the dissertation highlights the direct and indirect structured interviews. The research sought to understand the practices used by companies controlling most of Paran?? agribusiness cooperatives, and what is its adherence to the basic conceptual framework of controllership - ECBC proposal by Borinelli (2006). The multiple case study researched the top five
cooperative societies in the state, justified by the same accessibility through the pre-test used in two of them and their representation in the regional economy and Brazil. The research corroborated with qualitative studies on the phenomenon as controllership management unit and its functions, and identified important points for the treatment of basic conceptual framework. The research concluded that in cooperatives, no adhesion by typical roles within the Basic Conceptual Structure of Controllership (ECBC) as defends Borinelli (2006). In the case of clusters studied in conceptual structure, the basic examination in five cases evidenced by partial adhesion in two cases and by not applying in other, therefore allows us to conclude that the framework does not apply to cooperatives
Advisors/Committee Members: Parisi, Claudio (advisor), CPF:14742962893 (advisor), http://lattes.cnpq.br/2891889803015460 (advisor).
Subjects/Keywords: Controladoria;
Cooperativas;
Controle financeiro;
Controllership;
Financial control;
Cooperative societies
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
author], [. (2013). A pr??tica da Controladoria nas maiores sociedades cooperativas agroindustriais do Estado do Paran??
. (Thesis). Fundação Escola de Comércio Ãlvares Penteado. Retrieved from http://132.0.0.61:8080/tede/handle/tede/521
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
author], [No. “A pr??tica da Controladoria nas maiores sociedades cooperativas agroindustriais do Estado do Paran??
.” 2013. Thesis, Fundação Escola de Comércio Ãlvares Penteado. Accessed January 19, 2021.
http://132.0.0.61:8080/tede/handle/tede/521.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
author], [No. “A pr??tica da Controladoria nas maiores sociedades cooperativas agroindustriais do Estado do Paran??
.” 2013. Web. 19 Jan 2021.
Vancouver:
author] [. A pr??tica da Controladoria nas maiores sociedades cooperativas agroindustriais do Estado do Paran??
. [Internet] [Thesis]. Fundação Escola de Comércio Ãlvares Penteado; 2013. [cited 2021 Jan 19].
Available from: http://132.0.0.61:8080/tede/handle/tede/521.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
author] [. A pr??tica da Controladoria nas maiores sociedades cooperativas agroindustriais do Estado do Paran??
. [Thesis]. Fundação Escola de Comércio Ãlvares Penteado; 2013. Available from: http://132.0.0.61:8080/tede/handle/tede/521
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
28.
Iskandarani, Mohamad.
Implementing Autonomous Unmanned Aerial Vehicle Tactics on
Quadrotor Aircraft Using Linear Model Predictive Control.
Degree: MASc (Master of Applied Science/Maîtrise ès sciences
appliquées), Electrical and Computer Engineering/Génie électrique et
informatique, 2014, Royal Military College of Canada
URL: http://hdl.handle.net/11264/62
► UAVs are gaining great interest due to their wide area of applications in the military and civilian fields. Applying these UAVs autonomously and in a…
(more)
▼ UAVs are gaining great interest due to their wide area
of applications in the military and civilian fields. Applying these
UAVs autonomously and in a decentralized manner to the
accomplishment of various tasks is a growing trend in the field of
cooperative robotics. Among these challenging group tasks we find
certain UAV tactics, such as dynamic encirclement and formation
flights, operating under the umbrella of safe and robust tactic
switching. Dynamic encirclement is defined as the situation in
which a target is isolated and surrounded by a UAV team in order to
maintain awareness and containment of it. Formation flights allow
for line abreast, triangle or cross formations while in flight,
during which the team members match distance and speed with the
others. In this thesis, the problem of switching from formation
flights to dynamic encirclement is considered, and a decentralized
Linear Model Predictive Control (LMPC) strategy is formulated.
Other control techniques such Taylor series linearization (TSL) and
Feedback Linearization (FL) are used to linearize the complex
tactics models. It is shown, through simulation results and
experimental validation, that the designed control policy is
effective for a team of N UAVs in formation flights switching to
dynamic encirclement of a stationary and moving target. With
real-world flight tests, the Qball-X4 quadrotor aircraft is used as
a validation platform.
Les drones, appliqu és aux domaines civiles et
militaires, ont suscit és un int erêt
croissant à cause de leur
potentiel. L'utilisation des drones, d'une fa çon autonome et
d
écentralis ée, pour l'accomplissement de taches vari ées est une
tendance croissante
dans la communaut é de la robotique coop
erative. Parmi ces taches complexes, on
trouve des tactiques de
drones, tels que l'encerclement dynamique et les vols en
formations,
o u les v éhicules accomplissent un transfert stable
et robuste d'une tactique
à l'autre. Limiter le mouvement et avoir
conscience d'une cible est consid er é comme
partie int egrante de
l'encerclement dynamique. Les vols en formations, tels que ligne
de front, triangle et croix, permettent aux membres de l' équipe de
maintenir les distances
et les vitesses requises par rapport aux
autres. Dans ce m emoire, le probl ème
de transfert stable des
vols en formation à l'encerclement dynamique est consid er é
et
une strat egie de commande pr édictive lin eaire est formul ée.
Autres techniques
de controles, telles que la lin earisation par s
eries de Taylor et la lin earisation par
r etroaction, sont employ
ées pour simplifi er les mod èles non-lin eaires repr esentants
les
tactiques. Il est d emontr é, à travers des r esultats en
simulation et des validations
exp érimentales, que la politique de
controle propos ée est e fficace pour une equipe de
N drones qui
changent de vols en formation à encerclement dynamique. Par
rapport
aux vols exp erimentaux, le quadrirotor Qball-X4 est
utilis é.
Graduate
Advisors/Committee Members: Royal Military College of Canada / Collège militaire royal du Canada, Givigi, Sidney.
Subjects/Keywords: Autonomous robotics; Cooperative robotics; Unmanned aerial vehicle; Linear model predictive control
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Iskandarani, M. (2014). Implementing Autonomous Unmanned Aerial Vehicle Tactics on
Quadrotor Aircraft Using Linear Model Predictive Control. (Masters Thesis). Royal Military College of Canada. Retrieved from http://hdl.handle.net/11264/62
Chicago Manual of Style (16th Edition):
Iskandarani, Mohamad. “Implementing Autonomous Unmanned Aerial Vehicle Tactics on
Quadrotor Aircraft Using Linear Model Predictive Control.” 2014. Masters Thesis, Royal Military College of Canada. Accessed January 19, 2021.
http://hdl.handle.net/11264/62.
MLA Handbook (7th Edition):
Iskandarani, Mohamad. “Implementing Autonomous Unmanned Aerial Vehicle Tactics on
Quadrotor Aircraft Using Linear Model Predictive Control.” 2014. Web. 19 Jan 2021.
Vancouver:
Iskandarani M. Implementing Autonomous Unmanned Aerial Vehicle Tactics on
Quadrotor Aircraft Using Linear Model Predictive Control. [Internet] [Masters thesis]. Royal Military College of Canada; 2014. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/11264/62.
Council of Science Editors:
Iskandarani M. Implementing Autonomous Unmanned Aerial Vehicle Tactics on
Quadrotor Aircraft Using Linear Model Predictive Control. [Masters Thesis]. Royal Military College of Canada; 2014. Available from: http://hdl.handle.net/11264/62

University of California – Berkeley
29.
Mace-Hill, Kevi Claire.
Understanding, using, and promoting biological control: from commercial walnut orchards to school gardens.
Degree: Environmental Science, Policy, & Management, 2015, University of California – Berkeley
URL: http://www.escholarship.org/uc/item/5jh3v7k9
► Growing populations and changing diets have put great pressure on food systems throughout the world and have lead to increasing agricultural intensification including the greater…
(more)
▼ Growing populations and changing diets have put great pressure on food systems throughout the world and have lead to increasing agricultural intensification including the greater use of pesticides and fertilizers. Given the associated human and environmental health costs of intensification, the development of more sustainable practices is imperative. One such avenue is to make better use of natural ecosystem services, such as the use of conservation biological control to reduce reliance on pesticide. However, there are logistical and educational impediments to the more effective use of resident natural enemies through conservation biological control that need to be addressed. These include how other agricultural management practices impact biological control, and how managers can tell if it is working or when it will work. Along with pesticides, fertilizers are a defining aspect of modern agriculture, but their effect on biological control services has seldom been evaluated. The effects of plant quality on natural enemies are often overlooked developing biological control programs for insect pests in agriculture. An enhanced nutritional status of plants can fuel insect population growth because nitrogen is an important component of proteins that are known to be limiting for phytophagous insects. Additionally, nitrogen fertilizers directly and indirectly affect plant defenses. In this dissertation I used walnuts to address the effect of increased nitrogen availability to the host plant on walnut aphid it{Chromaphis juglandicola} and on parasitism by the specialist parasitoid it{Trioxys pallidus}. From laboratory experiments and field sampling, nitrogen content of foliage did not change aphid population growth rate or aphid size. However, in laboratory experiments added nitrogen decreased the number of mummies produced by female parasitoids over a 24 h period, but increased the proportion and the size of female offspring. Field sampling of walnut orchards showed no relationship between the percent parasitism of walnut aphids by it{T. pallidus} and nitrogen content of foliage. Although nitrogen fertilizer and plant quality can affect biological control in other crops, it did not appear to be a problem for biological control of walnut aphids.Biological control in action is often hard to visualize and even more difficult to quantify in the context of pest population management. Readily measured metrics are needed to accurately predict the effectiveness of biological control services: this would then allow managers to say, given this set of measurements, control of an insect pest can be expected today or at some point in the near future. Using walnuts and walnut aphids as a model system, I investigated whether activity measurements and diversity indices for the natural enemy assemblages present in walnut orchards would be good indicators of current and future biological control. While percent parasitism, predator:prey ratio, and natural enemy evenness were good indicators of current biological control, there…
Subjects/Keywords: Ecology; Entomology; Agriculture; Biological control; Cooperative Extension; Gardens; Natural enemies; Walnuts
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Mace-Hill, K. C. (2015). Understanding, using, and promoting biological control: from commercial walnut orchards to school gardens. (Thesis). University of California – Berkeley. Retrieved from http://www.escholarship.org/uc/item/5jh3v7k9
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Mace-Hill, Kevi Claire. “Understanding, using, and promoting biological control: from commercial walnut orchards to school gardens.” 2015. Thesis, University of California – Berkeley. Accessed January 19, 2021.
http://www.escholarship.org/uc/item/5jh3v7k9.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Mace-Hill, Kevi Claire. “Understanding, using, and promoting biological control: from commercial walnut orchards to school gardens.” 2015. Web. 19 Jan 2021.
Vancouver:
Mace-Hill KC. Understanding, using, and promoting biological control: from commercial walnut orchards to school gardens. [Internet] [Thesis]. University of California – Berkeley; 2015. [cited 2021 Jan 19].
Available from: http://www.escholarship.org/uc/item/5jh3v7k9.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Mace-Hill KC. Understanding, using, and promoting biological control: from commercial walnut orchards to school gardens. [Thesis]. University of California – Berkeley; 2015. Available from: http://www.escholarship.org/uc/item/5jh3v7k9
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Australian National University
30.
Sun, Zhiyong.
Cooperative Coordination and Formation Control for Multi-agent Systems
.
Degree: 2016, Australian National University
URL: http://hdl.handle.net/1885/112237
► The primary aim of this thesis is to study cooperative coordination control and formation control for multi-agent systems, with a focus on distributed stabilization control…
(more)
▼ The primary aim of this thesis is to study cooperative
coordination control and formation control for multi-agent
systems, with a focus on distributed stabilization control of
rigid formation shapes. We consider several problems in the
field, ranging from the equilibrium and stability of formation
control systems, some practical considerations in formation
control, and cooperative coordination control when agents have
general dynamical models.
In the first part of the thesis, we study in detail the
equilibrium property of rigid formation control systems. A
rank-preserving property is established for this coordination
control system, and with this property we further prove the
instability of a special equilibrium set (termed degenerate
equilibria) at which agents' positions only span an affine space
with dimension less than that of the full space. The exponential
stability of rigid formation control systems for a large family
of formation controllers is also proved, with the property
applying for both minimally rigid formations and non-minimally
rigid formations. This approach provides a general and unified
way for stability analysis of formation control systems.
In the second part, we investigate several practical issues on
formation control, including robustness issues, rigid shape
stabilization with a prescribed orientation, and formation
control with quantized measurements. From the exponential
stability proved in the first part, we discuss the convergence
and robustness property for 3-D rigid formation control systems
with distance mismatches, and identify a helical rigid motion
induced by mismatched distances. In addition, we propose a
feasible formation controller to achieve a desired rigid shape
and a prescribed formation orientation in ambient 2-D and 3-D
spaces, with minimal knowledge of the global coordinate frame
orientation. Furthermore, quantization effects on rigid formation
shape stabilization are discussed in detail in the case that the
cooperative formation control only uses quantized distance
measurements.
In the third part, we extend some main results considered in
previous chapters on formation control systems modelled by single
integrators to systems modelled by more general dynamics,
including double integrator models and nonlinear control systems.
First, two types of double-integrator cooperative control systems
(i.e. formation stabilization systems and flocking control
systems with a target rigid shape) are thoroughly investigated.
By using a family of parameterized Hamiltonian-like systems, we
further establish certain invariance principles concerning the
equilibrium set and local stability, which build the link between
the stability analysis for formation systems modelled by single
integrators and those modelled by double integrators. In
…
Subjects/Keywords: Multi-agent Systems;
Cooperative Coordination;
Formation Control;
Networked Systems;
Stability
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Sun, Z. (2016). Cooperative Coordination and Formation Control for Multi-agent Systems
. (Thesis). Australian National University. Retrieved from http://hdl.handle.net/1885/112237
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Sun, Zhiyong. “Cooperative Coordination and Formation Control for Multi-agent Systems
.” 2016. Thesis, Australian National University. Accessed January 19, 2021.
http://hdl.handle.net/1885/112237.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Sun, Zhiyong. “Cooperative Coordination and Formation Control for Multi-agent Systems
.” 2016. Web. 19 Jan 2021.
Vancouver:
Sun Z. Cooperative Coordination and Formation Control for Multi-agent Systems
. [Internet] [Thesis]. Australian National University; 2016. [cited 2021 Jan 19].
Available from: http://hdl.handle.net/1885/112237.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Sun Z. Cooperative Coordination and Formation Control for Multi-agent Systems
. [Thesis]. Australian National University; 2016. Available from: http://hdl.handle.net/1885/112237
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
◁ [1] [2] [3] [4] [5] [6] [7] [8] ▶
.