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University of Iowa
1.
Domaszczynski, Piotr.
Performance evaluation of a network of polarimetric X-Band radars used for rainfall estimation.
Degree: PhD, Civil and Environmental Engineering, 2012, University of Iowa
URL: https://ir.uiowa.edu/etd/3286
► Networks of small, often mobile, polarimetric radars are gaining popularity in the hydrometeorology community due to their rainfall observing capabilities and relative low purchase…
(more)
▼ Networks of small, often mobile, polarimetric radars are gaining popularity in the hydrometeorology community due to their rainfall observing capabilities and relative low purchase cost. In recent years, a number of installations have become operational around the globe. The problem of signal attenuation by intervening rainfall has been recognized as the major source of error in rainfall estimation by short-wavelength (C-, X, K-band) radars. The simultaneous observation of precipitation by multiple radars creates new prospects for better and more robust attenuation correction algorithms and, consequently, yields more accurate rainfall estimation. The University of Iowa hydrometeorology group's acquisition of a
network of four mobile, polarimetric, X-band radars has resulted in the need for a thoughtful evaluation of the instrument. In this work, we use computer simulations and the data collected by The University of Iowa Polarimetric
Radar Network to study the performance of attenuation correction methods in single-
radar and
network-based arrangements. To support the computer simulations, we developed a comprehensive polarimetric
radar network simulator, which replicates the essential aspects of the
radar network rainfall observing process. The simulations are based on a series of physics- and stochastic-based simulated rainfall events occurring over the area of interest. The characteristics of the simulated radars are those of The University of Iowa Polarimetric
Radar Network. We assess the correction methods by analyzing the errors in reflectivity and rainfall rate over the area of interest covered by the
network's radars. To enable the implementation of the attenuation correction methods to the data collected by The University of Iowa Polarimetric
Radar Network, we first developed a set of utilities to assist with efficient data collection and analysis. Next, we conducted a series of calibration tests to evaluate the relative calibration and channel balance of the 2
network's radars. Finally, in an attempt to verify the results obtained via computer simulations, we applied the set of attenuation correction algorithms to the data collected by The University of Iowa Polarimetric
Radar Network.
Advisors/Committee Members: Krajewski, Witold F. (supervisor).
Subjects/Keywords: attenuation correction; Polarimetric radar networks; radar network simulator; X-band radar; Civil and Environmental Engineering
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APA (6th Edition):
Domaszczynski, P. (2012). Performance evaluation of a network of polarimetric X-Band radars used for rainfall estimation. (Doctoral Dissertation). University of Iowa. Retrieved from https://ir.uiowa.edu/etd/3286
Chicago Manual of Style (16th Edition):
Domaszczynski, Piotr. “Performance evaluation of a network of polarimetric X-Band radars used for rainfall estimation.” 2012. Doctoral Dissertation, University of Iowa. Accessed February 27, 2021.
https://ir.uiowa.edu/etd/3286.
MLA Handbook (7th Edition):
Domaszczynski, Piotr. “Performance evaluation of a network of polarimetric X-Band radars used for rainfall estimation.” 2012. Web. 27 Feb 2021.
Vancouver:
Domaszczynski P. Performance evaluation of a network of polarimetric X-Band radars used for rainfall estimation. [Internet] [Doctoral dissertation]. University of Iowa; 2012. [cited 2021 Feb 27].
Available from: https://ir.uiowa.edu/etd/3286.
Council of Science Editors:
Domaszczynski P. Performance evaluation of a network of polarimetric X-Band radars used for rainfall estimation. [Doctoral Dissertation]. University of Iowa; 2012. Available from: https://ir.uiowa.edu/etd/3286

Penn State University
2.
Herrold, Brian Alexander.
Complete Vector Network Analyzer Approach to Ice Penetrating Radar System.
Degree: 2013, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/19114
► This thesis explores the design of a complete system for Ice-Penetrating Radar (IPR) measurements of polar-region ice thickness. The goal of the radar system is…
(more)
▼ This thesis explores the design of a complete system for Ice-Penetrating
Radar (IPR) measurements of polar-region ice thickness. The goal of the
radar system is provide high resolution measurements of of the change in ice thickness between successive measurements at a fixed location on the ice over time. The design requirement for resolution in thickness change is better than ± 1mm. The system designed can make absolute ice thickness to a much less accurate degree than the relative measurements of thickness change.
This approach is based on adapting a previously published design for a low-cost Vector
Network Analyzer (VNA) to a rugged form factor and optimizing the performance parameters of the instrument to maximize its usefulness for ice-penetrating
radar measurements. The
radar relies on precise measurement of the magnitude and phase response of the propagation path from transmitting antenna to receiving antenna, through the ice and off the ice bottom, to make the thickness measurements. The phase change of the response of the ice between successive measurements allows the user to determine small thicknesses changes with very high accuracy. The inverse Fourier transform of the magnitude and phase frequency-response of the path provides the time domain approximation of the path response to a very short
radar pulse.
Advisors/Committee Members: Sven G Bilen, Thesis Advisor/Co-Advisor.
Subjects/Keywords: Ice; Radar; Vector Network Analyzer; VNA; Radioglaciology
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APA ·
Chicago ·
MLA ·
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APA (6th Edition):
Herrold, B. A. (2013). Complete Vector Network Analyzer Approach to Ice Penetrating Radar System. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/19114
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):
Herrold, Brian Alexander. “Complete Vector Network Analyzer Approach to Ice Penetrating Radar System.” 2013. Thesis, Penn State University. Accessed February 27, 2021.
https://submit-etda.libraries.psu.edu/catalog/19114.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Herrold, Brian Alexander. “Complete Vector Network Analyzer Approach to Ice Penetrating Radar System.” 2013. Web. 27 Feb 2021.
Vancouver:
Herrold BA. Complete Vector Network Analyzer Approach to Ice Penetrating Radar System. [Internet] [Thesis]. Penn State University; 2013. [cited 2021 Feb 27].
Available from: https://submit-etda.libraries.psu.edu/catalog/19114.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Herrold BA. Complete Vector Network Analyzer Approach to Ice Penetrating Radar System. [Thesis]. Penn State University; 2013. Available from: https://submit-etda.libraries.psu.edu/catalog/19114
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University
3.
Pan, Qihe.
RFID RADAR TAG SYSTEM DESIGN USING ULTRAWIDEBAND NOISE WAVEFORMS
.
Degree: 2011, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/12498
► Radio frequency identification (RFID) tags are small electronic devices working in the radio frequency range. They use wireless radio communications to automatically identify objects or…
(more)
▼ Radio frequency identification (RFID) tags are small electronic devices working in the radio frequency range. They use wireless radio communications to automatically identify objects or people without the need for line-of-sight or contact, and are widely used in inventory tracking, object location, environmental monitoring due to their low cost, small size, and wireless functionality.
This dissertation explores the application of active RFID tags in outdoor environments responding to random noise
radar interrogations with pre-determined messages. A conceptual system design for communication between
radar and RFID tags using ultrawideband (UWB) noise waveforms is proposed and analyzed theoretically and via simulations. The tag structure comprises a sensing receiver and active receiver/transmitter. The sensing receiver senses the
radar header consisting of a pre-arranged secret realization of the noise waveform. The active receiver/transmitter modulates the RFID tag’s message onto the
radar interrogation signal through weighted tapped delays and reradiates the tag message back to the
radar. System performance is evaluated in terms of symbol error probability in an additive white Gaussian noise (AWGN) channel. An algorithm to combat multipath interferences on the RFID tag–to–
radar link is presented. It is shown that this system is capable of communicating a suite of messages from the tags to the
radar.
This dissertation also explores the application of active RFID tags in target discovery and information routing in the RFID networks. The design of a covert RFID tag
network for target discovery and target information routing is presented. In the design, a static or very slowly moving target in the field of RFID tags transmits a distinct pseudo-noise signal, and the RFID tags in the
network collect the target information and route it to the command center. A map of each RFID tag’s location is saved at command center, which can determine where a RFID tag is located based on each RFID tag’s ID. The target information collection method with target association and clustering, and the information routing algorithm within the RFID tag
network are proposed. The design and operation of the proposed algorithms are illustrated through examples. Simulation results demonstrate the effectiveness of the design.
Advisors/Committee Members: Ram Mohan Narayanan, Dissertation Advisor/Co-Advisor, Ram Mohan Narayanan, Committee Chair/Co-Chair, James Kenneth Breakall, Committee Member, Douglas Henry Werner, Committee Member, Stephen George Simpson, Committee Member.
Subjects/Keywords: network; system; noise waveforms; radar; RFID tag
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Pan, Q. (2011). RFID RADAR TAG SYSTEM DESIGN USING ULTRAWIDEBAND NOISE WAVEFORMS
. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/12498
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):
Pan, Qihe. “RFID RADAR TAG SYSTEM DESIGN USING ULTRAWIDEBAND NOISE WAVEFORMS
.” 2011. Thesis, Penn State University. Accessed February 27, 2021.
https://submit-etda.libraries.psu.edu/catalog/12498.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Pan, Qihe. “RFID RADAR TAG SYSTEM DESIGN USING ULTRAWIDEBAND NOISE WAVEFORMS
.” 2011. Web. 27 Feb 2021.
Vancouver:
Pan Q. RFID RADAR TAG SYSTEM DESIGN USING ULTRAWIDEBAND NOISE WAVEFORMS
. [Internet] [Thesis]. Penn State University; 2011. [cited 2021 Feb 27].
Available from: https://submit-etda.libraries.psu.edu/catalog/12498.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Pan Q. RFID RADAR TAG SYSTEM DESIGN USING ULTRAWIDEBAND NOISE WAVEFORMS
. [Thesis]. Penn State University; 2011. Available from: https://submit-etda.libraries.psu.edu/catalog/12498
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
4.
Hopf, Anthony P.
Informativeness and the Computational Metrology of Collaborative Adaptive Sensor Systems.
Degree: PhD, Electrical and Computer Engineering, 2011, U of Massachusetts : PhD
URL: https://scholarworks.umass.edu/open_access_dissertations/367
► Complex engineered systems evolve, with a tendency toward self-organization, which can, paradoxically, frustrate the aims of those seeking to develop them. The systems engineer,…
(more)
▼ Complex engineered systems evolve, with a tendency toward self-organization, which can, paradoxically, frustrate the aims of those seeking to develop them. The systems engineer, seeking to promote the development in the context of changing and uncertain requirements, is challenged by conceptual gaps that emerge within engineering projects, particularly as they scale up, that inhibit communication among the various stakeholders. Overall optimization, involving multiple criterion, is often expressed in the language of the individual parties, increasing the complexity of the overall situation, subsuming the participants within the evolution of the complex engineered system, containing the objective and subjective in counterproductive or inefficient ways that can arrest healthy development.
The conventional pragmatic systems engineering approach to the resolution of such situations is to introduce architectural discipline by way of separation of concerns. In complex engineered systems projects, the crucial interface, at any level of abstraction, is between the technical domain experts and higher level decision makers. Bridging the ensuing conceptual gap requires models and methods that provide communication tools promoting a convergence of the conversation between these parties on a common "common sense" of the underlying reality of the evolving engineered system. In the interest of conceptual clarity, we confine our investigation to a restricted, but important general class of evolving engineered system, information gathering and utilizing systems. Such systems naturally resolve the underlying domain specific measures by reduction into common plausible information measures aimed at an overall sense of informativeness. For concreteness, we further restrict the investigation and the demonstration to a species that is well documented in the open literature: weather
radar networks, and in particular to the case of the currently emerging system referred to as CASA.
The multiobjective problem of objectively exploring the high dimensionality of the decision space is done using multiobjective genetic algorithms (MOGA), specifically the John Eddy genetic algorithms (JEGA), resulting in well-formed Pareto fronts and sets containing Pareto optimal points within 20% of the ideal point. A visualization technique ensures a clear separation of the subjective criterion provided by the decision makers by superficially adding preferences to the objective optimal solutions. To identify the integrative objective functions and test patterns utilized in the MOGA analysis, explorations of networked weather
radar technologies and configuration are completed. The explorations identify trends within and between
network topologies, and captures both the robustness and fragility of
network based measurements. The information oriented measures of fusion accuracy and precision are used to evaluate pairs of networked weather radars against a standardized low order vortex test pattern, resulting in a metrics for characterizing the…
Advisors/Committee Members: Alfred P. DeFonzo, Christopher V. Hollot, Stephen Frasier.
Subjects/Keywords: decision problem; information oriented; Informativeness; radar network; sensor systems; weather radar; Electrical and Computer Engineering
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hopf, A. P. (2011). Informativeness and the Computational Metrology of Collaborative Adaptive Sensor Systems. (Doctoral Dissertation). U of Massachusetts : PhD. Retrieved from https://scholarworks.umass.edu/open_access_dissertations/367
Chicago Manual of Style (16th Edition):
Hopf, Anthony P. “Informativeness and the Computational Metrology of Collaborative Adaptive Sensor Systems.” 2011. Doctoral Dissertation, U of Massachusetts : PhD. Accessed February 27, 2021.
https://scholarworks.umass.edu/open_access_dissertations/367.
MLA Handbook (7th Edition):
Hopf, Anthony P. “Informativeness and the Computational Metrology of Collaborative Adaptive Sensor Systems.” 2011. Web. 27 Feb 2021.
Vancouver:
Hopf AP. Informativeness and the Computational Metrology of Collaborative Adaptive Sensor Systems. [Internet] [Doctoral dissertation]. U of Massachusetts : PhD; 2011. [cited 2021 Feb 27].
Available from: https://scholarworks.umass.edu/open_access_dissertations/367.
Council of Science Editors:
Hopf AP. Informativeness and the Computational Metrology of Collaborative Adaptive Sensor Systems. [Doctoral Dissertation]. U of Massachusetts : PhD; 2011. Available from: https://scholarworks.umass.edu/open_access_dissertations/367
5.
Rocha Filho, Kleber Lopes da.
Modelagem Hidrológica da Bacia do Rio Pirajuçara com TOPMODEL, Telemetria e Radar Meteorológico.
Degree: Mestrado, Meteorologia, 2010, University of São Paulo
URL: http://www.teses.usp.br/teses/disponiveis/14/14133/tde-21062013-124917/
;
► A Bacia do Alto Tiete abriga cerca de 50% dos habitantes do Estado de São Paulo e é afetada freqüentemente por eventos de inundações. Uma…
(more)
▼ A Bacia do Alto Tiete abriga cerca de 50% dos habitantes do Estado de São Paulo e é afetada freqüentemente por eventos de inundações. Uma das principais fontes de problemas é a alta impermeabilização devida à ocupação da superfície nas últimas décadas. Um dos seus tributários secundários, a bacia do Rio Pirajuçara se insere neste contexto e sofre com problemas da mesma natureza. A modelagem hidrológica permite uma análise do escoamento superficial nestes ambientes e é útil na previsão de vazões por meio de redes telemétricas e sensoriamento remoto. Entretanto, redes telemétricas apresentam problemas de representatividade espacial e exposição, radares meteorológicos, apesar da maior resolução espaço-temporal das estimativas de precipitação, possuem várias fontes de erros e incertezas. A principal delas se refere à relação ZR. Deste modo, a integração dessas medições e estimativas pode minimizar erros de ambas. O objetivo deste estudo é analisar aspectos hidrológicos da Bacia do Rio Pirajuçara por meio do modelo TOPMODEL com medições de vazão e precipitação disponíveis para 18 eventos monitorados entre outubro de 2008 a outubro de 2009. O modelo TOPMODEL foi calibrado com dez eventos e verificado com os demais. A calibração foi realizada com os dados da telemetria da Bacia do Alto Tietê, radar meteorológico de São Paulo e a combinação de ambos por meio da análise objetiva estatística. Os resultados da calibração indicam que o melhor desempenho foi obtido com radar meteorológico, com número de NASH de 0,51, menor erro quadrático médio e menor viés médio absoluto. A verificação também indicou o mesmo resultado com número de NASH de 0,69. As simulações indicam que apesar da utilização da precipitação média, o modelo TOPMODEL simulou adequadamente cerca de 75% das vazões de alerta. O trabalho evidencia as limitações da telemetria e seus impactos na integração com os dados do radar.
The Alto Tiete watershed is home for about 50% of the inhabitants of São Paulo State and is affected by recurrent flashfloods. One major source of difficulties is the high rate of soil impermeabilization caused by dense surface occupation in the last decades. One of its secondary tributaries, the Pirajussara watershed suffers with similar problems. Hydrological modeling allows the analysis of runoff and other variables in these basins. It also useful for streamflow forecast based on telemetric networks and remote sensing measurements. However, surface networks lack spatial representativity and exposure is a also a issue, weather radars, in spite of their much higher spatial and temporal resolution rainfall estimation, are affect by several sources of errors and uncertainties; the most significant one being the ZR relationship. Thus, the integration of these measurements and estimates can minimize errors of both. The goal of the present work is to analyze the surface hydrology of the Pirajussara watershed based on the TOPMODEL, streamflow and rainfall measurements available for eighteen events between October 2008 and October 2009. The…
Advisors/Committee Members: Pereira Filho, Augusto Jose.
Subjects/Keywords: Hydrologic Modeling; Modelagem Hidrológica; Radar meteorológico; Raingauge Network.; Redes de Superfície; TOPMODEL; TOPMODEL; Weather Radar
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Rocha Filho, K. L. d. (2010). Modelagem Hidrológica da Bacia do Rio Pirajuçara com TOPMODEL, Telemetria e Radar Meteorológico. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/14/14133/tde-21062013-124917/ ;
Chicago Manual of Style (16th Edition):
Rocha Filho, Kleber Lopes da. “Modelagem Hidrológica da Bacia do Rio Pirajuçara com TOPMODEL, Telemetria e Radar Meteorológico.” 2010. Masters Thesis, University of São Paulo. Accessed February 27, 2021.
http://www.teses.usp.br/teses/disponiveis/14/14133/tde-21062013-124917/ ;.
MLA Handbook (7th Edition):
Rocha Filho, Kleber Lopes da. “Modelagem Hidrológica da Bacia do Rio Pirajuçara com TOPMODEL, Telemetria e Radar Meteorológico.” 2010. Web. 27 Feb 2021.
Vancouver:
Rocha Filho KLd. Modelagem Hidrológica da Bacia do Rio Pirajuçara com TOPMODEL, Telemetria e Radar Meteorológico. [Internet] [Masters thesis]. University of São Paulo; 2010. [cited 2021 Feb 27].
Available from: http://www.teses.usp.br/teses/disponiveis/14/14133/tde-21062013-124917/ ;.
Council of Science Editors:
Rocha Filho KLd. Modelagem Hidrológica da Bacia do Rio Pirajuçara com TOPMODEL, Telemetria e Radar Meteorológico. [Masters Thesis]. University of São Paulo; 2010. Available from: http://www.teses.usp.br/teses/disponiveis/14/14133/tde-21062013-124917/ ;

Colorado State University
6.
Chen, Haonan.
Quantitative precipitation estimation for an X-band weather radar network.
Degree: MS(M.S.), Electrical and Computer Engineering, 2013, Colorado State University
URL: http://hdl.handle.net/10217/79026
► Currently, the Next Generation (NEXRAD) radar network, a joint effort of the U.S. Department of Commerce (DOC), Defense (DOD), and Transportation (DOT), provides radar data…
(more)
▼ Currently, the Next Generation (NEXRAD)
radar network, a joint effort of the U.S. Department of Commerce (DOC), Defense (DOD), and Transportation (DOT), provides
radar data with updates every five-six minutes across the United States. This
network consists of about 160 S-band (2.7 to 3.0 GHz)
radar sites. At the maximum NEXRAD range of 230 km, the 0.5 degree
radar beam is about 5.4 km above ground level (AGL) because of the effect of earth curvature. Consequently, much of the lower atmosphere (1-3 km AGL) cannot be observed by the NEXRAD. To overcome the fundamental coverage limitations of today's weather surveillance radars, and improve the spatial and temporal resolution issues, the National Science Foundation Engineering Center (NSF-ERC) for Collaborative Adaptive Sensing of the Atmosphere (CASA) was founded to revolutionize weather sensing in the lower atmosphere by deploying a dense
network of shorter-range, low-power X-band dual-polarization radars. The distributed CASA radars are operating collaboratively to adapt the changing atmospheric conditions. Accomplishments and breakthroughs after five years operation have demonstrated the success of CASA program. Accurate
radar quantitative precipitation estimation (QPE) has been pursued since the beginning of weather
radar. For certain disaster prevention applications such as flash flood and landslide forecasting, the rain rate must however be measured at a high spatial and temporal resolution. To this end, high-resolution
radar QPE is one of the major research activities conducted by the CASA community. A
radar specific differential propagation phase (Kdp)-based QPE methodology has been developed in CASA. Unlike the rainfall estimation based on the power terms such as
radar reflectivity (Z) and differential reflectivity (Zdr), Kdp-based QPE is less sensitive to the path attenuation, drop size distribution (DSD), and
radar calibration errors. The CASA Kdp-based QPE system is also immune to the partial beam blockage and hail contamination. The performance of the CASA QPE system is validated and evaluated by using rain gauges. In CASA's Integrated Project 1 (IP1) test bed in Southwestern Oklahoma, a
network of 20 rainfall gauges is used for cross-comparison. 40 rainfall cases, including severe, multicellular thunderstorms, squall lines and widespread stratiform rain, that happened during years 2007 - 2011, are used for validation and evaluation purpose. The performance scores illustrate that the CASA QPE system is a great improvement compared to the current state-of-the-art. In addition, the high-resolution CASA QPE products such as instantaneous rainfall rate map and hourly rainfall amount measurements can serve as a reliable input for various distributed hydrological models. The CASA QPE system can save lived and properties from hazardous flash floods by incorporating hydraulic and hydrologic models for flood monitoring and warning.
Advisors/Committee Members: Chandrasekar, V. (advisor), Notaros, Branislav M. (committee member), Mielke, Paul W. (committee member).
Subjects/Keywords: polarimetric radar; specific differential phase (KDP) estimation; radar network; quantitative precipitation estimation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Chen, H. (2013). Quantitative precipitation estimation for an X-band weather radar network. (Masters Thesis). Colorado State University. Retrieved from http://hdl.handle.net/10217/79026
Chicago Manual of Style (16th Edition):
Chen, Haonan. “Quantitative precipitation estimation for an X-band weather radar network.” 2013. Masters Thesis, Colorado State University. Accessed February 27, 2021.
http://hdl.handle.net/10217/79026.
MLA Handbook (7th Edition):
Chen, Haonan. “Quantitative precipitation estimation for an X-band weather radar network.” 2013. Web. 27 Feb 2021.
Vancouver:
Chen H. Quantitative precipitation estimation for an X-band weather radar network. [Internet] [Masters thesis]. Colorado State University; 2013. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/10217/79026.
Council of Science Editors:
Chen H. Quantitative precipitation estimation for an X-band weather radar network. [Masters Thesis]. Colorado State University; 2013. Available from: http://hdl.handle.net/10217/79026

Colorado State University
7.
Chen, Haonan.
Radar and satellite observations of precipitation: space time variability, cross-validation, and fusion.
Degree: PhD, Electrical and Computer Engineering, 2017, Colorado State University
URL: http://hdl.handle.net/10217/185786
► Rainfall estimation based on satellite measurements has proven to be very useful for various applications. A number of precipitation products at multiple time and space…
(more)
▼ Rainfall estimation based on satellite measurements has proven to be very useful for various applications. A number of precipitation products at multiple time and space scales have been developed based on satellite observations. For example, the National Oceanic and Atmospheric Administration (NOAA) Climate Prediction Center has developed a morphing technique (i.e., CMORPH) to produce global precipitation products by combining existing space-based observations and retrievals. The CMORPH products are derived using infrared (IR) brightness temperature information observed by geostationary satellites and passive microwave-(PMW) based precipitation retrievals from low earth orbit satellites. Although space-based precipitation products provide an excellent tool for regional, local, and global hydrologic and climate studies as well as improved situational awareness for operational forecasts, their accuracy is limited due to restrictions of spatial and temporal sampling and the applied parametric retrieval algorithms, particularly for light precipitation or extreme events such as heavy rain. In contrast, ground-based
radar is an excellent tool for quantitative precipitation estimation (QPE) at finer space-time scales compared to satellites. This is especially true after the implementation of dual-polarization upgrades and further enhancement by urban scale X-band
radar networks. As a result, ground radars are often critical for local scale rainfall estimation and for enabling forecasters to issue severe weather watches and warnings. Ground-based radars are also used for validation of various space measurements and products. In this study, a new S-band dual-polarization
radar rainfall algorithm (DROPS2.0) is developed that can be applied to the National Weather Service (NWS) operational Weather Surveillance
Radar-1988 Doppler (WSR-88DP)
network. In addition, a real-time high-resolution QPE system is developed for the Engineering Research Center for Collaborative Adaptive Sensing of the Atmosphere (CASA) Dallas-Fort Worth (DFW) dense
radar network, which is deployed for urban hydrometeorological applications via high-resolution observations of the lower atmosphere. The CASA/DFW QPE system is based on the combination of a standard WSR-88DP (i.e., KFWS
radar) and a high-resolution dual-polarization X-band
radar network. The specific
radar rainfall methodologies at Sand X-band frequencies, as well as the fusion methodology merging
radar observations at different temporal resolutions are investigated. Comparisons between rainfall products from the DFW
radar network and rainfall measurements from rain gauges are conducted for a large number of precipitation events over several years of operation, demonstrating the excellent performance of this urban QPE system. The real-time DFW QPE products are extensively used for flood warning operations and hydrological modelling. The high-resolution DFW QPE products also serve as a reliable dataset for validation of Global Precipitation Measurement (GPM) satellite precipitation products. This…
Advisors/Committee Members: Chandrasekar, V. (advisor), Reising, Steven C. (committee member), Cheney, Margaret (committee member), Mielke, Paul W. (committee member).
Subjects/Keywords: machine learning; remote sensing; weather radar network; quantitative precipitation estimation (QPE); dual-polarization radar; satellite
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Chen, H. (2017). Radar and satellite observations of precipitation: space time variability, cross-validation, and fusion. (Doctoral Dissertation). Colorado State University. Retrieved from http://hdl.handle.net/10217/185786
Chicago Manual of Style (16th Edition):
Chen, Haonan. “Radar and satellite observations of precipitation: space time variability, cross-validation, and fusion.” 2017. Doctoral Dissertation, Colorado State University. Accessed February 27, 2021.
http://hdl.handle.net/10217/185786.
MLA Handbook (7th Edition):
Chen, Haonan. “Radar and satellite observations of precipitation: space time variability, cross-validation, and fusion.” 2017. Web. 27 Feb 2021.
Vancouver:
Chen H. Radar and satellite observations of precipitation: space time variability, cross-validation, and fusion. [Internet] [Doctoral dissertation]. Colorado State University; 2017. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/10217/185786.
Council of Science Editors:
Chen H. Radar and satellite observations of precipitation: space time variability, cross-validation, and fusion. [Doctoral Dissertation]. Colorado State University; 2017. Available from: http://hdl.handle.net/10217/185786

University of Alberta
8.
Morales, Jorge M.
Signal processing techniques for radar based subsurface and
through wall imaging.
Degree: MS, Department of Electrical and Computer
Engineering, 2012, University of Alberta
URL: https://era.library.ualberta.ca/files/2f75r853v
► The ground penetrating radar (GPR) and through-wall radar detect and identify a target, by transmitting electromagnetic signals and processing the reflected signal. Migration had been…
(more)
▼ The ground penetrating radar (GPR) and through-wall
radar detect and identify a target, by transmitting electromagnetic
signals and processing the reflected signal. Migration had been a
common method used in radar signal processing to obtain geophysical
images and sketch the reflected data in the correct scatering
position. In this thesis a study about different imaging and
migration techniques, is performed. An improved radar migration
imaging technique is then proposed by taking into account the
effect of a two media environment in the signal velocity and signal
path. The signal reflected coefficients are refocused on a possible
target location or locations, ensuring a strong reflection in the
presence of a target and a low reflection otherwise. The F-K
migration is the baseline technique in our image generation. The
F-K will migrate the focused data and obtain a 2-D matrix with the
approximate scatering coefficients locations with respect to the
depth. This focusing, windowing and F-K process are repeated
several times along a grid, allowing us to reconstruct a sectional
image which will be filtered using the filtering after
backprojection process obtaining a deblurred reconstructed
image.
Subjects/Keywords: Radar, vector network analyzer, F-K migration,
Kirchhoff
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MLA ·
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CSE |
Export
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Manager
APA (6th Edition):
Morales, J. M. (2012). Signal processing techniques for radar based subsurface and
through wall imaging. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/2f75r853v
Chicago Manual of Style (16th Edition):
Morales, Jorge M. “Signal processing techniques for radar based subsurface and
through wall imaging.” 2012. Masters Thesis, University of Alberta. Accessed February 27, 2021.
https://era.library.ualberta.ca/files/2f75r853v.
MLA Handbook (7th Edition):
Morales, Jorge M. “Signal processing techniques for radar based subsurface and
through wall imaging.” 2012. Web. 27 Feb 2021.
Vancouver:
Morales JM. Signal processing techniques for radar based subsurface and
through wall imaging. [Internet] [Masters thesis]. University of Alberta; 2012. [cited 2021 Feb 27].
Available from: https://era.library.ualberta.ca/files/2f75r853v.
Council of Science Editors:
Morales JM. Signal processing techniques for radar based subsurface and
through wall imaging. [Masters Thesis]. University of Alberta; 2012. Available from: https://era.library.ualberta.ca/files/2f75r853v

Georgia Tech
9.
Chai, Ruizhi.
Adaptive power management for cyber-physical system.
Degree: PhD, Electrical and Computer Engineering, 2019, Georgia Tech
URL: http://hdl.handle.net/1853/62644
► The research work investigate the power management techniques for cyber-physical systems based on the model predictive control method. The work starts with a typical cyber-physical…
(more)
▼ The research work investigate the power management techniques for cyber-physical systems based on the model predictive control method. The work starts with a typical cyber-physical system: wireless sensor
network. More specifically, we focus on the supercapacitor powered
radar sensor
network, which is designed to detect random events with guaranteed performance. Supercapacitor online state of charge prediction method is also proposed to support the power management method. Then a novel cyber-physical system, known as implantable device, is investigated. Adaptive power management framework is developed to optimize the application performance while maintaining a safe operating temperature and respecting system constraints. The developed framework can also be applied to more general cyber-physical systems by tailoring the framework formulation according to the system requirement. A black box modeling techniques, which is known as online multistep prediction method, is developed in the framework to capture the complicated thermal dynamics of implantable device. The developed method can also support online prediction of general slow time-varying system.
Advisors/Committee Members: Zhang, Ying (advisor), Weitnauer, Mary Ann (committee member), Ma, Xiaoli (committee member), AlRegib, Ghassan (committee member), Wang, Yang (committee member).
Subjects/Keywords: Power management; Model predictive control; Radar network; Implantable device
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Chai, R. (2019). Adaptive power management for cyber-physical system. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/62644
Chicago Manual of Style (16th Edition):
Chai, Ruizhi. “Adaptive power management for cyber-physical system.” 2019. Doctoral Dissertation, Georgia Tech. Accessed February 27, 2021.
http://hdl.handle.net/1853/62644.
MLA Handbook (7th Edition):
Chai, Ruizhi. “Adaptive power management for cyber-physical system.” 2019. Web. 27 Feb 2021.
Vancouver:
Chai R. Adaptive power management for cyber-physical system. [Internet] [Doctoral dissertation]. Georgia Tech; 2019. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/1853/62644.
Council of Science Editors:
Chai R. Adaptive power management for cyber-physical system. [Doctoral Dissertation]. Georgia Tech; 2019. Available from: http://hdl.handle.net/1853/62644
10.
Ackermann, Brandon.
Archaeological Computer Modeling of Florida's Pre-Columbian Dugout Canoes: Integrating Ground-Penetrating Radar and Geographic Information Science.
Degree: MA, Anthropology, 2019, U of Denver
URL: https://digitalcommons.du.edu/etd/1556
► The focus of this research is the application of two computational methods in modeling pre-Columbian dugout canoe use on Florida's ancient transportation network. Ground-penetrating…
(more)
▼ The focus of this research is the application of two computational methods in modeling pre-Columbian dugout canoe use on Florida's ancient transportation
network. Ground-penetrating
radar (GPR) was used to locate what appear to be multiple unexcavated canoes inundated in the lake-bottom of Lake Santa Fe, a lake in close proximity to Newnans Lake, which contains the largest number of ancient canoes in the world. The identification of multiple canoes in Lake Santa Fe supported the recent idea that this lake may have served as a transit point within Florida's pre-Columbian transportation
network. A Geographic Information System (GIS) was then used to model this navigation
network, using metrics derived from previously recorded canoes. Florida's canoes with both spatial coordinates and radiometric dates were then placed into this navigation
network by calculating transportation routes between canoe locations and contemporaneous archaeological sites interpreted as aggregation centers. These analyses help to demonstrate how archaeological canoes represent more than isolated artifacts, positing an alternative perspective that links canoes to anthropological regarding place and landscape.
Advisors/Committee Members: Lawrence B. Conyers, Ph.D..
Subjects/Keywords: Dugout canoes; Florida archaeology; Geographic information system; Ground penetrating radar; Network analysis; Underwater ground penetrating radar; Anthropology; Archaeological Anthropology
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ackermann, B. (2019). Archaeological Computer Modeling of Florida's Pre-Columbian Dugout Canoes: Integrating Ground-Penetrating Radar and Geographic Information Science. (Thesis). U of Denver. Retrieved from https://digitalcommons.du.edu/etd/1556
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):
Ackermann, Brandon. “Archaeological Computer Modeling of Florida's Pre-Columbian Dugout Canoes: Integrating Ground-Penetrating Radar and Geographic Information Science.” 2019. Thesis, U of Denver. Accessed February 27, 2021.
https://digitalcommons.du.edu/etd/1556.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Ackermann, Brandon. “Archaeological Computer Modeling of Florida's Pre-Columbian Dugout Canoes: Integrating Ground-Penetrating Radar and Geographic Information Science.” 2019. Web. 27 Feb 2021.
Vancouver:
Ackermann B. Archaeological Computer Modeling of Florida's Pre-Columbian Dugout Canoes: Integrating Ground-Penetrating Radar and Geographic Information Science. [Internet] [Thesis]. U of Denver; 2019. [cited 2021 Feb 27].
Available from: https://digitalcommons.du.edu/etd/1556.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Ackermann B. Archaeological Computer Modeling of Florida's Pre-Columbian Dugout Canoes: Integrating Ground-Penetrating Radar and Geographic Information Science. [Thesis]. U of Denver; 2019. Available from: https://digitalcommons.du.edu/etd/1556
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University
11.
Surender, Shrawan Chittoor.
Design and Analysis of Ultra-wideband Ad Hoc Covert Wireless Radar-Comm Networks.
Degree: 2011, Penn State University
URL: https://submit-etda.libraries.psu.edu/catalog/12011
► Recently, the wireless networks research community has taken considerable interest in concurrently utilizing the ultra-wideband (UWB) spectrum with narrow-band systems to implement coexisting and cognitive…
(more)
▼ Recently, the wireless networks research community has taken considerable interest in concurrently utilizing the ultra-wideband (UWB) spectrum with narrow-band systems to implement coexisting and cognitive spectrum solutions. In parallel, multi-channel multi-radio wireless systems are being developed to achieve improved
network capacity by exploiting non-overlapping channel transmissions. Our motivation is to exploit the synergy between the above two approaches, in developing a multi-functional wireless system with significant support to applications of practical relevance. The goal, therefore, is to provide a flexible framework for situational awareness in infrastructure-less covert surveillance circumstances, such as hostage rescue, first-emergency response, natural disaster recovery, or military surveillance. The primary requirements for such applications include the capability for detection of long range targets, distributed computing, and securely communicating the information across a multi-sensor
network. These situations are further characterized by the absence of any central infrastructure, limited spectrum availability, varying topological environments, and growing wireless security concerns.
It is well known that UWB noise
radar achieves covert high-resolution imaging of targets and terrain. The wide bandwidth yields fine range resolution, while the noise waveform provides immunity from detection, interference, and interception. Having multiple noise radars networked with each other can provide significant benefits in target detection and recognition. An ad hoc
network harnessing the combined advantages of UWB
radar sensing and wireless communications is a viable solution to the above requirement. This dissertation, therefore, proposes a unique scheme to modify the UWB noise
radar to supplement it with orthogonal frequency division multiplexing (OFDM) based secure multi-user
network communication capabilities, thus architecting the multi-functional UWB noise-OFDM netted
radar. The salient features of this multi-functional
radar system include surveillance with embedded OFDM-based communications, coexistence, multi-user capability, and physical layer security. Furthermore, with this availability of OFDM's multiple frequencies and a number of radars to share it between, this dissertation solves the problem of multi-user multi-carrier resource allocation by proposing a simple yet fully-distributed and cross-layered channel-diversity-aided algorithm. It constructs a contention-free medium access solution which scales logarithmically with the number of
radar nodes, and dynamically adapts to
network topology changes and wireless channel variations. Building on this contention-free local connectivity, this dissertation also qualitatively proposes a multi-carrier enhancement to the ad hoc on-demand distance vector (AODV) routing protocol for mobile ad hoc networks. Incorporating this enhancement will not only allow the ad hoc
radar network to be resilient to mobility, but also provide routing protocol security,…
Advisors/Committee Members: Chitaranjan Das, Dissertation Advisor/Co-Advisor, Chitaranjan Das, Committee Chair/Co-Chair, Ram Mohan Narayanan, Committee Chair/Co-Chair, George Kesidis, Committee Member, Randy Young, Committee Member.
Subjects/Keywords: ultra-wideband noise radar; communications embedded radar; situational awareness; multi-functional ad hoc radar network; fully-distributed resource allocation; secure ad hoc networks
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Surender, S. C. (2011). Design and Analysis of Ultra-wideband Ad Hoc Covert Wireless Radar-Comm Networks. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/12011
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):
Surender, Shrawan Chittoor. “Design and Analysis of Ultra-wideband Ad Hoc Covert Wireless Radar-Comm Networks.” 2011. Thesis, Penn State University. Accessed February 27, 2021.
https://submit-etda.libraries.psu.edu/catalog/12011.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Surender, Shrawan Chittoor. “Design and Analysis of Ultra-wideband Ad Hoc Covert Wireless Radar-Comm Networks.” 2011. Web. 27 Feb 2021.
Vancouver:
Surender SC. Design and Analysis of Ultra-wideband Ad Hoc Covert Wireless Radar-Comm Networks. [Internet] [Thesis]. Penn State University; 2011. [cited 2021 Feb 27].
Available from: https://submit-etda.libraries.psu.edu/catalog/12011.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Surender SC. Design and Analysis of Ultra-wideband Ad Hoc Covert Wireless Radar-Comm Networks. [Thesis]. Penn State University; 2011. Available from: https://submit-etda.libraries.psu.edu/catalog/12011
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Michigan
12.
Brown, Peter.
Sparse Approximation Accelerators with Spiking Neural-Networks.
Degree: PhD, Electrical and Computer Engineering, 2020, University of Michigan
URL: http://hdl.handle.net/2027.42/155317
► Today's mobile intelligent devices are often limited more by the energy required for data communication than for data processing. Thus, in addition to their traditional…
(more)
▼ Today's mobile intelligent devices are often limited more by the energy required for data communication than for data processing. Thus, in addition to their traditional uses in signal processing, compressed sensing techniques have now found increasing relevance in low power sensing systems. However, basis pursuit denoising (BPDN), the sparse optimization required by such techniques, typically is too computationally intensive to solve directly, so implementations usually resort to greedy pursuit-based methods which approximate the optimization.
Locally competitive algorithms (LCAs), a specific class of spiking recurrent neural-networks, can solve BPDN, but efficiently implementing such networks at scale is difficult. This thesis proposes efficient hardware architectures for BPDN accelerators using the LCA spiking neural-
network.
One such accelerator is a prototype sparse image coder, which achieves unparalleled energy efficiency with custom analog neurons that this work integrates into the digital design flow. At only 48.9 pJ/pixel and 50.1 nJ/encoding, the efficiency of the mixed-signal prototype is double that of an equivalent fully digital architecture. When tasked with encoding images of handwritten digits, the prototype produces sparse codes that are compressed more than 90% while demonstrably preserving features.
Next, a prototype compressed sensing
radar processor boosts the accuracy of target range and velocity estimations by over 6x compared to conventional processing techniques. Capable of producing over 100,000 estimates per second, the prototype improves throughput by 8x and efficiency by 18times over state-of-the-art. Furthermore, due to a unique form of synaptic weight compression, the prototype architecture is the largest hardware realization of a fully-connected LCA neural-
network to date.
Advisors/Committee Members: Flynn, Michael (committee member), Cutler, James W (committee member), Lu, Wei (committee member), Zhang, Zhengya (committee member).
Subjects/Keywords: sparse approximation; spiking neural-network; image sparse coding; compressed sensing radar; Electrical Engineering; Engineering
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Brown, P. (2020). Sparse Approximation Accelerators with Spiking Neural-Networks. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/155317
Chicago Manual of Style (16th Edition):
Brown, Peter. “Sparse Approximation Accelerators with Spiking Neural-Networks.” 2020. Doctoral Dissertation, University of Michigan. Accessed February 27, 2021.
http://hdl.handle.net/2027.42/155317.
MLA Handbook (7th Edition):
Brown, Peter. “Sparse Approximation Accelerators with Spiking Neural-Networks.” 2020. Web. 27 Feb 2021.
Vancouver:
Brown P. Sparse Approximation Accelerators with Spiking Neural-Networks. [Internet] [Doctoral dissertation]. University of Michigan; 2020. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/2027.42/155317.
Council of Science Editors:
Brown P. Sparse Approximation Accelerators with Spiking Neural-Networks. [Doctoral Dissertation]. University of Michigan; 2020. Available from: http://hdl.handle.net/2027.42/155317

New Jersey Institute of Technology
13.
Khalili, Shahrouz.
Cloud-aided wireless systems: communications and radar applications.
Degree: PhD, Electrical and Computer Engineering, 2016, New Jersey Institute of Technology
URL: https://digitalcommons.njit.edu/dissertations/72
► This dissertation focuses on cloud-assisted radio technologies for communication, including mobile cloud computing and Cloud Radio Access Network (C-RAN), and for radar systems. This…
(more)
▼ This dissertation focuses on cloud-assisted radio technologies for communication, including mobile cloud computing and Cloud Radio Access
Network (C-RAN), and for
radar systems.
This dissertation first concentrates on cloud-aided communications. Mobile cloud computing, which allows mobile users to run computationally heavy applications on battery limited devices, such as cell phones, is considered initially. Mobile cloud computing enables the offloading of computation-intensive applications from a mobile device to a cloud processor via a wireless interface. The interplay between offloading decisions at the application layer and physical-layer parameters, which determine the energy and latency associated with the mobile-cloud communication, motivates the inter-layer optimization of fine-grained task offloading across both layers. This problem is modeled by using application call graphs, and the joint optimization of application-layer and physical-layer parameters is carried out via a message passing algorithm by minimizing the total energy expenditure of the mobile user.
The concept of cloud radio is also being considered for the development of two cellular architectures known as Distributed RAN (D-RAN) and C-RAN, whereby the baseband processing of base stations is carried out in a remote Baseband Processing Unit (BBU). These architectures can reduce the capital and operating expenses of dense deployments at the cost of increasing the communication latency. The effect of this latency, which is due to the fronthaul transmission between the Remote Radio Head (RRH) and the BBU, is then studied for implementation of Hybrid Automatic Repeat Request (HARQ) protocols. Specifically, two novel solutions are proposed, which are based on the control-data separation architecture. The trade-offs involving resources such as the number of transmitting and receiving antennas, transmission power and the blocklength of the transmitted codeword, and the performance of the proposed solutions is investigated in analysis and numerical results.
The detection of a target in
radar systems requires processing of the signal that is received by the sensors. Similar to cloud radio access networks in communications, this processing of the signals can be carried out in a remote Fusion Center (FC) that is connected to all sensors via limited-capacity fronthaul links. The last part of this dissertation is dedicated to exploring the application of cloud radio to
radar systems. In particular, the problem of maximizing the detection performance at the FC jointly over the code vector used by the transmitting antenna and over the statistics of the noise introduced by quantization at the sensors for fronthaul transmission is investigated by adopting the information-theoretic criterion of the Bhattacharyya distance and information-theoretic bounds on the quantization rate.
Advisors/Committee Members: Osvaldo Simeone, Alexander Haimovich, Joerg Kliewer.
Subjects/Keywords: Cloud radio access network; Mobile cloud computing; HARQ; Distributed radio access network; Cloud radio multistatic radar; Electrical and Electronics
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Khalili, S. (2016). Cloud-aided wireless systems: communications and radar applications. (Doctoral Dissertation). New Jersey Institute of Technology. Retrieved from https://digitalcommons.njit.edu/dissertations/72
Chicago Manual of Style (16th Edition):
Khalili, Shahrouz. “Cloud-aided wireless systems: communications and radar applications.” 2016. Doctoral Dissertation, New Jersey Institute of Technology. Accessed February 27, 2021.
https://digitalcommons.njit.edu/dissertations/72.
MLA Handbook (7th Edition):
Khalili, Shahrouz. “Cloud-aided wireless systems: communications and radar applications.” 2016. Web. 27 Feb 2021.
Vancouver:
Khalili S. Cloud-aided wireless systems: communications and radar applications. [Internet] [Doctoral dissertation]. New Jersey Institute of Technology; 2016. [cited 2021 Feb 27].
Available from: https://digitalcommons.njit.edu/dissertations/72.
Council of Science Editors:
Khalili S. Cloud-aided wireless systems: communications and radar applications. [Doctoral Dissertation]. New Jersey Institute of Technology; 2016. Available from: https://digitalcommons.njit.edu/dissertations/72
14.
Droit, Christophe.
Système d'interrogation à distance de grandeurs physiques à base de capteurs à ondes élastiques de surface pour mesures paramétriques sur une gamme de température étendue (-196 / +650ºC) : Wireless surface acoustic wave (SAW) interrogation system for parametric measurement on an extended temperature range.
Degree: Docteur es, Sciences pour l'ingénieur, 2013, Besançon
URL: http://www.theses.fr/2013BESA2040
► Ce mémoire présente l’étude et la conception d’électroniques d’interrogation de capteurs passifs de grandeurs physiques à base d’ondes élastiques se propageant à la surface de…
(more)
▼ Ce mémoire présente l’étude et la conception d’électroniques d’interrogation de capteurs passifs de grandeurs physiques à base d’ondes élastiques se propageant à la surface de matériaux (SAW) piézoélectriques mono-cristallins. L’objectif consiste à réaliser une électronique d’interrogation capable de sonder la réponse d’un résonateur SAW au travers d’une liaison radiofréquence (RF) sans fils pour en extraire une information de température. [...] Les électroniques présentées dans ce manuscrit fonctionnent sur l’analyse de la puissance rétro-diffusée par le capteur en s’inspirant de l’architecture d’un analyseur de réseau à balayage de fréquence. Deux électroniques d’interrogation sont présentées. La première utilise une synthèse de fréquence directe. La souplesse de générer un signal RF pour exciter le résonateur a donnée naissance à divers algorithmes pour optimiser les performances de la mesure. La vitesse à laquelle le lecteur est capable de sonder le capteur permet l’interrogation de capteurs placés sur un support mobile (axe de moteur). La résolution de mesure obtenue atteint le dixième de degré Celsius. La seconde électronique vise à réaliser une électronique compacte dans le but de réduire le nombre et la consommation des composants en intégrant les chaînes d’émission et de réception. Cette électronique est construite autour d’un radio-modem : ce composant combinant fonctionnalités RF et numériques est détourné de sa fonction principale de communication numérique dansle but d’interroger un résonateur SAW. Les contraintes associées aux constantes de temps,à l’isolation nécessaire et à l’accès à l’étage de réception d’un radio-modem nécessitent une étude préalable approfondie. L’algorithme développé pour ce composant a nécessité l’utilisation de techniques de traitement RADAR pour obtenir la température résultante d’un capteur différentiel bi -résonateurs. Cette électronique a permis de mesurer une température
This report deals with the study and design of interrogation electronics for probing surface acoustic wave (SAW) transducers used as passive wireless sensors of physical quantities.The basic principle is to develop hardware aimed at probing the response of SAW resonators through a radiofrequency wireless link in order to extract a temperature information. Resonators whose operating frequency is centered on the 433.92 MHz ISM band are developed as part oft he SAWHOT project aimed at measuring high (650 °C) temperatures. SAW resonators load energy when stimulated at resonance frequency. Upon stopping emission, this power is returned as a radiofrequency signal. The presented electronic systems operate on the analysis of thepower returned by the sensor, based on a frequency-sweep network analyzer architecture. Twointerrogation units are presented. The former is based on a Direct Digital Synthesis frequency source : the flexibility of this digital approach allows for probing resonating sensors followings everal algorithms meeting various constraints including measurement speed and resolution.Sub-millisecond…
Advisors/Committee Members: Friedt, Jean-Michel (thesis director), Ballandras, Sylvain (thesis director).
Subjects/Keywords: Capreurs de température; Résonateurs; Ondes élastiques de surface; RADAR; Système d'interrogation; Radiomomodem; Système embarqué; Réseau de capteur; Temperature sensors; Resonators; Surface acoustic wave; RADAR; Interrogation unit; Transceiver; Sensor network; 621.38
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Droit, C. (2013). Système d'interrogation à distance de grandeurs physiques à base de capteurs à ondes élastiques de surface pour mesures paramétriques sur une gamme de température étendue (-196 / +650ºC) : Wireless surface acoustic wave (SAW) interrogation system for parametric measurement on an extended temperature range. (Doctoral Dissertation). Besançon. Retrieved from http://www.theses.fr/2013BESA2040
Chicago Manual of Style (16th Edition):
Droit, Christophe. “Système d'interrogation à distance de grandeurs physiques à base de capteurs à ondes élastiques de surface pour mesures paramétriques sur une gamme de température étendue (-196 / +650ºC) : Wireless surface acoustic wave (SAW) interrogation system for parametric measurement on an extended temperature range.” 2013. Doctoral Dissertation, Besançon. Accessed February 27, 2021.
http://www.theses.fr/2013BESA2040.
MLA Handbook (7th Edition):
Droit, Christophe. “Système d'interrogation à distance de grandeurs physiques à base de capteurs à ondes élastiques de surface pour mesures paramétriques sur une gamme de température étendue (-196 / +650ºC) : Wireless surface acoustic wave (SAW) interrogation system for parametric measurement on an extended temperature range.” 2013. Web. 27 Feb 2021.
Vancouver:
Droit C. Système d'interrogation à distance de grandeurs physiques à base de capteurs à ondes élastiques de surface pour mesures paramétriques sur une gamme de température étendue (-196 / +650ºC) : Wireless surface acoustic wave (SAW) interrogation system for parametric measurement on an extended temperature range. [Internet] [Doctoral dissertation]. Besançon; 2013. [cited 2021 Feb 27].
Available from: http://www.theses.fr/2013BESA2040.
Council of Science Editors:
Droit C. Système d'interrogation à distance de grandeurs physiques à base de capteurs à ondes élastiques de surface pour mesures paramétriques sur une gamme de température étendue (-196 / +650ºC) : Wireless surface acoustic wave (SAW) interrogation system for parametric measurement on an extended temperature range. [Doctoral Dissertation]. Besançon; 2013. Available from: http://www.theses.fr/2013BESA2040

Brno University of Technology
15.
Reich, Bořek.
Zpracování radarového signálu a fúze informací: Radar Signal Processing and Fusion of Information.
Degree: 2020, Brno University of Technology
URL: http://hdl.handle.net/11012/191449
► This bachelor's thesis focuses on fusion of millimetr-wave radar and camera. It proposes appropriate procedure and usage of these sensors for object detection. Object detection…
(more)
▼ This bachelor's thesis focuses on fusion of millimetr-wave
radar and camera. It proposes appropriate procedure and usage of these sensors for object detection. Object detection in this bachelor's thesis is focused on people and provides additional information about detected person. It proposes convolution neural
network as means of person detection and fusion of mmWave
radar and camera data. When person is detected, distance of person from sensors is found in mmWave
radar point cloud. Testing is performed on input data from both sensors in different situations, in poorly lit, unkwonwn scenes, with unknown people etc. Distance measuring is validated with reference data.
Advisors/Committee Members: Zemčík, Pavel (advisor), Maršík, Lukáš (referee).
Subjects/Keywords: fúze informací; milimetrový radar; konvoluční neuronová síť; detekce objekt; detekce osob; information fusion; millimeter-wave radar; convolution neural network; object detection; person detection
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Reich, B. (2020). Zpracování radarového signálu a fúze informací: Radar Signal Processing and Fusion of Information. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/191449
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):
Reich, Bořek. “Zpracování radarového signálu a fúze informací: Radar Signal Processing and Fusion of Information.” 2020. Thesis, Brno University of Technology. Accessed February 27, 2021.
http://hdl.handle.net/11012/191449.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Reich, Bořek. “Zpracování radarového signálu a fúze informací: Radar Signal Processing and Fusion of Information.” 2020. Web. 27 Feb 2021.
Vancouver:
Reich B. Zpracování radarového signálu a fúze informací: Radar Signal Processing and Fusion of Information. [Internet] [Thesis]. Brno University of Technology; 2020. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/11012/191449.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Reich B. Zpracování radarového signálu a fúze informací: Radar Signal Processing and Fusion of Information. [Thesis]. Brno University of Technology; 2020. Available from: http://hdl.handle.net/11012/191449
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
16.
Assali, Camille.
Contribution des radars embarqués à l'étude des stratégies collectives de recherche alimentaire chez les oiseaux marins : Contribution of on board radars to the study of collective foraging strategies in seabirds.
Degree: Docteur es, Sciences de la mer, 2017, Montpellier
URL: http://www.theses.fr/2017MONTT075
► Dans l’océan, les bancs de proies représentent une source d’alimentation ponctuelle. Pour pallier à cela, les oiseaux marins profitent de l’information sociale provenant de conspécifiques,…
(more)
▼ Dans l’océan, les bancs de proies représentent une source d’alimentation ponctuelle. Pour pallier à cela, les oiseaux marins profitent de l’information sociale provenant de conspécifiques, hétérospecifiques, ou bateaux de pêche. Dans cette thèse, nous cherchons à évaluer l’influence de différentes sources d’information sur les stratégies de recherche alimentaire des oiseaux marins en milieu pélagique tropical.Les oiseaux détectent des prédateurs ou des bateaux à des distances dépassant dix kilomètres. Nous étudions donc leur distribution à sub-méso-échelle, ceci grâce à des images d’un radar à bord d’un thonier senneur.Les images radar offrent une visualisation, dans les 30 km autour du navire, de la distribution instantanée de la communauté d’oiseaux en vol et de leurs déplacements. Nous mettons au jour des motifs d’agrégation temporaires, d’une dizaine de kilomètres de diamètre, au sein de la distribution des oiseaux. Les distances entre groupes d’oiseaux sont compatibles avec l’échange d’information au sein de ces agrégations.Une étude plus fine révèle des vols coordonnés de groupes d’oiseaux distants de plusieurs centaines de mètres («râteaux»), suggérant un haut degré de coopération lors de la recherche de proies. Nous questionnons ensuite le degré de perturbation du senneur dans la recherche alimentaire des oiseaux. Les résultats indiquent que les oiseaux marins discriminent les différentes activités du navire.Ce travail constitue, à notre connaissance, la première utilisation des radars embarqués pour l’étude de l’écologie des oiseaux en haute mer, et ouvre nombre de perspectives pour comprendre la dynamique des interactions entre prédateurs marins supérieurs.
In the ocean, prey is patchily distributed. To overcome this challenge, pelagic seabirds benefit from social information from conspecifics, heterospecifics, or fishing boats.As part of this dissertation, we aim at evaluating the influence of different information sources in seabird foraging strategies in the tropical pelagic environment.Seabirds can detect visible predators or boats at distances of over ten kilometres. We thus study the distribution of seabirds at sub-meso-scale, analysing images recorded from a radar on board a tuna purse-seiner. Radar images provide a visualisation of the instantaneous distribution of the in-flight seabird community as well as seabird movements within thirty kilometres of the seiner. We detect over-aggregatedand temporary patterns, spanning about ten kilometers, within flying seabirds’ distribution. Distancesbetween seabird groups are compatible with information exchanges within these aggregations. A finer scale study reveals coordinated flights of seabird groups distant of hundreds of meters from each others (« rakes »), and suggesting a high level of coordination during foraging. We then investigate the potential disturbance induced by the seiner in the seabirds’ foraging network.First results indicate that seabirds can discriminate the different seiner’s activities.To our knowledge, this work is the first…
Advisors/Committee Members: Bez, Nicolas (thesis director), Tremblay, Yann (thesis director).
Subjects/Keywords: Oiseaux marins; Radar; Réseau de recherche alimentaire; Partage d'information; Prédateurs supérieurs; Pêcherie thonière tropicale; Foraging network; Seabirds; Interactions between predators; RADAR images; Tropical tuna fisheries
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Assali, C. (2017). Contribution des radars embarqués à l'étude des stratégies collectives de recherche alimentaire chez les oiseaux marins : Contribution of on board radars to the study of collective foraging strategies in seabirds. (Doctoral Dissertation). Montpellier. Retrieved from http://www.theses.fr/2017MONTT075
Chicago Manual of Style (16th Edition):
Assali, Camille. “Contribution des radars embarqués à l'étude des stratégies collectives de recherche alimentaire chez les oiseaux marins : Contribution of on board radars to the study of collective foraging strategies in seabirds.” 2017. Doctoral Dissertation, Montpellier. Accessed February 27, 2021.
http://www.theses.fr/2017MONTT075.
MLA Handbook (7th Edition):
Assali, Camille. “Contribution des radars embarqués à l'étude des stratégies collectives de recherche alimentaire chez les oiseaux marins : Contribution of on board radars to the study of collective foraging strategies in seabirds.” 2017. Web. 27 Feb 2021.
Vancouver:
Assali C. Contribution des radars embarqués à l'étude des stratégies collectives de recherche alimentaire chez les oiseaux marins : Contribution of on board radars to the study of collective foraging strategies in seabirds. [Internet] [Doctoral dissertation]. Montpellier; 2017. [cited 2021 Feb 27].
Available from: http://www.theses.fr/2017MONTT075.
Council of Science Editors:
Assali C. Contribution des radars embarqués à l'étude des stratégies collectives de recherche alimentaire chez les oiseaux marins : Contribution of on board radars to the study of collective foraging strategies in seabirds. [Doctoral Dissertation]. Montpellier; 2017. Available from: http://www.theses.fr/2017MONTT075

University of Arizona
17.
Romero, Ric.
MATCHED WAVEFORM DESIGN AND ADAPTIVE BEAMSTEERING IN COGNITIVE RADAR APPLICATIONS
.
Degree: 2010, University of Arizona
URL: http://hdl.handle.net/10150/194499
► Cognitive Radar (CR) is a paradigm shift from a traditional radar system in that previous knowledge and current measurements obtained from the radar channel are…
(more)
▼ Cognitive
Radar (CR) is a paradigm shift from a traditional
radar system in that previous knowledge and current measurements obtained from the
radar channel are used to form a probabilistic understanding of its environment. Moreover, CR incorporates this probabilistic knowledge into its task priorities to form illumination and probing strategies thereby rendering it a closed-loop system. Depending on the hardware's capabilities and limitations, there are various degrees of freedom that a CR may utilize. Here we will concentrate on two: temporal, where it is manifested in adaptive waveform design; and spatial, where adaptive beamsteering is used for search-and-track functions. This work is divided into three parts. First, comprehensive theory of SNR and mutual information (MI) matched waveform design in signal-dependent interference is presented. Second, these waveforms are used in a closed-loop
radar platform performing target discrimination and target class identification, where the extended targets are either deterministic or stochastic. The CR's probabilistic understanding is updated via the Bayesian framework. Lastly, we propose a multiplatform CR
network for integrated search-and-track application. The two
radar platforms cooperate in developing a four-dimensional probabilistic understanding of the channel. The two radars also cooperate in forming dynamic spatial illumination strategy, where beamsteering is matched to the channel uncertainty to perform the search function. Once a target is detected and a track is initiated, track information is integrated into the beamsteering strategy as part of CR's task prioritization.
Advisors/Committee Members: Goodman, Nathan (advisor), Gehm, Michael (committeemember), Ryan, William (committeemember).
Subjects/Keywords: Beamsteering;
Cognitive Radar;
Cognitive Radar Network;
Matched Illumination;
Target Recogniiton;
Track and Search
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Romero, R. (2010). MATCHED WAVEFORM DESIGN AND ADAPTIVE BEAMSTEERING IN COGNITIVE RADAR APPLICATIONS
. (Doctoral Dissertation). University of Arizona. Retrieved from http://hdl.handle.net/10150/194499
Chicago Manual of Style (16th Edition):
Romero, Ric. “MATCHED WAVEFORM DESIGN AND ADAPTIVE BEAMSTEERING IN COGNITIVE RADAR APPLICATIONS
.” 2010. Doctoral Dissertation, University of Arizona. Accessed February 27, 2021.
http://hdl.handle.net/10150/194499.
MLA Handbook (7th Edition):
Romero, Ric. “MATCHED WAVEFORM DESIGN AND ADAPTIVE BEAMSTEERING IN COGNITIVE RADAR APPLICATIONS
.” 2010. Web. 27 Feb 2021.
Vancouver:
Romero R. MATCHED WAVEFORM DESIGN AND ADAPTIVE BEAMSTEERING IN COGNITIVE RADAR APPLICATIONS
. [Internet] [Doctoral dissertation]. University of Arizona; 2010. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/10150/194499.
Council of Science Editors:
Romero R. MATCHED WAVEFORM DESIGN AND ADAPTIVE BEAMSTEERING IN COGNITIVE RADAR APPLICATIONS
. [Doctoral Dissertation]. University of Arizona; 2010. Available from: http://hdl.handle.net/10150/194499

York University
18.
Taylor, Brandon Mason.
Direct Comparisons of Polarimetric C-Band and S-Band Radar in Snow.
Degree: MSc -MS, Earth & Space Science, 2018, York University
URL: http://hdl.handle.net/10315/35034
► The Canadian Weather Radar Network is currently undergoing an upgrade to po- larimetric, S-Band radar systems. Forecasting experiences in Canada with the legacy C-Band radars…
(more)
▼ The Canadian Weather
Radar Network is currently undergoing an upgrade to po- larimetric, S-Band
radar systems. Forecasting experiences in Canada with the legacy C-Band radars lends to the idea that the narrow beamwidth of C-Band sys- tems is preferential for nowcasting the typical shallow lake-effect snow event. This idea is tested by comparing moments from King City
radar, just north of Toronto, to the neighboring Buffalo, NY WSR-88D. By transforming the
radar data from spherical coordinates to the Cartesian coordinate system, the two radars can be compared directly. Objective analysis indicates that the spatial patterns of reflec- tivity are very similiar, with King maintaining the obvious advantage in resolving fine scale features of lake-effect snow bands through a narrow physical beamwidth. Also, it is shown that comparatively, the mean reflectivity values obtained through this method are similiar, but King City maintains a slight advantage over Buffalo in detecting shallow snow-squalls. In regards to differential reflectivity, a case by case comparison is performed to determine any event biases from the King City
radar. With biases removed, both radars indicate similiar mean values of differential re- flectivity, which agrees with theoretical expectations. Results also indicate that the bulk hydrometeor type in synoptic snowfalls tend towards pristine crystals, while lake-effect events tend towards aggregated snow.
Advisors/Committee Members: Taylor, Peter (advisor), Isaac, George (advisor).
Subjects/Keywords: Meteorology; Weather Radar; NEXRAD; Canadian Weather Radar Network; Environment and Climate Change Canada; Snow; Lake-Effect Snow; Snow Squall; Lake Ontario; Objective Analysis; Open Source Software; S-Band; C-Band
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Taylor, B. M. (2018). Direct Comparisons of Polarimetric C-Band and S-Band Radar in Snow. (Masters Thesis). York University. Retrieved from http://hdl.handle.net/10315/35034
Chicago Manual of Style (16th Edition):
Taylor, Brandon Mason. “Direct Comparisons of Polarimetric C-Band and S-Band Radar in Snow.” 2018. Masters Thesis, York University. Accessed February 27, 2021.
http://hdl.handle.net/10315/35034.
MLA Handbook (7th Edition):
Taylor, Brandon Mason. “Direct Comparisons of Polarimetric C-Band and S-Band Radar in Snow.” 2018. Web. 27 Feb 2021.
Vancouver:
Taylor BM. Direct Comparisons of Polarimetric C-Band and S-Band Radar in Snow. [Internet] [Masters thesis]. York University; 2018. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/10315/35034.
Council of Science Editors:
Taylor BM. Direct Comparisons of Polarimetric C-Band and S-Band Radar in Snow. [Masters Thesis]. York University; 2018. Available from: http://hdl.handle.net/10315/35034
19.
Karvonen, Juha.
Compaction of C-Band Synthetic Aperture Radar Based Sea Ice Information for Navigation in the Baltic Sea.
Degree: 2007, Helsinki University of Technology
URL: http://lib.tkk.fi/Diss/2006/isbn9512284723/
► In this work operational sea ice synthetic aperture radar (SAR) data products were improved and developed. A SAR instrument is transmitting electromagnetic radiation at certain…
(more)
▼ In this work operational sea ice synthetic aperture
radar (SAR) data products were improved and developed. A SAR instrument is transmitting electromagnetic radiation at certain wavelengths and measures the radiation which is scattered back towards the instrument from the target, in our case sea and sea ice. The measured backscattering is converted to an image describing the target area through complex signal processing. The images, however, differ from optical images, i.e. photographs, and their visual interpretation is not straightforward. The main idea in this work has been to deliver the essential SAR-based sea ice information to end-users (typically on ships) in a compact and user-friendly format. The operational systems at Finnish Institute of Marine Research (FIMR) are currently based on the data received from a Canadian SAR-satellite, Radarsat-1. The operational sea ice classification, developed by the author with colleagues, has been further developed. One problem with the SAR data is typically that the backscattering varies depending on the incidence angle. The incidence angle is the angle in which the transmitted electromagnetic wave meets the target surface and it varies within each SAR image and between different SAR images depending on the measuring geometry. To improve this situation, an incidence angle correction algorithm to normalize the backscattering over the SAR incidence angle range for Baltic Sea ice has been developed as part of this work. The algorithm is based on SAR backscattering statistics over the Baltic Sea. To locate different sea ice areas in SAR images, a SAR segmentation algorithm based on pulse-coupled neural networks has been developed and tested. The parameters have been tuned suitable for the operational data in use at FIMR. The sea ice classification is based on this segmentation and the classification is segment-wise rather than pixel-wise. To improve SAR-based distinguishing between sea ice and open water an open water detection algorithm based on segmentation and local autocorrelation has been developed. Also ice type classification based on higher-order statistics and independent component analysis have been studied to get an improved SAR-based ice type classification. A compression algorithm for compressing sea ice SAR data for visual use has been developed. This algorithm is based on the wavelet decomposition, zero-tree structure and arithmetic coding. Also some properties of the human visual system were utilized. This algorithm was developed to produce smaller compressed SAR images, with a reasonable visual quality. The transmission of the compressed images to ships with low-speed data connections in reasonable time is then possible. One of the navigationally most important sea ice parameters is the ice thickness. SAR-based ice thickness estimation has been developed and evaluated as part of this work. This ice thickness estimation method uses the ice thickness history derived from digitized ice charts, made daily at the Finnish Ice Service, as its input, and updates…
Advisors/Committee Members: Helsinki University of Technology, Department of Computer Science and Engineering, Laboratory of Computer and Information Science.
Subjects/Keywords: synthetic aperture radar; SAR; sea ice; classification; pulse-coupled neural network; PCNN; wavelets; image compression; independent component analysis
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Karvonen, J. (2007). Compaction of C-Band Synthetic Aperture Radar Based Sea Ice Information for Navigation in the Baltic Sea. (Thesis). Helsinki University of Technology. Retrieved from http://lib.tkk.fi/Diss/2006/isbn9512284723/
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):
Karvonen, Juha. “Compaction of C-Band Synthetic Aperture Radar Based Sea Ice Information for Navigation in the Baltic Sea.” 2007. Thesis, Helsinki University of Technology. Accessed February 27, 2021.
http://lib.tkk.fi/Diss/2006/isbn9512284723/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Karvonen, Juha. “Compaction of C-Band Synthetic Aperture Radar Based Sea Ice Information for Navigation in the Baltic Sea.” 2007. Web. 27 Feb 2021.
Vancouver:
Karvonen J. Compaction of C-Band Synthetic Aperture Radar Based Sea Ice Information for Navigation in the Baltic Sea. [Internet] [Thesis]. Helsinki University of Technology; 2007. [cited 2021 Feb 27].
Available from: http://lib.tkk.fi/Diss/2006/isbn9512284723/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Karvonen J. Compaction of C-Band Synthetic Aperture Radar Based Sea Ice Information for Navigation in the Baltic Sea. [Thesis]. Helsinki University of Technology; 2007. Available from: http://lib.tkk.fi/Diss/2006/isbn9512284723/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
20.
Arnold, Benjamin T.
The Effects of Antenna Coupling in a MIMO Radar System.
Degree: MS, 2016, Brigham Young University
URL: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=6966&context=etd
► A mathematical model for a multiple-input multiple-output radar system is presented. The model is used to track signals through the system in order to identify…
(more)
▼ A mathematical model for a multiple-input multiple-output radar system is presented. The model is used to track signals through the system in order to identify the impact of antenna array mutual coupling on radar system performance. Simulations using the model provide quantitative assessment of the performance degradation as a function of antenna coupling strength. Specifically, the results show that coupling can cause a target to appear at an angle notably different than its actual angle and can cause an increase in the side lobe level. A compensation technique is presented that completely removes these effects for practical levels of coupling. However, it is highly sensitive to inaccurate measurements of the system as well as time-varying system components. The technique may degrade the system performance further in some cases. Matching network design techniques and their impact on the system performance are also examined. For some levels of coupling they provide marginal improvement but may decrease system performance for other levels.
Subjects/Keywords: MIMO systems; radar; mutual coupling; matching network
…radar system. This framework, derived using network theory, includes a transmitter consisting… …7
2.3
Timing for a radar system with two transmit antennas and two receive antennas. 10… …2.4
Timing for the virtual array of a radar system with two transmit antennas
and two… …radar and target in simulation. . . . . . . . . . . . . . . . . . . .
22
4.3
Result from… …Network Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . .
37
6.2
The amount the…
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Arnold, B. T. (2016). The Effects of Antenna Coupling in a MIMO Radar System. (Masters Thesis). Brigham Young University. Retrieved from https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=6966&context=etd
Chicago Manual of Style (16th Edition):
Arnold, Benjamin T. “The Effects of Antenna Coupling in a MIMO Radar System.” 2016. Masters Thesis, Brigham Young University. Accessed February 27, 2021.
https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=6966&context=etd.
MLA Handbook (7th Edition):
Arnold, Benjamin T. “The Effects of Antenna Coupling in a MIMO Radar System.” 2016. Web. 27 Feb 2021.
Vancouver:
Arnold BT. The Effects of Antenna Coupling in a MIMO Radar System. [Internet] [Masters thesis]. Brigham Young University; 2016. [cited 2021 Feb 27].
Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=6966&context=etd.
Council of Science Editors:
Arnold BT. The Effects of Antenna Coupling in a MIMO Radar System. [Masters Thesis]. Brigham Young University; 2016. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=6966&context=etd

The Ohio State University
21.
DE, DEBRAJ.
Case Studies in Low Power Motion Sensing.
Degree: MS, Computer Science and Engineering, 2009, The Ohio State University
URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1250733474
► Wireless Sensor Networks hold great promise as an enabling technology for a variety of applications. Considering for instance wireless networks of motion sensors, which…
(more)
▼ Wireless Sensor Networks hold great promise
as an enabling technology for a variety of applications.
Considering for instance wireless networks of motion sensors, which
have diverse application in defense, mobility related technologies,
clinical studies etc. Performance metrices for such applications
include probabilities of event detection, false alarm,
classification and mis-classification, detection latency, and
lifetime of sensor. In this thesis we address research issues
associated with these metrics, in particular the aspects of
accurate sensing and power management. Our research focuses on two
case studies in motion sensing: presence detection and activity
monitoring. Presence detection is a primitive of
applications of motion sensing such as room occupancy detection.
Towards the goal of developing a reliable and long lived conference
room occupancy sensing system, we use a Pyroelectric InfraRed (PIR)
sensor enabled Trio mote. We develop an occupancy sensing algorithm
that shows reliability with no observed false alarms. Power
management is achieved through a number of features, including duty
cycling and dynamic stabilization. Proper selection of sampling
speed and duration enable fast and reliable event detection. The
resulting duty cycling algorithm yields an achievable lifetime of
68 days. Based on our analysis we also propose a modification in
hardware design for improved lifetime. Activity
monitoring is a primitive of applications of motion sensing such as
tracking human activity level. Towards the goal of developing an
energy efficient framework for reliable and accurate human activity
level indexing, we use a coherent pulsed doppler
radar sensor. We
characterize two classes of human motion: uniform gait and milling.
Reliability comes with a discrimination algorithm that
distinguishes between the motions of zero, one or many people. The
algorithm shows rare occurrences of false alarms. We formulated an
index of human activity level that proportionally represents motion
activity intensity. We propose a power management technique that
adapts to activity intensity in order to save energy for sensing.
Based on our research, we identify further improvements for more
energy efficient, reliable and accurate activity
indexing.
Advisors/Committee Members: Arora, Anish (Advisor).
Subjects/Keywords: Computer Science; sensor; network; signal; human; activity; radar; PIR
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
DE, D. (2009). Case Studies in Low Power Motion Sensing. (Masters Thesis). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1250733474
Chicago Manual of Style (16th Edition):
DE, DEBRAJ. “Case Studies in Low Power Motion Sensing.” 2009. Masters Thesis, The Ohio State University. Accessed February 27, 2021.
http://rave.ohiolink.edu/etdc/view?acc_num=osu1250733474.
MLA Handbook (7th Edition):
DE, DEBRAJ. “Case Studies in Low Power Motion Sensing.” 2009. Web. 27 Feb 2021.
Vancouver:
DE D. Case Studies in Low Power Motion Sensing. [Internet] [Masters thesis]. The Ohio State University; 2009. [cited 2021 Feb 27].
Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1250733474.
Council of Science Editors:
DE D. Case Studies in Low Power Motion Sensing. [Masters Thesis]. The Ohio State University; 2009. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1250733474

Brno University of Technology
22.
Putna, Lukáš.
Predikce deště pomocí meteorologického radaru: Rain Prediction Using Meteo-Radar.
Degree: 2018, Brno University of Technology
URL: http://hdl.handle.net/11012/54491
► This work deals with the concept and implementation of short term rain prediction system using meteo-radar. Some basic methods are mentioned and then artificial neural…
(more)
▼ This work deals with the concept and implementation of short term rain prediction system using meteo-
radar. Some basic methods are mentioned and then artificial neural networks are discussed and used for solution. It is proposed how the prediction system using neural networks works. The process of preparing
radar data, training neural
network with the data and a few scoring methods are discussed. There are shown some experimental results and several improvements are devised at the end of this paper.
Advisors/Committee Members: Szőke, Igor (advisor), Grézl, František (referee).
Subjects/Keywords: Predikce deště; krátkodobá předpověď počasí; umělá neuronová síť; meteorologický radar; zpracování obrazu; trénování neuronových sítí.; Rain prediction; short term weather prediction; artificial neural network; meteorological radar; image processing; neural network training.
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Putna, L. (2018). Predikce deště pomocí meteorologického radaru: Rain Prediction Using Meteo-Radar. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/54491
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):
Putna, Lukáš. “Predikce deště pomocí meteorologického radaru: Rain Prediction Using Meteo-Radar.” 2018. Thesis, Brno University of Technology. Accessed February 27, 2021.
http://hdl.handle.net/11012/54491.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Putna, Lukáš. “Predikce deště pomocí meteorologického radaru: Rain Prediction Using Meteo-Radar.” 2018. Web. 27 Feb 2021.
Vancouver:
Putna L. Predikce deště pomocí meteorologického radaru: Rain Prediction Using Meteo-Radar. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/11012/54491.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Putna L. Predikce deště pomocí meteorologického radaru: Rain Prediction Using Meteo-Radar. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/54491
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Indian Institute of Science
23.
Sudhendra, Chandrika.
A Novel Chip Resistor Spacecloth For Radar Absorbing Materials.
Degree: MSc Engg, Faculty Of Engineering, 2007, Indian Institute of Science
URL: http://etd.iisc.ac.in/handle/2005/280
► Spacecloth design and development is vital and crucial in Radar Absorbing Materials (RAM) for achieving Low Observability in an Aircraft or an Unmanned Air Vehicle(UAV).…
(more)
▼ Spacecloth design and development is vital and crucial in
Radar Absorbing Materials (RAM) for achieving Low Observability in an Aircraft or an Unmanned Air Vehicle(UAV). The RAM design translates into the spacecloth design. The spacecloths form the constituent layers in a broadband Jaumann absorber in which case they have to be designed for various values of surface resistivity. The design specifications of spacecloth(s) in RAMS is well understood and documented in literature. But the design of spacecloth hitherto, has been the domain of materials' scientists wherein the specified properties of the spacecloth are achieved by an iterative, trial and error process, by mixing various constituents in different proportions to get the design specified surface resistivity in the final end-product. In an effort to bridge this gap, a novel spacecloth for RAM applications is proposed in the thesis. It is proposed that a repetitive geometrical grid
network of chip resistors simulates spacecloth. The sheet resistivity of the spacecloth is derived by analyzing various geometries like square, rectangle, triangle and hexagonal grids. The transmission and reflection loss for the chip resistor spacecloth is derived. The design of chip resistor spacecloths for operation at S and C bands is given followed by experimental verification using waveguide simulator experiments. Numerical study of multilayer RAM has been carried out with exponential taper variation of surface resistivities for constituent spacecloth layers and design curves are given for multilayer RAM both for normal and oblique incidence for TE and TM polarizations.
Advisors/Committee Members: Mohanty, Atanu (advisor).
Subjects/Keywords: Radar Materials; Spacecloth Design; Radar Absorbing Materials (RAM); Multilayer RAM Design; Chip Resistor Network; Chip Resistor Spacecloth; Unmanned Air Vehicle (UAV); Radar Engineering
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Sudhendra, C. (2007). A Novel Chip Resistor Spacecloth For Radar Absorbing Materials. (Masters Thesis). Indian Institute of Science. Retrieved from http://etd.iisc.ac.in/handle/2005/280
Chicago Manual of Style (16th Edition):
Sudhendra, Chandrika. “A Novel Chip Resistor Spacecloth For Radar Absorbing Materials.” 2007. Masters Thesis, Indian Institute of Science. Accessed February 27, 2021.
http://etd.iisc.ac.in/handle/2005/280.
MLA Handbook (7th Edition):
Sudhendra, Chandrika. “A Novel Chip Resistor Spacecloth For Radar Absorbing Materials.” 2007. Web. 27 Feb 2021.
Vancouver:
Sudhendra C. A Novel Chip Resistor Spacecloth For Radar Absorbing Materials. [Internet] [Masters thesis]. Indian Institute of Science; 2007. [cited 2021 Feb 27].
Available from: http://etd.iisc.ac.in/handle/2005/280.
Council of Science Editors:
Sudhendra C. A Novel Chip Resistor Spacecloth For Radar Absorbing Materials. [Masters Thesis]. Indian Institute of Science; 2007. Available from: http://etd.iisc.ac.in/handle/2005/280
24.
Fasoula, A.
2D Modeling and Classification of Extended Objects in a Network of HRR Radars.
Degree: 2011, Ipskamp Drukkers
URL: http://resolver.tudelft.nl/uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97
;
urn:NBN:nl:ui:24-uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97
;
urn:NBN:nl:ui:24-uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97
;
http://resolver.tudelft.nl/uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97
► In this thesis, the modeling of extended objects with low-dimensional representations of their 2D geometry is addressed. The ultimate objective is the classification of the…
(more)
▼ In this thesis, the modeling of extended objects with low-dimensional representations of their 2D geometry is addressed. The ultimate objective is the classification of the objects using libraries of such compact 2D object models that are much smaller than in the state-of-the-art classification schemes based on (High Range Resolution) HRR data. The considered input information consists of HRR datasets measured at widely separated aspect angles of the object, thus being highly sparse in the angular dimension. Such input datasets are supposedly available from a
network of scanning surveillance radars.
Advisors/Committee Members: Van Genderen, P., Ligthart, L..
Subjects/Keywords: radar network; high resolution; 2D object modeling; radar target classification; parametric estimation; sparse representation
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Fasoula, A. (2011). 2D Modeling and Classification of Extended Objects in a Network of HRR Radars. (Doctoral Dissertation). Ipskamp Drukkers. Retrieved from http://resolver.tudelft.nl/uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97 ; urn:NBN:nl:ui:24-uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97 ; urn:NBN:nl:ui:24-uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97 ; http://resolver.tudelft.nl/uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97
Chicago Manual of Style (16th Edition):
Fasoula, A. “2D Modeling and Classification of Extended Objects in a Network of HRR Radars.” 2011. Doctoral Dissertation, Ipskamp Drukkers. Accessed February 27, 2021.
http://resolver.tudelft.nl/uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97 ; urn:NBN:nl:ui:24-uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97 ; urn:NBN:nl:ui:24-uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97 ; http://resolver.tudelft.nl/uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97.
MLA Handbook (7th Edition):
Fasoula, A. “2D Modeling and Classification of Extended Objects in a Network of HRR Radars.” 2011. Web. 27 Feb 2021.
Vancouver:
Fasoula A. 2D Modeling and Classification of Extended Objects in a Network of HRR Radars. [Internet] [Doctoral dissertation]. Ipskamp Drukkers; 2011. [cited 2021 Feb 27].
Available from: http://resolver.tudelft.nl/uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97 ; urn:NBN:nl:ui:24-uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97 ; urn:NBN:nl:ui:24-uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97 ; http://resolver.tudelft.nl/uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97.
Council of Science Editors:
Fasoula A. 2D Modeling and Classification of Extended Objects in a Network of HRR Radars. [Doctoral Dissertation]. Ipskamp Drukkers; 2011. Available from: http://resolver.tudelft.nl/uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97 ; urn:NBN:nl:ui:24-uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97 ; urn:NBN:nl:ui:24-uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97 ; http://resolver.tudelft.nl/uuid:2d6048d2-e006-4859-b3e2-24b71d7e5e97

Brno University of Technology
25.
Kalina, Ladislav.
Obvody pro tvarování svazku antény v pásmu L: Beam Shaping Circuits for L Band Antenna.
Degree: 2018, Brno University of Technology
URL: http://hdl.handle.net/11012/65297
► This thesis contains design of beamforming network designed for passive radar antennas. The first part contains theory of passive radars and beamforming networks. The next…
(more)
▼ This thesis contains design of beamforming
network designed for passive
radar antennas. The first part contains theory of passive radars and beamforming networks. The next part implies design of beamforming
network at the block digram level. Then are choosed circuits for amplitude and phase control, including the design of control communication. It follows by realization of IQ phase shifter and his automatic measurement. Based on this results is phase shifter adjusted and PCB of 2x2 beamforming
network is designed. Last part includes design of control application (Matlab) and control program for STM32F407VG microcontroller.
Advisors/Committee Members: Urbanec, Tomáš (advisor), Pítra, Kamil (referee).
Subjects/Keywords: Řízení svazku antény; fázovací článek; obvody tvarování svazku; null-steering; pasivní radar; automatizované měření; IQ signály; ARM; VGA; LUT; SCPI; VISA; Matlab; Altium Designer.; Beamforming; phase shifter; beamforming network; null-steering; passive radar; automatic measurements; IQ signals; ARM; VGA; LUT; SCPI; VISA; Matlab; Altium Designer.
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Kalina, L. (2018). Obvody pro tvarování svazku antény v pásmu L: Beam Shaping Circuits for L Band Antenna. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/65297
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):
Kalina, Ladislav. “Obvody pro tvarování svazku antény v pásmu L: Beam Shaping Circuits for L Band Antenna.” 2018. Thesis, Brno University of Technology. Accessed February 27, 2021.
http://hdl.handle.net/11012/65297.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kalina, Ladislav. “Obvody pro tvarování svazku antény v pásmu L: Beam Shaping Circuits for L Band Antenna.” 2018. Web. 27 Feb 2021.
Vancouver:
Kalina L. Obvody pro tvarování svazku antény v pásmu L: Beam Shaping Circuits for L Band Antenna. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/11012/65297.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kalina L. Obvody pro tvarování svazku antény v pásmu L: Beam Shaping Circuits for L Band Antenna. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/65297
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
26.
Samad, Sarah.
Contactless detection of cardiopulmonary activity for a person in different scenarios : Détection sans contact de l'activité cardio-pulmonaire d'une personne dans différents scenarios.
Degree: Docteur es, Electronique et Télécommunications, 2017, Rennes, INSA; Université libanaise
URL: http://www.theses.fr/2017ISAR0030
► De nos jours, les mesures sans contact du signal cardiaque du patient en utilisant le radar Doppler a suscité un intérêt considérable chez les chercheurs,…
(more)
▼ De nos jours, les mesures sans contact du signal cardiaque du patient en utilisant le radar Doppler a suscité un intérêt considérable chez les chercheurs, surtout que les électrocardiographes traditionnels avec des électrodes fixes ne sont pas pratiques dans certains cas comme les nourrissons ou les victimes de brûlure. En raison de la sensibilité des microondes à de petits mouvements, le radar a été utilisé comme système de surveillance de l'activité cardio-pulmonaire humaine. Selon l'effet Doppler, un signal de fréquence constante est transmis vers la cible ayant un déplacement variable puis réfléchi. Le signal réfléchit possède une variation de phase par rapport au temps. Dans notre cas, la cible est la poitrine du patient; Le signal réfléchi de la poitrine de la personne contient le signal cardiorespiratoire. Le système est basé sur un analyseur de réseau vectoriel et deux antennes cornet. Le S21 est calculé en utilisant un analyseur de réseau. La variation de phase de S21 contient des informations de l'activité cardio-pulmonaire. Des techniques de traitement sont utilisées pour extraire le signal cardiaque de la variation de la phase de S21 . Cette thèse présente une étude comparative dans la détection des signaux de battements cardiaques au niveau de la puissance rayonnée et de la fréquence opérationnelle. Les puissances rayonnées sont comprises entre 3 et -17 dBm et les fréquences opérationnelles utilisées sont 2.4, 5.8, 1 0 et 20 GHz. Cela permet de spécifier la fréquence opérationnelle optimale, qui donne un compromis entre la puissance minimale émise ainsi que la complexité du système de mesure. De plus, une étude comparative entre plusieurs méthodes de traitement de signal est proposée pour extraire la meilleure méthode qui permet de mesurer le signal cardiaque et par suite extraire ses paramètres. Des techniques de traitement basées sur des transformées en ondelettes ou le filtrage classique sont présentées et utilisées afin de faire une comparaison entre elles. Le paramètre extrait dans cette thèse est le taux des battements cardiaques. Les mesures ont été effectuées simultanément avec un électrocardiographe afin de valider les mesures du signal cardiaque. Puisque la personne peut se déplacer d'une pièce à une autre à l'intérieur de son domicile, des mesures des quatre côtés de la personne et derrière un mur sont réalisées. Ajoutons une approche de modélisation fondée sur la mesure cardio-respiratoire pour une personne qui exerce une marche en avant. De plus, une comparaison entre un système à micro-ondes à simple et deux antennes pour une personne qui prend son souffle est effectuée afin de tester la précision du système à antenne unique par rapport au a la deuxième. Par suite, des mesures sont effectuées pour une personne qui respire en utilisant un système à une seule antenne.
Nowadays, contact-less monitoring patient's heartbeat using Doppler radar has attracted considerable interest of researchers, especially when the traditional electrocardiogram (ECG) measurements with fixed electrodes is not…
Advisors/Committee Members: Zein, Ghaïs El (thesis director), Sadek-Hage Chehade, Sawsan (thesis director).
Subjects/Keywords: Signal cardio-respiratoire; Surveillance cardiaque; Continuous-wave doppler radar; Cardio-respiratory signal; Heartbeat rate; Contactless measurements; Waveless decomposition; Filtering; Vector network analyser; Electrocardiograph; 621
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Samad, S. (2017). Contactless detection of cardiopulmonary activity for a person in different scenarios : Détection sans contact de l'activité cardio-pulmonaire d'une personne dans différents scenarios. (Doctoral Dissertation). Rennes, INSA; Université libanaise. Retrieved from http://www.theses.fr/2017ISAR0030
Chicago Manual of Style (16th Edition):
Samad, Sarah. “Contactless detection of cardiopulmonary activity for a person in different scenarios : Détection sans contact de l'activité cardio-pulmonaire d'une personne dans différents scenarios.” 2017. Doctoral Dissertation, Rennes, INSA; Université libanaise. Accessed February 27, 2021.
http://www.theses.fr/2017ISAR0030.
MLA Handbook (7th Edition):
Samad, Sarah. “Contactless detection of cardiopulmonary activity for a person in different scenarios : Détection sans contact de l'activité cardio-pulmonaire d'une personne dans différents scenarios.” 2017. Web. 27 Feb 2021.
Vancouver:
Samad S. Contactless detection of cardiopulmonary activity for a person in different scenarios : Détection sans contact de l'activité cardio-pulmonaire d'une personne dans différents scenarios. [Internet] [Doctoral dissertation]. Rennes, INSA; Université libanaise; 2017. [cited 2021 Feb 27].
Available from: http://www.theses.fr/2017ISAR0030.
Council of Science Editors:
Samad S. Contactless detection of cardiopulmonary activity for a person in different scenarios : Détection sans contact de l'activité cardio-pulmonaire d'une personne dans différents scenarios. [Doctoral Dissertation]. Rennes, INSA; Université libanaise; 2017. Available from: http://www.theses.fr/2017ISAR0030
27.
Wang, Lei.
Learning to Estimate Sea Ice Concentration from SAR Imagery.
Degree: 2016, University of Waterloo
URL: http://hdl.handle.net/10012/10954
► Through the growing interest in the Arctic for shipping, mining and climate research, large-scale high quality ice concentration is of great interest. Due to the…
(more)
▼ Through the growing interest in the Arctic for shipping, mining and climate research, large-scale high quality ice concentration is of great interest. Due to the unavailability of suitable ice concentration estimation algorithms, ice concentration maps are interpreted from synthetic aperture radar (SAR) images manually by ice experts for operational uses. An automatic ice concentration estimation algorithm is required for accurate large-scale ice mapping. In this thesis, a set of algorithms are developed aiming at operational ice concentration estimation from SAR images.
The major difficulty in designing a robust algorithm for ice concentration estimation from SAR images is the constantly changing SAR image features of ice and water in time and location. This difficulty is addressed by learning features instead of designing features from SAR images. A set of convolutional neural network based ice concentration estima- tion algorithms are developed to learn multi-scale SAR image features and simultaneously regress ice concentration from the learned image features. We first demonstrated the capa- bility of CNNs in ice concentration estimation from SAR images when trained using image analysis charts as ground truth. Then the model is further improved by taking into account the errors in the image analysis charts. Ice concentration estimates with improved robust- ness to training samples errors, accuracy and scale of details are obtained. The robustness of the developed methods are further demonstrated in the melt season of the Beaufort Sea, where reasonable ice concentration estimates are acquired. In order to reduce the model training time, it is desired to reuse existing models. The model transferability is evaluated and suggestions on using existing models to accelerate the training process are given, which is shown to reduce the training time by over 10 times in our case.
Subjects/Keywords: Sea ice concentration; convolutional neural network; synthetic aperture radar
…structures . . . . . . . . . . . . . . . . . . . .
52
3.17 Network with three convolutional… …layers improves the estimation for new ice
compared to network with two convolutional layers… …Nomenclature
α
Momentum
ȳ
Mean of y
θ0
Neural network weights of the previous EM iteration
θm… …All weights of a neural network at iteration m
Ck
kth convolutional filter in a… …deviation
F
Function of the network
f
Activation function
K
Number of convolutional filters…
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Wang, L. (2016). Learning to Estimate Sea Ice Concentration from SAR Imagery. (Thesis). University of Waterloo. Retrieved from http://hdl.handle.net/10012/10954
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):
Wang, Lei. “Learning to Estimate Sea Ice Concentration from SAR Imagery.” 2016. Thesis, University of Waterloo. Accessed February 27, 2021.
http://hdl.handle.net/10012/10954.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Wang, Lei. “Learning to Estimate Sea Ice Concentration from SAR Imagery.” 2016. Web. 27 Feb 2021.
Vancouver:
Wang L. Learning to Estimate Sea Ice Concentration from SAR Imagery. [Internet] [Thesis]. University of Waterloo; 2016. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/10012/10954.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Wang L. Learning to Estimate Sea Ice Concentration from SAR Imagery. [Thesis]. University of Waterloo; 2016. Available from: http://hdl.handle.net/10012/10954
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Manitoba
28.
Islam, Md Rashedul.
Improved quantitative estimation of rainfall by radar.
Degree: Civil Engineering, 2006, University of Manitoba
URL: http://hdl.handle.net/1993/190
► Although higher correlation between gauge and radar at hourly or daily accumulations are reported, it is rarely observed at higher time resolution (e.g. 10 -minute).…
(more)
▼ Although higher correlation between gauge and
radar at hourly or daily accumulations are reported, it is rarely observed at higher time resolution (e.g. 10 -minute). This study investigates six major rainfall events in year 2000 in the greater Winnipeg area with durations varying from four to nine hours. The correlation between gauge and
radar measurements of precipitation is found to be only 0.3 at 10-minute resolution and 0.55 at hourly resolution using Marshall-Palmer’s Z-R relationship (Z=200R1.6). The rainfalls are classified into convective and stratiform regions using Steiner et al. (1995)’s algorithm and two different Z-R relationships are tested to minimize the error associated with the variability of drop-size-distribution, however no improvement is observed. The performance of the artificial neural
network is explored as a reflectivity-rainfall mapping function. Three different types of neural networks are explored: the back propagation
network, the radial basis function
network, and the generalized regression neural
network. It is observed that the neural network’s performance is better than the Z-R relationship to estimate the rainfall events which was used for training and validation (correlation 0.67). When this
network is tested on a new rainfall its performance is found quite similar to that obtained from the Z-R relationship (correlation 0.33). Based on this observation neural
network may be recommended as a post-processing tool but may not be very useful for operational purposes - at least as used in this study. Variability in weather and precipitation scenarios affects the
radar measurements which apparently makes it impossible for the neural
network or the Z-R relationship to show consistent performance at every rainfall event. To account for variability in weather and rainfall scenarios conventional correction schemes for attenuation and hail contamination are applied and a trajectory model is developed to account for rainfall advection due to wind drift. The trajectory model uses velocity obtained from the single-doppler observation. A space-time interpolation technique is applied to generate reflectivity maps at one-minute resolution based on the direction obtained from the correlation based tracking algorithm. The trajectory model uses the generated reflectivity maps having one-minute resolution which help to account for the travel time by the rainfall mass to reach to the ground. It was found that the attenuation correction algorithm adversely increases the reflectivity. This study assumes that the higher reflectivity caused by hail contaminated regions is one reason for the overestimation in the attenuation correction process. It was observed that the hail capping method applied prior to the attenuation correction algorithm helps to improve the situation. A statistical expression to account for radome attenuation is also developed. It is observed that the correlation between the gauge and the
radar measurement is 0.81 after applying the various algorithms. Although Marshall-Palmer’s…
Advisors/Committee Members: Dr. Rasmussen, Peter (Civil Engineering) (supervisor), Dr. Shalaby, Ahmed (Civil Engineering).
Subjects/Keywords: radar; rainfall; neural-network; wind-drift; Z-R; attenuation; hail; tracking
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Islam, M. R. (2006). Improved quantitative estimation of rainfall by radar. (Masters Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/190
Chicago Manual of Style (16th Edition):
Islam, Md Rashedul. “Improved quantitative estimation of rainfall by radar.” 2006. Masters Thesis, University of Manitoba. Accessed February 27, 2021.
http://hdl.handle.net/1993/190.
MLA Handbook (7th Edition):
Islam, Md Rashedul. “Improved quantitative estimation of rainfall by radar.” 2006. Web. 27 Feb 2021.
Vancouver:
Islam MR. Improved quantitative estimation of rainfall by radar. [Internet] [Masters thesis]. University of Manitoba; 2006. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/1993/190.
Council of Science Editors:
Islam MR. Improved quantitative estimation of rainfall by radar. [Masters Thesis]. University of Manitoba; 2006. Available from: http://hdl.handle.net/1993/190

Virginia Tech
29.
Tua-Martinez, Carlos Gustavo.
Behavioral Model and Predistortion Algorithm to Mitigate Interpulse Instabilities Induced by Gallium Nitride Power Amplifiers in Multifunction Radars.
Degree: PhD, Electrical Engineering, 2017, Virginia Tech
URL: http://hdl.handle.net/10919/74445
► The incorporation of Gallium Nitride (GaN) Power Amplifiers (PAs) into future high power aperture radar systems is certain; however, the introduction of this technology into…
(more)
▼ The incorporation of Gallium Nitride (GaN) Power Amplifiers (PAs) into future high power aperture
radar systems is certain; however, the introduction of this technology into multifunction
radar systems will present new challenges to
radar engineers. This dissertation describes a broad investigation into amplitude and phase transients produced by GaN PAs when they are excited with multifunction
radar waveforms. These transients are the result of self-heating electrothermal memory effects and are manifested as interpulse instabilities that can negatively impact the coherent processing of multiple pulses. A behavioral model based on a Foster
network topology has been developed to replicate the measured amplitude and phase transients accurately. This model has been used to develop a digital predistortion technique that successfully mitigates the impact of the transients. The Moving Target Indicator (MTI) Improvement Factor and the Root Mean Square (RMS) Pulse-to-Pulse Stability are used as metrics to assess the impact of the transients on
radar system performance and to test the effectiveness of a novel digital predistortion concept.
Advisors/Committee Members: Pratt, Timothy J. (committeechair), Zaghloul, Amir I. (committeechair), Silva, Luiz A. (committee member), Mullins, Donald E. (committee member), Buehrer, R. Michael (committee member), Foreman, Terry L. (committee member).
Subjects/Keywords: III-V semiconductors; gallium compounds; mean square error methods; power amplifiers; synthetic aperture radar; Foster network topology; GaN; GaN power amplifiers; amplitude transients; behavioral model; digital predistortion technique; gallium nitri
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Tua-Martinez, C. G. (2017). Behavioral Model and Predistortion Algorithm to Mitigate Interpulse Instabilities Induced by Gallium Nitride Power Amplifiers in Multifunction Radars. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/74445
Chicago Manual of Style (16th Edition):
Tua-Martinez, Carlos Gustavo. “Behavioral Model and Predistortion Algorithm to Mitigate Interpulse Instabilities Induced by Gallium Nitride Power Amplifiers in Multifunction Radars.” 2017. Doctoral Dissertation, Virginia Tech. Accessed February 27, 2021.
http://hdl.handle.net/10919/74445.
MLA Handbook (7th Edition):
Tua-Martinez, Carlos Gustavo. “Behavioral Model and Predistortion Algorithm to Mitigate Interpulse Instabilities Induced by Gallium Nitride Power Amplifiers in Multifunction Radars.” 2017. Web. 27 Feb 2021.
Vancouver:
Tua-Martinez CG. Behavioral Model and Predistortion Algorithm to Mitigate Interpulse Instabilities Induced by Gallium Nitride Power Amplifiers in Multifunction Radars. [Internet] [Doctoral dissertation]. Virginia Tech; 2017. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/10919/74445.
Council of Science Editors:
Tua-Martinez CG. Behavioral Model and Predistortion Algorithm to Mitigate Interpulse Instabilities Induced by Gallium Nitride Power Amplifiers in Multifunction Radars. [Doctoral Dissertation]. Virginia Tech; 2017. Available from: http://hdl.handle.net/10919/74445

Brno University of Technology
30.
Kašpar, Petr.
Návrh 3D Vivaldiho anténní řady pro radarové aplikace: Design of 3D Vivaldi antenna array for radar applications.
Degree: 2019, Brno University of Technology
URL: http://hdl.handle.net/11012/38828
► This master thesis deals with a design of Vivaldi antenna due to its broadband properties suitable for radar applications. The folding of single Vivaldi antenna…
(more)
▼ This master thesis deals with a design of Vivaldi antenna due to its broadband properties suitable for
radar applications. The folding of single Vivaldi antenna element into 2D antenna array we achieved required radiation properties. Appropriate design of feeding structure realized by SIW technology we obtained suppression of side lobes and deflection of the main lobe. The work also includes design of 3D Vivaldi antenna array. Modeling, simulation and optimization of antenna array were performed in CST Microwave Studio.
Advisors/Committee Members: Puskely, Jan (advisor), Pitra,, Kamil (referee).
Subjects/Keywords: Radarové aplikace; Vivaldiho anténa; vlnovod integrovaný do substrátu; vychylovaní laloku; hřebenová napájecí síť; Radar application; Vivaldi antenna; substrate integrated waveguide; beam steering; comb feeding network
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APA (6th Edition):
Kašpar, P. (2019). Návrh 3D Vivaldiho anténní řady pro radarové aplikace: Design of 3D Vivaldi antenna array for radar applications. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/38828
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):
Kašpar, Petr. “Návrh 3D Vivaldiho anténní řady pro radarové aplikace: Design of 3D Vivaldi antenna array for radar applications.” 2019. Thesis, Brno University of Technology. Accessed February 27, 2021.
http://hdl.handle.net/11012/38828.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Kašpar, Petr. “Návrh 3D Vivaldiho anténní řady pro radarové aplikace: Design of 3D Vivaldi antenna array for radar applications.” 2019. Web. 27 Feb 2021.
Vancouver:
Kašpar P. Návrh 3D Vivaldiho anténní řady pro radarové aplikace: Design of 3D Vivaldi antenna array for radar applications. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Feb 27].
Available from: http://hdl.handle.net/11012/38828.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Kašpar P. Návrh 3D Vivaldiho anténní řady pro radarové aplikace: Design of 3D Vivaldi antenna array for radar applications. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/38828
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
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