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Texas A&M University
1.
Louichon, Franck.
Multi-user CDMA detectors for its applications.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-L685 
► In this thesis, we consider different detectors and compare their performance and complexity when several users are sharing the same frequencies in a synchronous coherent…
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▼ In this thesis, we consider different detectors and compare their performance and complexity when several users are sharing the same frequencies in a synchronous coherent code-division multiple-access (CDMA) system. Practical issues for a possible implementation in ITS applications are considered and modeled. Solutions to the near-far problem and to the degradation of the performance due to an increasing number of users are proposed through various detection algorithms and the introduction of a new multistage detector. Also, less degradation of the performance can be achieved for multipath and fading channels with these new detectors. The choice of spreading sequences, inherent to the spread spectrum CDMA technique, is directly linked to the performance of the receivers and is discussed in detail. Finally, in light of the simulation results, we conclude that some of the CDMA detectors presented in this thesis can possibly be implemented for ITS applications because of their acceptable complexity and overall performance in a multi-user environment.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Louichon, F. (2012). Multi-user CDMA detectors for its applications. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-L685
Chicago Manual of Style (16th Edition):
Louichon, Franck. “Multi-user CDMA detectors for its applications.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-L685.
MLA Handbook (7th Edition):
Louichon, Franck. “Multi-user CDMA detectors for its applications.” 2012. Web. 26 Feb 2020.
Vancouver:
Louichon F. Multi-user CDMA detectors for its applications. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-L685.
Council of Science Editors:
Louichon F. Multi-user CDMA detectors for its applications. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-L685
Texas A&M University
2.
Madhavan, Sridhar.
Quantification of periventricular lesions from MR brain images.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-M3392
► Periventricular lesions are associated with hyperintensity in Magnetic Resonance brain images of Acquired Immunodeficiency Syndrome patients. The objective of this research has been the development…
(more)
▼ Periventricular lesions are associated with hyperintensity in Magnetic Resonance brain images of Acquired Immunodeficiency Syndrome patients. The objective of this research has been the development of a user-friendly software to quantify such lesions for the purpose of studying ways to prevent or reverse this disease. Basically this work has led to a tool for the medical community to quantify periventricular lesions which are currently assessed in a qualitative manner. Provisions are made for a radiologist to input lesion seedpoints interactively. A comprehensive feature vector is generated and then used as the homogeneity criterion in a region growing algorithm. Two different stopping criteria, average Mahalanobis distance and neural network, are evaluated as part of the region growing algorithm. The results obtained indicate that the perpendicular region growing with the neural network stopping criterion provides the closest match to the manual segmentation of lesions. A Graphical-User-Interface is designed in order to have a clinically usable software environment.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Madhavan, S. (2012). Quantification of periventricular lesions from MR brain images. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-M3392
Chicago Manual of Style (16th Edition):
Madhavan, Sridhar. “Quantification of periventricular lesions from MR brain images.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-M3392.
MLA Handbook (7th Edition):
Madhavan, Sridhar. “Quantification of periventricular lesions from MR brain images.” 2012. Web. 26 Feb 2020.
Vancouver:
Madhavan S. Quantification of periventricular lesions from MR brain images. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-M3392.
Council of Science Editors:
Madhavan S. Quantification of periventricular lesions from MR brain images. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-M3392
Texas A&M University
3.
Mennenga, Menno.
Multi-objective routing in ATM networks.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-M4635
► In this thesis, we extend the schedulable region concept from a mission control for one link only to a network-wide routing and admission approach in…
(more)
▼ In this thesis, we extend the schedulable region concept from a mission control for one link only to a network-wide routing and admission approach in ATM networks. We assume that four traffic types traverse the network, i.e., constant bit-rate traffic, voice traffic, video traffic and data traffic. Each of these traffic types has its own Quality of Service constraints which is the first, objective that needs to be satisfied. Besides guaranteeing QOS, the network facilities should be used efficiently. Therefore, our second objective is to maximize either the number of routed calls or the total amount of routed bandwidth. We show that despite our approach may lead to a conservative estimation of the actual Quality of Service, it performs significantly better than bandwidth reservation, the resource allocation method that is most commonly used in current ATM networks, since more calls can be admitted into the network. Several different combinations of a routing strategy (min-hop routing, max-min routing, and exponential routing) with admission strategies (complete sharing, hold back n) are tested for efficiency, using an extensive set of simulations. We found that exponential routing combined with the' complete sharing admission strategy performs best. Using the hold back n admission strategy results in a smaller network utilization, however, the admission rate of high-bandwidth calls (video, data) is improved.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Mennenga, M. (2012). Multi-objective routing in ATM networks. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-M4635
Chicago Manual of Style (16th Edition):
Mennenga, Menno. “Multi-objective routing in ATM networks.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-M4635.
MLA Handbook (7th Edition):
Mennenga, Menno. “Multi-objective routing in ATM networks.” 2012. Web. 26 Feb 2020.
Vancouver:
Mennenga M. Multi-objective routing in ATM networks. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-M4635.
Council of Science Editors:
Mennenga M. Multi-objective routing in ATM networks. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-M4635
Texas A&M University
4.
Moore, Stephen W.
The development of a computerized battery simulator optimized for use in the ELPH 2.0 simulation environment.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-M667
► The objective of the research was to develop and integrate a computerized mathematical simulator of an electrochemical energy storage system into the ELectrically Peaking Hybrid…
(more)
▼ The objective of the research was to develop and integrate a computerized mathematical simulator of an electrochemical energy storage system into the ELectrically Peaking Hybrid (ELPH) vehicle computing environment. The ELPH simulation package is an interactive computer simulation environment that has been developed for the prediction and evaluation of performance of electric vehicles (EVs) and hybrid electric vehicles (HEVs). A battery simulator was developed that conforms to the ELPH computing environment restrictions and a variety of standards to interface properly with the other vehicular component simulators such as the engine, transmission, power electronics, and motor drive. Numerous historical and published battery models were studied and the most applicable and desirable characteristics were noted in each of them and were used in the development of the simulator. The simulator is based on empirically derived parameters and electrical equations, and employs a voltage time rate of change correction factor for voltage tracking accuracy during small time steps. Simulator results are compared to actual vehicle data acquired in Texas A&M University's Electorsource Horizon-based hybrid electric vehicle. I
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Moore, S. W. (2012). The development of a computerized battery simulator optimized for use in the ELPH 2.0 simulation environment. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-M667
Chicago Manual of Style (16th Edition):
Moore, Stephen W. “The development of a computerized battery simulator optimized for use in the ELPH 2.0 simulation environment.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-M667.
MLA Handbook (7th Edition):
Moore, Stephen W. “The development of a computerized battery simulator optimized for use in the ELPH 2.0 simulation environment.” 2012. Web. 26 Feb 2020.
Vancouver:
Moore SW. The development of a computerized battery simulator optimized for use in the ELPH 2.0 simulation environment. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-M667.
Council of Science Editors:
Moore SW. The development of a computerized battery simulator optimized for use in the ELPH 2.0 simulation environment. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-M667
Texas A&M University
5.
Preston, Jason Dillard.
Rapid carrier phase acquisition for large QAM signal constellations.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-P73
► This work addresses the problem of rapid carrier-phase acquisition for QAM constellations, and specifically for the 32-QAM, 64-QAM, 128-QAM, and 256-QAM constellations, operating over an…
(more)
▼ This work addresses the problem of rapid carrier-phase acquisition for QAM constellations, and specifically for the 32-QAM, 64-QAM, 128-QAM, and 256-QAM constellations, operating over an AWGN channel. It is assumed that there is no frequency or symbol timing error. Seven algorithms in all are derived and tested. The first is the maximum-likelihood (ML) estimator, which is found to be accurate but impractical to implement. A suboptimal ML type estimator is derived from the ML algorithm and is found to be simpler but still impractical. The power-law (PL) estimator is derived as the low SNR limit of the ML estimator, and is found to be very simple, but having poor error performance. A threshold is added to the PL algorithm and the performance is improved, but not enough for rapid phase acquisition for most cases. An algorithm is derived specifically for use on the cross constellations which further improves performance, but this algorithm is superseded by an estimator based on a trellis structure and the Viterbi Algorithm which is developed. Finally a suboptimal version of the trellis algorithm is developed which reduces the complexity of the trellis algorithm by two-thirds. Both the trellis and the suboptimal trellis algorithm perform well enough for phase acquisition and are simple and practical to implement.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Preston, J. D. (2012). Rapid carrier phase acquisition for large QAM signal constellations. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-P73
Chicago Manual of Style (16th Edition):
Preston, Jason Dillard. “Rapid carrier phase acquisition for large QAM signal constellations.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-P73.
MLA Handbook (7th Edition):
Preston, Jason Dillard. “Rapid carrier phase acquisition for large QAM signal constellations.” 2012. Web. 26 Feb 2020.
Vancouver:
Preston JD. Rapid carrier phase acquisition for large QAM signal constellations. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-P73.
Council of Science Editors:
Preston JD. Rapid carrier phase acquisition for large QAM signal constellations. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-P73
Texas A&M University
6.
Rajkotwala, Farida.
Real-time implementation of a vision based automatic push button.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-R345
► This thesis presents a real-time digital signal Processing (DSP) system to detect the presence of pedestrians waiting to cross an intersection. Such a system would…
(more)
▼ This thesis presents a real-time digital signal Processing (DSP) system to detect the presence of pedestrians waiting to cross an intersection. Such a system would improve both pedestrian and vehicle flow considering that almost one third of people do not press the push button and there is no need to activate a walk time if no pedestrian is present. This system employs videoimaging as its sensing mechanism since many sites have already been equipped with videocameras and hence no additional hardware installation is required for its deployment. A pedestrian detection algorithm is developed and implemented on a TMS32OC40 DSP chip such that videosignals captured from an actual intersection are processed in real-time. Basically, the algorithm consists of a background update and a background subtraction procedure applied to image blocks. The background update is done in order to cope with brightness changes that occur in actual outdoor scenes. In addition, waiting and moving pedestrians are distinguished by using the temporal intensity changes of image blocks. The DSP implementation involves full utilization of the available resources of the DSP architecture to minimize the processing time. This implementation has led to a detection accuracy of more than 90% at a processing rate of 3 frames per second.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA ·
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APA (6th Edition):
Rajkotwala, F. (2012). Real-time implementation of a vision based automatic push button. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-R345
Chicago Manual of Style (16th Edition):
Rajkotwala, Farida. “Real-time implementation of a vision based automatic push button.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-R345.
MLA Handbook (7th Edition):
Rajkotwala, Farida. “Real-time implementation of a vision based automatic push button.” 2012. Web. 26 Feb 2020.
Vancouver:
Rajkotwala F. Real-time implementation of a vision based automatic push button. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-R345.
Council of Science Editors:
Rajkotwala F. Real-time implementation of a vision based automatic push button. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-R345
Texas A&M University
7.
Ramakrishnan, Venkatakrishnan.
IC performance prediction system.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-R362
► In a mixed-product semiconductor foundry, optimization of product binning, packaging, product quantity control and rapid problem diagnosis are all critical to economic success. Binning is…
(more)
▼ In a mixed-product semiconductor foundry, optimization of product binning, packaging, product quantity control and rapid problem diagnosis are all critical to economic success. Binning is the placement of chips into several different specification categories. Binning has traditionally been done on the basis of performance (e.g. ,speed, operating range). For maximum profit, it must be accurately determined which specification bin a chip ties in. The integrated circuit pack-age makes up a large fraction of total product cost, and has a major influence on product performance and reliability. To minimize packaging costs, packaging has to be selected according to how a chip will be binned. Performance prediction is also important for product control and when the chip is to be packaged away from the foundry, such as when it will be used in Multi-Chip Module (MCM). The difficulty in achieving these goals is that there is limited data available at the time each decision must be made. For example, performance banning and package selection must be done after the water-level electrical test, but the water test is not a thorough performance test. The current practice is to accept some loss of profits due to imperfect predictions that result in under-specified and over-packaged products, additional failures in final test, a mismatch of product supply and demand, or additional yield loss. The IC performance prediction system (IPPS) proposed in this research will use primarily wafer-level functional and parametric electrical test data, supplemented with in-line and in-situ data to make performance predictions. Based on the waterlevel parametric test, we will predict chip performance in order to select the appropriate package. Predictions that fall outside acceptable limits will be used for process diagnosis purposes. We will use the predicted performance to determine additional wafer starts necessary to meet product demand. This can be coupled with equipment utilization to predict and minimize fabrication costs.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Ramakrishnan, V. (2012). IC performance prediction system. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-R362
Chicago Manual of Style (16th Edition):
Ramakrishnan, Venkatakrishnan. “IC performance prediction system.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-R362.
MLA Handbook (7th Edition):
Ramakrishnan, Venkatakrishnan. “IC performance prediction system.” 2012. Web. 26 Feb 2020.
Vancouver:
Ramakrishnan V. IC performance prediction system. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-R362.
Council of Science Editors:
Ramakrishnan V. IC performance prediction system. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-R362
Texas A&M University
8.
Randolph, Marc A.
A software based, 13 kbits/ s real-time internet codec.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-R3653
► Bandwidth usage is a prime concern to many on the Internet, especially for users on low bit rate channels. As video conferencing becomes more popular,…
(more)
▼ Bandwidth usage is a prime concern to many on the Internet, especially for users on low bit rate channels. As video conferencing becomes more popular, the need for efficient software based compression of video and audio becomes more important. This work develops a scalable, real-time, software based speech codec for use on desktop computers. The system is based on subband coding, adaptive prediction, and Huffman coding, and is capable of bit rates below 13 kbits/s for communications quality audio. The quality may be 'scaled" up by allocating additional bits to the subbands. This coder has been successfully implemented in real-time on a Sun Sparc 10 platform.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA ·
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APA (6th Edition):
Randolph, M. A. (2012). A software based, 13 kbits/ s real-time internet codec. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-R3653
Chicago Manual of Style (16th Edition):
Randolph, Marc A. “A software based, 13 kbits/ s real-time internet codec.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-R3653.
MLA Handbook (7th Edition):
Randolph, Marc A. “A software based, 13 kbits/ s real-time internet codec.” 2012. Web. 26 Feb 2020.
Vancouver:
Randolph MA. A software based, 13 kbits/ s real-time internet codec. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-R3653.
Council of Science Editors:
Randolph MA. A software based, 13 kbits/ s real-time internet codec. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-R3653
Texas A&M University
9.
Sarker, Nripendra Nath.
Simulation of radiographic image data transfer and video conferencing over local area networks.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S26
► One of the objectives of any network installation is to retrieve files from file servers with minimum possible delay. Within three LAN configurations considered in…
(more)
▼ One of the objectives of any network installation is to retrieve files from file servers with minimum possible delay. Within three LAN configurations considered in this study, a variable number of servers was considered to vary the service, rate of the server pool. The arrival rate was varied to simulate the number of users and their frequency of requests. A random number of requests for magnified images were considered to articulate the individual choices and requirements. The LAN transmission capacities considered were 1 and 10 Mbps. The objective was then to find the delay for different combinations of these variables. The possibility of video conferencing was also studied along with the radiographic image transfer. The objective of this work was to develop a more generalized simulation model for packetized data transfer over LAN. The possiblity of video conferencing was studied in the Ethernet LAN with local file storage system assuming a probability of 0.01 that a requester may initiate a video conference after studying the magnified images obtained from the file servers. The Ethernet LAN with local storage system gives the lowest delay since each user may the magnified images only. The FDDI LAN works better than the Ethernet LAN with remote file servers because the packet sizes of the FDDI LAN are larger than that of the Ethernet LANS. The packetization time was assumed to be fixed irrespective of the packet sizes. Video conferencing puts excessive demand on the transmission media. As a result it affects all the traffic very seriously and also it does not guarantee quality video image delivery. This simulation can be effectively used to design a network for local area data transfer. The necessary inputs are: number of users, frequency of requests, size and kind of data transfer, and transmission rate of the media. This simulation will give a rational choice on the number of servers necessary for the LAN to be worked on. Although this simulation model was developed for a conceptualized hospital situation, this can be adapted easily to any other similar situations. The main work involved in this thesis is the implementation of a generalized encoder and decoder for BCH codes. The special feature of the implementation is that it works over all finite fields and their extensions as opposed to earlier implementations in literature involving only finite field extensions of the binary field. These generalized codes are attractive mainly because of their rate advantage. Interest in these codewords mapped into modified M-PSK constellations has been generated because of availability of a new method to make a code rotationally invariant. The purpose of this work is to measure the performance of these codes in an Additive White Gaussian Noise ( AWGN ) channel. The effect of Rayleigh fading on the performance has also been simulated for some codes. The new technique of making the M-PSK modulation scheme rotationally invariant is also presented. Chapter I gives an introduction to finite field algebra. Chapter 11 provides…
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Sarker, N. N. (2012). Simulation of radiographic image data transfer and video conferencing over local area networks. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S26
Chicago Manual of Style (16th Edition):
Sarker, Nripendra Nath. “Simulation of radiographic image data transfer and video conferencing over local area networks.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S26.
MLA Handbook (7th Edition):
Sarker, Nripendra Nath. “Simulation of radiographic image data transfer and video conferencing over local area networks.” 2012. Web. 26 Feb 2020.
Vancouver:
Sarker NN. Simulation of radiographic image data transfer and video conferencing over local area networks. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S26.
Council of Science Editors:
Sarker NN. Simulation of radiographic image data transfer and video conferencing over local area networks. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S26
Texas A&M University
10.
Sarwar, Abul Kalam.
Engineering design automation tool for yield learning model for IC packaging.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S274
► The leading edge of semiconductor manufacturing is the high yield production of semiconductor devices of which integrated circuit packaging has a continuous increasing demand along…
(more)
▼ The leading edge of semiconductor manufacturing is the high yield production of semiconductor devices of which integrated circuit packaging has a continuous increasing demand along with integrated circiut functionality. IC packaging manufacturing is subject to a yield learning cycle similar to that of IC manufacturing. The time-to-market period should therefore be optimally small. This necessitates the development of a yield prediction tool for package yield learning and thus optimizing the cycle time. In this research a methodology to predict the yield for package assemblies and a design automation tool has been developed and implemented. This yield learning model along with the automation tool has been used as a management tool for making yield predictions, resource allocations, understanding operating practices and providing what-if analysis. We developed a nonlinear spreadsheet-based model and tuned to each manufacturing line. We demonstrated the use of these models in industry to accurately predict the yield as a function of factor values, using a very small amount of data. We have experimentally validated our approach using the actual yield values obtained in the assembly line. Also, this research focuses on the cycle time issues for the yield model that we have developed for the packaging line. The number of lots processed in the line experience a time for which they are processed before they go on to the final stage This includes the processing time and the defect diagnosis time, which we have termed in as the defect diagnosis cycle time. We have suggested an algorithm for the determination of this defect diagnosis cycle time in the assembly line taking into consideration the waiting time issues in the line and its relation to the yield learning curve. We are interested here in this time because it in effect increases the rate of learning. The delay caused due to a defect, is cased by the variability in the operating environment. To significantly reduce the assembly cycle times, one must reduce that variability[1].
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Sarwar, A. K. (2012). Engineering design automation tool for yield learning model for IC packaging. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S274
Chicago Manual of Style (16th Edition):
Sarwar, Abul Kalam. “Engineering design automation tool for yield learning model for IC packaging.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S274.
MLA Handbook (7th Edition):
Sarwar, Abul Kalam. “Engineering design automation tool for yield learning model for IC packaging.” 2012. Web. 26 Feb 2020.
Vancouver:
Sarwar AK. Engineering design automation tool for yield learning model for IC packaging. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S274.
Council of Science Editors:
Sarwar AK. Engineering design automation tool for yield learning model for IC packaging. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S274
Texas A&M University
11.
Schroeder, Charles Grant.
Increased network efficiency for variable rate video streams in an Integrated Services Packet Network environment.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S372
► Due to the needs of real-time, bandwidth intensive applications like videoconferencing, several resource reservation infrastructures like the Integrated Services Packet Network (ISPN) are currently being…
(more)
▼ Due to the needs of real-time, bandwidth intensive applications like videoconferencing, several resource reservation infrastructures like the Integrated Services Packet Network (ISPN) are currently being developed. These schemes provide applications with a way to reserve a fixed quantity of network resources for their exclusive use. Most video encoders, however, are variable rate. This research describes a mechanism by which variable bit-rate, real-time video streams can be sent over a fixed rate resource reservation with a high level of reservation utilization. A Predictive/Adaptive Rate Control (PARC) mechanism is developed which dynamically adjusts the quality of the video encoding using a prediction mechanism to obtain a nearly constant output rate. This rate can then make use of a high percentage of the reserved rate. The controlled coder output is buffered so that any errors in the predictive video quality adjustment can be smoothed. Network delay feedback is used to control the buffer delay so that none of the data packets exceed an allowable real-time delay maximum for useful video-conferencing. Finally, the reservation rate is adapted over time to match the needs of each particular video sequence. This research is implemented and tested using a multi-layered version of the popular CU-SeeMe video encoder built into a basic video-conferencing tool. While the resulting image quality remains high, increases in link utilization as high as 108.8% over current techniques used for sending variable bit-rate over resource reservations are shown.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Schroeder, C. G. (2012). Increased network efficiency for variable rate video streams in an Integrated Services Packet Network environment. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S372
Chicago Manual of Style (16th Edition):
Schroeder, Charles Grant. “Increased network efficiency for variable rate video streams in an Integrated Services Packet Network environment.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S372.
MLA Handbook (7th Edition):
Schroeder, Charles Grant. “Increased network efficiency for variable rate video streams in an Integrated Services Packet Network environment.” 2012. Web. 26 Feb 2020.
Vancouver:
Schroeder CG. Increased network efficiency for variable rate video streams in an Integrated Services Packet Network environment. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S372.
Council of Science Editors:
Schroeder CG. Increased network efficiency for variable rate video streams in an Integrated Services Packet Network environment. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S372
Texas A&M University
12.
Schwerdt, Karl.
Design and implementation of a video codex using Mean Field Annealing.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S394
► This thesis is about the evaluation of a prediction algorithm for a standard video codec proposed in [1]. This video codec follows the specifications of…
(more)
▼ This thesis is about the evaluation of a prediction algorithm for a standard video codec proposed in [1]. This video codec follows the specifications of the ISO H.261 Recommendation. The video codec and the proposed algorithm were written in software, and the algorithm was implemented into the predictor of the video codec. Using Mean Field Annealing, the predictor iterates the reconstructed image to eliminate blocking artifacts, noise, and other image degradations. This is supposed to be achieved by using "a priori" information about the image to be iterated. The implemented video codec was run with and without the proposed algorithm on different PC platforms, and the results evaluated with various criteria. The results presented show that the proposed algorithm seems to be inappropriate for the intended application. Computing speed is slowed down considerably because of the iterative nature of the algorithm. Furthermore, the worse the quality of the considered image, the better results yields the algorithm. However , the resulting image quality is not good enough to justify an employment of this algorithm in real video telephony or conferencing systems. Other means of improving video image quality like reducing frame rates or reallocating bandwidth would be more beneficial.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Schwerdt, K. (2012). Design and implementation of a video codex using Mean Field Annealing. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S394
Chicago Manual of Style (16th Edition):
Schwerdt, Karl. “Design and implementation of a video codex using Mean Field Annealing.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S394.
MLA Handbook (7th Edition):
Schwerdt, Karl. “Design and implementation of a video codex using Mean Field Annealing.” 2012. Web. 26 Feb 2020.
Vancouver:
Schwerdt K. Design and implementation of a video codex using Mean Field Annealing. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S394.
Council of Science Editors:
Schwerdt K. Design and implementation of a video codex using Mean Field Annealing. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S394
Texas A&M University
13.
Stevens, Kenneth Michael.
A versatile computer model for the design and analysis of electric and hybrid vehicles.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S754
► The primary purpose of the work reported in this thesis was to develop a versatile computer model to facilitate the design and analysis of hybrid…
(more)
▼ The primary purpose of the work reported in this thesis was to develop a versatile computer model to facilitate the design and analysis of hybrid vehicle drive-trains. A hybrid vehicle is one in which power for propulsion comes from two distinct sources, usually an internal combustion engine and an electric motor. Because of the design flexibility inherent in a propulsion system that has more than one source of energy, computer er modeling is necessary to identify which parameters are mainly responsible for the performance of the power-plant and to determine which designs are most viable. The modeling system described
[email protected] this thesis was developed to accommodate a wide range of vehicle components and modeling techniques. The modeling framework to which the drive-train component models are attached emphasizes the functional role of components and not their implementation. This creates a uniform component interface which limits access to the inner workings of a component model and improves compatibility between various types of models. Conceptual levels of abstraction are identified in this thesis which can be used to organize information in a hybrid vehicle model. By incorporating these levels into the modeling system, the tasks associated with creating a hybrid vehicle are separated allowing the designer to focus on one aspect at a time. The modeling of the various levels occurs at independent locations in the model and the interfaces between the conceptual levels are defined so that changing the implementation of a particular level does not affect its interaction with other levels. A simulation study is then detailed to show how the model can be used to create and analyze hybrid vehicle designs. The study focuses on two control algorithms which implement a sustainable, electrically-peaking, parallel hybrid design. The first algorithm reduces fuel consumption by minimizing the amount of time that the internal combustion engine is operated. The second algorithm reduces the load on the electric motor by operating the internal combustion engine over its entire speed range. The simulation results indicate that both algorithms can successfully maintain the battery state of charge over the given drive-cycle. Finally, conclusions about the model and recommendations for future studies are discussed.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Stevens, K. M. (2012). A versatile computer model for the design and analysis of electric and hybrid vehicles. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S754
Chicago Manual of Style (16th Edition):
Stevens, Kenneth Michael. “A versatile computer model for the design and analysis of electric and hybrid vehicles.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S754.
MLA Handbook (7th Edition):
Stevens, Kenneth Michael. “A versatile computer model for the design and analysis of electric and hybrid vehicles.” 2012. Web. 26 Feb 2020.
Vancouver:
Stevens KM. A versatile computer model for the design and analysis of electric and hybrid vehicles. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S754.
Council of Science Editors:
Stevens KM. A versatile computer model for the design and analysis of electric and hybrid vehicles. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S754
Texas A&M University
14.
Sun, Jianyong.
Design and implementation of a prototype generator monitoring system.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S86
► This thesis describes an implementation framework for an intelligent generator monitoring system. This solution is based on high performance front-end data acquisition system and real-time…
(more)
▼ This thesis describes an implementation framework for an intelligent generator monitoring system. This solution is based on high performance front-end data acquisition system and real-time processing of electrical signals and contacts from related protective relays, circuit breakers, and switches. Based on this data, the system performs continuous monitoring of the electrical part of the generator and informs operators of any deviations from the normal operating conditions. The monitoring involves automated comparison and evaluation of several input quantities according to the rules defined by the experts. The system is implemented using a PC interfaced to an advanced digital fault recorder.
Subjects/Keywords: electrical engineering; Major electrical engineering
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APA (6th Edition):
Sun, J. (2012). Design and implementation of a prototype generator monitoring system. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S86
Chicago Manual of Style (16th Edition):
Sun, Jianyong. “Design and implementation of a prototype generator monitoring system.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S86.
MLA Handbook (7th Edition):
Sun, Jianyong. “Design and implementation of a prototype generator monitoring system.” 2012. Web. 26 Feb 2020.
Vancouver:
Sun J. Design and implementation of a prototype generator monitoring system. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S86.
Council of Science Editors:
Sun J. Design and implementation of a prototype generator monitoring system. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S86
Texas A&M University
15.
Sutharsan, Thirunathan.
Mutually refining DPCM system with applications in frame erasure channels.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S88
► We consider the design of a mutually refining DPCM (MR-DPCM) system and its applications to frame erasure channels. MR-DPCM is a system that uses diversity…
(more)
▼ We consider the design of a mutually refining DPCM (MR-DPCM) system and its applications to frame erasure channels. MR-DPCM is a system that uses diversity to overcome channel impairments. In this thesis the design for a two channel system is addressed. Two descriptions of the source sequence is sent to the receiver over the two available channels. If both channels are working a high quality reconstruction of the source sequence is obtained. In case one of the channels is down a lower quality description is obtained. The performance of the MR-DPCM system is analyzed theoretically, and verified by simulation using Gauss-Markov sources. A sub-optimum MR-DPCM scheme is also analyzed, and conditions necessary for mutual refinement are derived. The MR-DPCM system is modified to code speech, and speech coders operating at 24 kbps and 32 kbps are constructed. The performance of MR-DPCM speech coders is compared to the performance of a single channel ADPCM system. The MR-DPCM based speech coders are used for the transmission of speech frames over frame erasure channels. For simple frame erasures we show that the MR-DPCM system is more robust than the single channel ADPCM system. We then apply the MR-DPCM system to transmit speech over a mobile radio channel model where frame erasures occur in bursts. A Reed-Solomon channel code is applied to decrease the operating channel SNR significantly. The performance of the Reed-Solomon coded MR-DPCM system is then obtained for different code rates and vehicle speeds.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Sutharsan, T. (2012). Mutually refining DPCM system with applications in frame erasure channels. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S88
Chicago Manual of Style (16th Edition):
Sutharsan, Thirunathan. “Mutually refining DPCM system with applications in frame erasure channels.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S88.
MLA Handbook (7th Edition):
Sutharsan, Thirunathan. “Mutually refining DPCM system with applications in frame erasure channels.” 2012. Web. 26 Feb 2020.
Vancouver:
Sutharsan T. Mutually refining DPCM system with applications in frame erasure channels. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S88.
Council of Science Editors:
Sutharsan T. Mutually refining DPCM system with applications in frame erasure channels. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-S88
Texas A&M University
16.
Tandon, Piyush.
An on-line performance optimization of the Switched Reluctance Motor.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-T36
► The Switched Reluctance Motor (SRM) has been developed extensively during the past 15 years. Due to the simple motor construction and power converter requirements, SRM…
(more)
▼ The Switched Reluctance Motor (SRM) has been developed extensively during the past 15 years. Due to the simple motor construction and power converter requirements, SRM drives have been found competitive with traditional AC and DC drives. Optimal performance of the SRM drive may be described by different figures of merit such as drive efficiency, torque per ampere and torque ripple. This thesis addresses the problem of obtaining 'maximum torque per ampere' from the motor. The control of torque and speed in the SRM drive is complex due to the nonlinear relationship between the input variables (phase current magnitude and switching instants) and the motor torque. 'Tuning' of the drive is defined as the process of determining the set of input variables that results in maximum torque per ampere (TPA) at the required speed and load torque. The existence and uniqueness of a solution' to the maximum TPA problem are demonstrated by computer simulation of the machine model, using measured data of the inductance profile from an SRM. Due to manufacturing tolerances, the inductance profiles of the SRM show variations from phase to phase. Furthermore, the profiles may change with time due to effects such as wear on the bearings. A 'self-tuning' control strategy is proposed to compensate for these variations. An algorithm has been developed to maximize TPA on-line, while the SRM is running. It is based on perturbing the input variables and measuring the TPA after each change. This does not involve any complex computations based on the machine model but, just requires measurement of the observable variables of the drive system such as speed and current. The above strategy has been implemented on an SRM test bed with a 16-bit microcontroller. The drive operation is constrained to be in the lowspeed, chopping current control mode. A shaft position sensor is employed for commutation. Experimental results show the increase in TPA after execution of the optimization algorithm, Thus, a real-time self-tuning controller has been demonstrated, that is applicable to all SRM drives with shaft position sensors.
Subjects/Keywords: electrical engineering; Major electrical engineering
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APA (6th Edition):
Tandon, P. (2012). An on-line performance optimization of the Switched Reluctance Motor. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-T36
Chicago Manual of Style (16th Edition):
Tandon, Piyush. “An on-line performance optimization of the Switched Reluctance Motor.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-T36.
MLA Handbook (7th Edition):
Tandon, Piyush. “An on-line performance optimization of the Switched Reluctance Motor.” 2012. Web. 26 Feb 2020.
Vancouver:
Tandon P. An on-line performance optimization of the Switched Reluctance Motor. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-T36.
Council of Science Editors:
Tandon P. An on-line performance optimization of the Switched Reluctance Motor. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-T36
Texas A&M University
17.
Van Slyke, Braddon Michael.
Implementation of a sampled receiver using TMS320C30 signal processor.
Degree: MS, electrical Engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-V365
► Advances in digital signal processors have prompted the development of various algorithms for use in all digital data receivers. This thesis discusses the implementation of…
(more)
▼ Advances in digital signal processors have prompted the development of various algorithms for use in all digital data receivers. This thesis discusses the implementation of a joint detection and symbol synchronization algorithm using two Texas Instruments TMS32OC30 (C30) Digital Signal Processors, one as a transmitter of digital data, and another as a sampled receiver used to implement the algorithm. It is shown that when using raised cosine pulses for transmission of symbols, and sampling of these symbols is at least 4 times above the Nyquist rate, the performance results using the TMS32OC30 Digital Signal Processor coincide with those theoretically derived. Furthermore, it is also shown that the timing estimate produced by the algorithm can be used to compensate for differing transmitter/receiver clock rates.
Subjects/Keywords: electrical Engineering.; Major electrical Engineering.
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APA (6th Edition):
Van Slyke, B. M. (2012). Implementation of a sampled receiver using TMS320C30 signal processor. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-V365
Chicago Manual of Style (16th Edition):
Van Slyke, Braddon Michael. “Implementation of a sampled receiver using TMS320C30 signal processor.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-V365.
MLA Handbook (7th Edition):
Van Slyke, Braddon Michael. “Implementation of a sampled receiver using TMS320C30 signal processor.” 2012. Web. 26 Feb 2020.
Vancouver:
Van Slyke BM. Implementation of a sampled receiver using TMS320C30 signal processor. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-V365.
Council of Science Editors:
Van Slyke BM. Implementation of a sampled receiver using TMS320C30 signal processor. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1996-THESIS-V365
Texas A&M University
18.
Chugh, Pankaj Pravinkumar.
Switch level optimization for CMOS circuits.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-C485
► In this report, 'Input vs Path Matrix 'Techique' and 'Node vs Input Matrix Technique' techniques for reducing transistor count in the pull-up and the pull-down…
(more)
▼ In this report, 'Input vs Path Matrix 'Techique' and 'Node vs Input Matrix Technique' techniques for reducing transistor count in the pull-up and the pull-down array of CMOS circuits are proposed. Also, algorithms for optimization of both the pull-up tree and the pull-down tree, based on the above techniques, which results in a reduced number of transistors in the optimized tree in comparison to the original structure of CMOS circuits are proposed. A comparison has been done for area, delay and power of the optimized and unoptimized CMOS structures. Simulations for power and delay have been done in HSPICE [8] for both the optimized and unoptimized CMOS structures. Some of the optimized CMOS structures are the multiplexers, adders and gray to binary converters. The optimized CMOS structures have been found to be faster, lower in power dissipation and taking less layout area in comparison to the unoptimized CMOS structures. The above techniques can also be applied to the Pseudo-NMOS and Dynamic CMOS circuits besides the regular CMOS circuits.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Chugh, P. P. (2012). Switch level optimization for CMOS circuits. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-C485
Chicago Manual of Style (16th Edition):
Chugh, Pankaj Pravinkumar. “Switch level optimization for CMOS circuits.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-C485.
MLA Handbook (7th Edition):
Chugh, Pankaj Pravinkumar. “Switch level optimization for CMOS circuits.” 2012. Web. 26 Feb 2020.
Vancouver:
Chugh PP. Switch level optimization for CMOS circuits. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-C485.
Council of Science Editors:
Chugh PP. Switch level optimization for CMOS circuits. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-C485
Texas A&M University
19.
Drummond, Mary Alyssa.
Demonstration of Ballistic Electron Emission Microscopy / Spectroscopy on the Au/Si (001) system.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-D78
► The Ballistic Electron Emission Microscopy (BEEM) capabilities of a Scanning Tunneling Microscope (STM) have been verified. BEEM is used to analyze the characteristics of buried…
(more)
▼ The Ballistic Electron Emission Microscopy (BEEM) capabilities of a Scanning Tunneling Microscope (STM) have been verified. BEEM is used to analyze the characteristics of buried energy barriers and was developed as an extension of scanning tunneling microscopy; hence, the analytical capabilities of BEEM are on a manometer scale. To use BEEM, low-noise Au/Si (001) Schottky diodes have been fabricated. The diodes were macroscopically tested for their electrical properties using conventional current-voltage (I-V) techniques. The same diodes were then placed in an ultra-high vacuum STM system and analyzed with BEEM. The ballistic electron emission microscopy and scanning tunneling microscopy showed some correlation with the topography of the evaporated gold surface. The barrier heights of the diodes were extracted from the ballistic electron emission spectroscopy with the use of a simple one dimensional BEEM current model. Comparison between the barrier heights obtained with BEEM and conventional I-V techniques showed the localized barrier heights to be higher than the macroscopic barrier heights.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Drummond, M. A. (2012). Demonstration of Ballistic Electron Emission Microscopy / Spectroscopy on the Au/Si (001) system. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-D78
Chicago Manual of Style (16th Edition):
Drummond, Mary Alyssa. “Demonstration of Ballistic Electron Emission Microscopy / Spectroscopy on the Au/Si (001) system.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-D78.
MLA Handbook (7th Edition):
Drummond, Mary Alyssa. “Demonstration of Ballistic Electron Emission Microscopy / Spectroscopy on the Au/Si (001) system.” 2012. Web. 26 Feb 2020.
Vancouver:
Drummond MA. Demonstration of Ballistic Electron Emission Microscopy / Spectroscopy on the Au/Si (001) system. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-D78.
Council of Science Editors:
Drummond MA. Demonstration of Ballistic Electron Emission Microscopy / Spectroscopy on the Au/Si (001) system. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-D78
Texas A&M University
20.
Echeverria Del Rio, Adolfo.
Analysis and design of frequency tunable feedforward amplifier for PCS application.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-E24
► Feedforward amplifiers are configurations used to reduce in-band third order Interrnodulation Distortion (IMD) products. A linear feedforward amplifier with channel tunability has been designed to…
(more)
▼ Feedforward amplifiers are configurations used to reduce in-band third order Interrnodulation Distortion (IMD) products. A linear feedforward amplifier with channel tunability has been designed to operate in the Personal Communication Services (PCS) bandwidth. All the active and passive system's components were analyzed and integrated into a single microstrip module. The accurate use of the circuit simulator HP-EEsof Libra allowed the integration of the hybrid microstrip circuit using inexpensive components with a high level of precision. The results show a tuning range of 195 MHz with a 10 MHz bandwidth, providing an intennodulation cancellation of 60 dB below the main carrier when integrated with a class-A amplifier.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Echeverria Del Rio, A. (2012). Analysis and design of frequency tunable feedforward amplifier for PCS application. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-E24
Chicago Manual of Style (16th Edition):
Echeverria Del Rio, Adolfo. “Analysis and design of frequency tunable feedforward amplifier for PCS application.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-E24.
MLA Handbook (7th Edition):
Echeverria Del Rio, Adolfo. “Analysis and design of frequency tunable feedforward amplifier for PCS application.” 2012. Web. 26 Feb 2020.
Vancouver:
Echeverria Del Rio A. Analysis and design of frequency tunable feedforward amplifier for PCS application. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-E24.
Council of Science Editors:
Echeverria Del Rio A. Analysis and design of frequency tunable feedforward amplifier for PCS application. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-E24
Texas A&M University
21.
Estrada Gutierrez, Pedro Cuauhtemoc.
Design of a fuzzy controller for energy management of a parallel hybrid electric vehicle.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-E88
► This thesis addresses the design of a control scheme based on Fuzzy Logic to minimize automobile fuel consumption and exhaust emissions while maximizing battery state…
(more)
▼ This thesis addresses the design of a control scheme based on Fuzzy Logic to minimize automobile fuel consumption and exhaust emissions while maximizing battery state of charge (SOC) for hybrid vehicles. The advantages the hybrid vehicle has over the conventional vehicle are very low emission of pollutants, and more efficient fuel consumption if controlled properly. The principal components of the drive train are an internal combustion engine and an electric motor. Since there are two devices, it becomes impossible for the driver to individually control both components while driving along, and it will be necessary to automate the use of these elements so that the vehicle is driven in the same way as a conventional vehicle. In the parallel configuration, both devices apply torque directly to the drive shaft for propelling the vehicle. Each component of the hybrid vehicle is modeled, and throttle angle, motor current and brake torque command are chosen as the control inputs. Another input considered is the driver behavior. This input is obtained from an Artificial Neural Network that classifies the behavior based on the pedal angle characteristics over a period of time. The problem in question is how to distribute the energy demands for each component of the hybrid vehicle so that the objectives, maximizing the battery SOC and minimizing fuel consumption and pollutant emissions, are met. Because these objectives depend on different components, we must decide how to demand energy from them to fulfill the driver request and at the same time meeting the objectives. A Fuzzy Logic Controller is designed to meet the driver demand so that the engine, motor and battery are as little exposed as possible to abrupt transitions. Smooth transitions are desired in the engine in order to decrease fuel consumption and emission of pollutants. Smooth transitions in the battery will lead to extended battery life. Simulation results verify that the controller achieves the design objectives. Because the design procedure is based on trial and error, optimality is not guaranteed. Also stability is hard to prove, since there is not much information on this particular issue of Fuzzy Logic.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Estrada Gutierrez, P. C. (2012). Design of a fuzzy controller for energy management of a parallel hybrid electric vehicle. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-E88
Chicago Manual of Style (16th Edition):
Estrada Gutierrez, Pedro Cuauhtemoc. “Design of a fuzzy controller for energy management of a parallel hybrid electric vehicle.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-E88.
MLA Handbook (7th Edition):
Estrada Gutierrez, Pedro Cuauhtemoc. “Design of a fuzzy controller for energy management of a parallel hybrid electric vehicle.” 2012. Web. 26 Feb 2020.
Vancouver:
Estrada Gutierrez PC. Design of a fuzzy controller for energy management of a parallel hybrid electric vehicle. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-E88.
Council of Science Editors:
Estrada Gutierrez PC. Design of a fuzzy controller for energy management of a parallel hybrid electric vehicle. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-E88
Texas A&M University
22.
Gholmieh, Ralph Akram.
Multicast multilayer videoconferencing: enhancement of a multilayer codec and implementation of the receiver driven layered multicast protocol.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G46
► Videoconferencing is an important topic on the current Internet. The heterogeneity of the network, its access-to-all approach and the varying amount of available bandwidth present…
(more)
▼ Videoconferencing is an important topic on the current Internet. The heterogeneity of the network, its access-to-all approach and the varying amount of available bandwidth present many challenges to researchers. Most of the available videoconferencing implementations send video and audio in a monolithic stream with an adaptive rate. In one-to-many sessions, the available end-to-end bandwidth between the source and a receiver might sharply differ from one end-user to another. It is clear that one rate cannot satisfy all the online users because that would force the source to use a least common denominator strategy. Earlier work of graduate students at the TAMU Multimedia and Networking Laboratory has focused on multi-layered encoding. The video is "multiplexed" on several streams. Receivers with more bandwidth can request more streams for a better picture quality. In this research, CafeMocha (the videoconferencing tool developed by Sazzad and Brown at Texas A&M) is enhanced from a two layer codec to a six layer codec. Layer control methods are then tested using the improved codec. A simplified version of the Receiver-driven Layered Multicast protocol (RLM) proposed by McCanne at UC Berkeley, is implemented and tested. Later, RLM itself is implemented, and tested in the one-to-one case. A new metric is defined whereby each layer control scheme subscription path, under various rate limits, is compared to a defined "ideal" layer subscription sample path. We defined performance as the ratio of the cumulative bandwidth delivered in the actual case to the cumulative bandwidth delivered in the "ideal" case. RLM performance values of 99.6% were recorded when the performance was still good at 72.6% when the ideal highest subscription layer was bursty. RLM was found to be a good control mechanism for moderately bursty layered streams. Propositions for possible improvements are suggested in the conclusion.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Gholmieh, R. A. (2012). Multicast multilayer videoconferencing: enhancement of a multilayer codec and implementation of the receiver driven layered multicast protocol. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G46
Chicago Manual of Style (16th Edition):
Gholmieh, Ralph Akram. “Multicast multilayer videoconferencing: enhancement of a multilayer codec and implementation of the receiver driven layered multicast protocol.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G46.
MLA Handbook (7th Edition):
Gholmieh, Ralph Akram. “Multicast multilayer videoconferencing: enhancement of a multilayer codec and implementation of the receiver driven layered multicast protocol.” 2012. Web. 26 Feb 2020.
Vancouver:
Gholmieh RA. Multicast multilayer videoconferencing: enhancement of a multilayer codec and implementation of the receiver driven layered multicast protocol. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G46.
Council of Science Editors:
Gholmieh RA. Multicast multilayer videoconferencing: enhancement of a multilayer codec and implementation of the receiver driven layered multicast protocol. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G46
Texas A&M University
23.
Gonzalez Barron, Raul.
A WWW-based in-class response system.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G66
► Using the current network infrastructure and the Internet capabilities, a WWW-based in-class-response system is developed from which the instructor can obtain instant feedback about the…
(more)
▼ Using the current network infrastructure and the Internet capabilities, a WWW-based in-class-response system is developed from which the instructor can obtain instant feedback about the student's comprehension level during lecture. Using a Web browser in class as a form of instructor-student interaction, students can improve communication, shorten response time to questions and increase overall learning. Immediate access to the students' response to questions posted in-class will give the instructor a chance to initiate early corrective action and enhance overall teaching performance. One of the concerns resulting from the use of such a system in an in-class setting, however, arises due to the potential problem of server overload. With a classroom size of 50 to 100 students working within the same one to two minute window, there may be Web server performance problems caused by the large number of submissions within such a short time. Observing the unsatisfactory performance of the Web Server during the initial stages of this research, led to the implementation to the proposed solution to overcome this problem. Implementation of the FastCGI interface on the Web Server is used to minimize response time. A comparison between CGI and FastCGI shows the performance improvement which stems from having a configurable number of processes running on the Web Server to serve the concurrent requests. A uniformly distributed scenario for an in-class response setting (e.g., having 100 students accessing the server in a 30 seconds window), would require a service rate from the server of browser's results, having a response time of between 12 and 17 seconds per connection using a fraction of the expected load, leads to the conclusion that the original testbed based on a SPARC I will not be able to sustain the expected load for an in-class setting. A much lower response time and a higher throughput was obtained after installing the CGI programs on a Ultra Sparc 2. The benchmark tests using 84 Webclients showed a throughput of 17 and 194 connections per second using the CGI and FastCGI access method, respectively. The Web browser tests showed an average response time of less than one second per connection using a higher load than the expected 100 requests in a 30 second window. These results leads us to conclude that the Web Server based on the Ultra Sparc 2 will be able to handle the expected in-class load, at the much higher expense of the latter machine.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Gonzalez Barron, R. (2012). A WWW-based in-class response system. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G66
Chicago Manual of Style (16th Edition):
Gonzalez Barron, Raul. “A WWW-based in-class response system.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G66.
MLA Handbook (7th Edition):
Gonzalez Barron, Raul. “A WWW-based in-class response system.” 2012. Web. 26 Feb 2020.
Vancouver:
Gonzalez Barron R. A WWW-based in-class response system. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G66.
Council of Science Editors:
Gonzalez Barron R. A WWW-based in-class response system. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G66
Texas A&M University
24.
Gunawan, Wiedy.
EM algorithm estimation of TCM scheme over multipath fading.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G86
► The performance of Trellis Coded Modulation scheme via Expectation-Maximization algorithm utilizing a Kalman filter over multipath fading is presented. EM algorithm offers an easier computation…
(more)
▼ The performance of Trellis Coded Modulation scheme via Expectation-Maximization algorithm utilizing a Kalman filter over multipath fading is presented. EM algorithm offers an easier computation than the classical ML estimation does. To get a better prediction of the communication performance, a fading channel model whose characteristics match with the real fading is implemented in the simulation. In the study a multipath fading channel model is considered. Multipath fading channel is applied to a communication system where the direct line-of-sight signal is blocked. A Trellis coding scheme is used to increase the system performance in this type of fading channel which is found to be a burst error channel and/or a random error channel. To further combat the burst error a block interleaver is incorporated in the system. Simulation results are presented for various normalized fading bandwidth which correspond normal vehicle speed at 2400 baud rate for an L-band carrier frequency. The gain between a receiver with perfect channel information and a receiver employing EM algorithm is 3-4 db for heavy and light fading over a range BTs of 0.01-0.1.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Gunawan, W. (2012). EM algorithm estimation of TCM scheme over multipath fading. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G86
Chicago Manual of Style (16th Edition):
Gunawan, Wiedy. “EM algorithm estimation of TCM scheme over multipath fading.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G86.
MLA Handbook (7th Edition):
Gunawan, Wiedy. “EM algorithm estimation of TCM scheme over multipath fading.” 2012. Web. 26 Feb 2020.
Vancouver:
Gunawan W. EM algorithm estimation of TCM scheme over multipath fading. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G86.
Council of Science Editors:
Gunawan W. EM algorithm estimation of TCM scheme over multipath fading. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G86
Texas A&M University
25.
Gunay, Zeki Sezgin.
A 1.8V 10-bit 10MS/sec pipelined ADC.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G863
► The objective of this thesis is to develop a pipelined analog-to-digital converter which operates under a single supply voltage of 1.8V and is capable of…
(more)
▼ The objective of this thesis is to develop a pipelined analog-to-digital converter which operates under a single supply voltage of 1.8V and is capable of resolving 10 bits at a rate of IOMS/sec. Although the overall architecture of the developed pipelined converter is a general one at the system level, a family of new low-voltage building blocks is proposed. The amplifiers and comparators which are designed to perform interstage processing have high gain-bandwidth products and they are capable of operating at supply levels of less than the initial specification of 1.8V. To test the concepts used to design important blocks such as amplifiers and comparators, a chip prototype amplifier is fabricated in a 1.2nm standard CMOS process and is tested to be functional. The entire converter system is designed using a 0.5/,nm standard CMOS process and its layout is completed. A patent application is filed for the offset cancelation utilizing capacitive levelshift devices for single-ended amplifiers.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Gunay, Z. S. (2012). A 1.8V 10-bit 10MS/sec pipelined ADC. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G863
Chicago Manual of Style (16th Edition):
Gunay, Zeki Sezgin. “A 1.8V 10-bit 10MS/sec pipelined ADC.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G863.
MLA Handbook (7th Edition):
Gunay, Zeki Sezgin. “A 1.8V 10-bit 10MS/sec pipelined ADC.” 2012. Web. 26 Feb 2020.
Vancouver:
Gunay ZS. A 1.8V 10-bit 10MS/sec pipelined ADC. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G863.
Council of Science Editors:
Gunay ZS. A 1.8V 10-bit 10MS/sec pipelined ADC. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-G863
Texas A&M University
26.
Heimer, Brad Ryan.
A study of hybrid ring and branch line couplers utilizing uniplanar asymmetric coplanar stripline.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-H45
► This thesis introduces four new uniplanar 3-dB hybrid couplers using asymmetrical coplanar striplines (ACPS) for microwave integrated circuit (MIC) and monolithic microwave integrated circuit (MMIC)…
(more)
▼ This thesis introduces four new uniplanar 3-dB hybrid couplers using asymmetrical coplanar striplines (ACPS) for microwave integrated circuit (MIC) and monolithic microwave integrated circuit (MMIC) applications. The ACPS transmission line is characterized using Sonnet Software, and its characteristic impedance is graphed for a particular substrate. These graphs serve as building blocks for the design process. ACPS transmission lines eliminate the plating of the inner conducting ground plane and also lessen the number of bond wires as compared to coplanar waveguide (CPW) hybrid couplers. A standard uniplanar 180' hybrid ring and reverse-phase hybrid ring coupler are designed and fabricated. The advantages of the reverse-phase hybrid ring are wider bandwidth and smaller size. A reduced size reverse-phase hybrid ring coupler is also designed and fabricated, and its advantage is smaller size while maintaining the performance of the reverse-phase hybrid ring coupler. A new 3-dB 90' branch-line hybrid coupler is also designed and constructed. These circuits will be shown to meet or exceed the performance of similar microstrip and CPW hybrid couplers while at the same time maintaining the advantages previously mentioned.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Heimer, B. R. (2012). A study of hybrid ring and branch line couplers utilizing uniplanar asymmetric coplanar stripline. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-H45
Chicago Manual of Style (16th Edition):
Heimer, Brad Ryan. “A study of hybrid ring and branch line couplers utilizing uniplanar asymmetric coplanar stripline.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-H45.
MLA Handbook (7th Edition):
Heimer, Brad Ryan. “A study of hybrid ring and branch line couplers utilizing uniplanar asymmetric coplanar stripline.” 2012. Web. 26 Feb 2020.
Vancouver:
Heimer BR. A study of hybrid ring and branch line couplers utilizing uniplanar asymmetric coplanar stripline. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-H45.
Council of Science Editors:
Heimer BR. A study of hybrid ring and branch line couplers utilizing uniplanar asymmetric coplanar stripline. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1997-THESIS-H45
Texas A&M University
27.
Dong, Hui.
Adaptive code generators for tree coding of speech.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-D66
► Tree coding is a promising way of obtaining good performance for medium-to-low rate speech coding. The key part of a tree coder is the code…
(more)
▼ Tree coding is a promising way of obtaining good performance for medium-to-low rate speech coding. The key part of a tree coder is the code generator which consists of a short-term predictor and a long-term predictor. The best predictor designed for non-stationary speech should be adaptive, and forward adaptation and backward adaptation are widely studied in certain types of speech coding. In this research, based on the same adaptive long-term predictor, tree coders are implemented with different short-term code generators, forward adaptive and backward adaptive. To compare their advantages and disadvantages, the forward code generators use a 4-2 multi-tree structure at rate 13200 bits/s, while the backward code generators use a 4-2-4 multi-tree structure at rate 13333 bits/s. Interpolation is performed for forward code generators, while a powerful RLS algorithm is used in the backward code generators. A novel hybrid code generator which combines the forward and backward code generators in a system at rate 13200 bits/s is designed. The results indicate that the hybrid adaptive system performs better in terms of spectrograms than the forward adaptive systems and that the backward adaptive system at 13333 bits/s performs as well, even better than the hybrid adaptive system at 13200 bits/S. For each tree coder, reconstructed speech is evaluated using signal-to-noise ratios (SNRs), segmental SNRS, spectrograms, and informal listening tests.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Dong, H. (2012). Adaptive code generators for tree coding of speech. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-D66
Chicago Manual of Style (16th Edition):
Dong, Hui. “Adaptive code generators for tree coding of speech.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-D66.
MLA Handbook (7th Edition):
Dong, Hui. “Adaptive code generators for tree coding of speech.” 2012. Web. 26 Feb 2020.
Vancouver:
Dong H. Adaptive code generators for tree coding of speech. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-D66.
Council of Science Editors:
Dong H. Adaptive code generators for tree coding of speech. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-D66
Texas A&M University
28.
D'Souza, Carol Shilpa.
Evaluation of morphological texture features for real-time biological signal classification.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-D76
► Texture features of a signal reflect its shape characteristics and have been used for signal classification. However, little has been done in using morphological texture…
(more)
▼ Texture features of a signal reflect its shape characteristics and have been used for signal classification. However, little has been done in using morphological texture features for signal classification in general and biological sound signal classification in particular. In this thesis, the performance of these features in the classification of biological sound signals is examined. This is done by carrying out a comparative study with two other sets of features used in signal classification-the widely used Linear Predictive Coefficients (LPCS) and the statistical shape features of the frequency spectrum. The Hidden Markov Model (HMM) is used as the classifier. Both the LPCs and the morphological texture features are implemented in real-time on a DSP processor and their respective classification rates are presented.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
D'Souza, C. S. (2012). Evaluation of morphological texture features for real-time biological signal classification. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-D76
Chicago Manual of Style (16th Edition):
D'Souza, Carol Shilpa. “Evaluation of morphological texture features for real-time biological signal classification.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-D76.
MLA Handbook (7th Edition):
D'Souza, Carol Shilpa. “Evaluation of morphological texture features for real-time biological signal classification.” 2012. Web. 26 Feb 2020.
Vancouver:
D'Souza CS. Evaluation of morphological texture features for real-time biological signal classification. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-D76.
Council of Science Editors:
D'Souza CS. Evaluation of morphological texture features for real-time biological signal classification. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-D76
Texas A&M University
29.
Gonzalez, Octavio A.
VLSI implementation of a chaotic encryption algorithm with applications to secure communications.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-G664
► Chaos has been emerging as a phenomenon that Micrographics. researchers claim can be applied in the communications area for security purposes. Several implementations of chaos…
(more)
▼ Chaos has been emerging as a phenomenon that Micrographics. researchers claim can be applied in the communications area for security purposes. Several implementations of chaos schemes ranging from simple masking of an information signal with chaos to coding using the noise-like characteristics of chaos have been presented in the literature. Up to date, most of the experimental secure communications schemes employing chaos have been implemented with discrete components. While some VLSI implementations have been presented in the literature, most of them have been for the case of chaotic information masking. Several drawbacks for this simple masking case make this approach unfeasible for real communication purposes. A new approach for encrypting an information signal using a chaotic synchronous system and an innovative non-linear filter was proposed and experimentally verified with discrete components by Con-on and Hahs. In this thesis, the VLSI implementation of a similar secure communication system is presented. The mathematics behind the generalized Lorenz chaotic system and the Corrori and Hahs approach are developed and presented. One of the major contributions of this work is the VLSI implementation of a fully-differential Lorenz chaotic system which is the first of its kind. The oscillating frequency of this chaos system is externally programmable by varying the capacitor values of the system integrities. A fully-differential cyptosystem is designed and fabricated using the [], technology available through the MOSIS foundry. The baseband cryptosystem has a signal dynamic range of []1.5V using []3V power supplies and is capable of sustaining digital information rates of up to 100Kb/s.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
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APA (6th Edition):
Gonzalez, O. A. (2012). VLSI implementation of a chaotic encryption algorithm with applications to secure communications. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-G664
Chicago Manual of Style (16th Edition):
Gonzalez, Octavio A. “VLSI implementation of a chaotic encryption algorithm with applications to secure communications.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-G664.
MLA Handbook (7th Edition):
Gonzalez, Octavio A. “VLSI implementation of a chaotic encryption algorithm with applications to secure communications.” 2012. Web. 26 Feb 2020.
Vancouver:
Gonzalez OA. VLSI implementation of a chaotic encryption algorithm with applications to secure communications. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-G664.
Council of Science Editors:
Gonzalez OA. VLSI implementation of a chaotic encryption algorithm with applications to secure communications. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-G664
Texas A&M University
30.
Gupta, Sumita.
A client oriented, IP level redirection mechanism.
Degree: MS, electrical engineering, 2012, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-G87
► This thesis introduces a new approach for implementing transparent client access to network services. Ever increasing load on the Internet has made it essential to…
(more)
▼ This thesis introduces a new approach for implementing transparent client access to network services. Ever increasing load on the Internet has made it essential to design services that are fast, reliable, easily manageable, transparent to access, and that can scale gracefully with load. A common way of achieving this has been replicating services across multiple servers and redirecting clients to different servers depending upon various criteria. Existing schemes are either entirely server or network based and have many drawbacks. This scheme involves the client network layer actively in redirection. The thesis describes the redirection protocol in detail and the basic implementation of the testbed. The performance of the mechanism is measured by experiments on the testbed and analyzed. The advantages and disadvantages of client based network level redirection are discussed and some useful applications that it can be cast into are described.
Subjects/Keywords: electrical engineering.; Major electrical engineering.
Record Details
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Share »
Record Details
Similar Records
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Gupta, S. (2012). A client oriented, IP level redirection mechanism. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-G87
Chicago Manual of Style (16th Edition):
Gupta, Sumita. “A client oriented, IP level redirection mechanism.” 2012. Masters Thesis, Texas A&M University. Accessed February 26, 2020.
http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-G87.
MLA Handbook (7th Edition):
Gupta, Sumita. “A client oriented, IP level redirection mechanism.” 2012. Web. 26 Feb 2020.
Vancouver:
Gupta S. A client oriented, IP level redirection mechanism. [Internet] [Masters thesis]. Texas A&M University; 2012. [cited 2020 Feb 26].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-G87.
Council of Science Editors:
Gupta S. A client oriented, IP level redirection mechanism. [Masters Thesis]. Texas A&M University; 2012. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-1998-THESIS-G87
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