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1 
Représentations des signaux dans le plan tempsfréquence.Flandrin, Patrick, January 1900 (has links)
Th. doct.ing.Autom. et trait. du signalGrenobleI.N.P., 1982 : DI 265.

2 
Analyse spectrale et interspectrale de signaux par filtrage autorégressif.Hanna, Charaf, January 1900 (has links)
Th. 3e cycleTrait. du signalGrenobleI.N.P.G., 1979. N°: D3 82.

3 
The effect of quadrature hybrid errors on a phase difference frequency estimator and methods for correction /Kitchen, John, January 1991 (has links) (PDF)
Thesis (M. App. Sc.)University of Adelaide, Dept. of Applied Mathematics, 1993? / Includes bibliographical references (leaves 9293).

4 
Miniature data acquisition system for multichannel sensor arraysMa, Ding. January 2010 (has links) (PDF)
Thesis (M.S. in electrical engineering)Washington State University, May 2010. / Title from PDF title page (viewed on July 23, 2010). "School of Electrical Engineering and Computer Science." Includes bibliographical references (p. 5557).

5 
Iterative rowcolumn algorithms for twodimensional intersymbol interference channel equalization complexity reduction and performance enhancement /Ma, Hannan. January 2010 (has links) (PDF)
Thesis (M.S. in electrical engineering)Washington State University, August 2010. / Title from PDF title page (viewed on July 28, 2010). "School of Electrical Engineering and Computer Science." Includes bibliographical references (p. 51).

6 
Distributed SpaceTime Block Codes Achieving Optimal Diversity Function with Linear ReceiverChen, Gongjin 10 1900 (has links)
<p>The design and analyses of SpaceTime Block Codes (STBC) for both single antenna and twoantenna distributed relay channels are considered in this thesis. Due to the fact that the equivalent channel gains for twophase relay channels are the product of two channel coefficients, many current STBC designs for Multiple Input Multiple Output (MIMO) channels cannot be implemented to distributed relay channels efficiently. The direct application of Orthogonal SpaceTime Block Coding (OSTBC) for MIMO systems to distributed cooperative relay networks makes the equivalent channel matrix for maximum likelihood (ML) detection lose its orthogonality. Hence, a new design that makes the channel matrix be \textit{orthogonally distributed} (OD) for a suboptimal symbolbysymbol detector (SBSD) is proposed in this thesis. With ODSTBC, an asymptotic symbol error probability (SEP) formula with SBSD is derived, showing the optimal diversity gain function for single antenna distributed relay channels $\frac{\ln^N\rho}{\rho^N}$ is achieved. In addition, two ODSTBC designs for the distributed relay networks are presented, which interestingly renders that SBSD is equivalent to the ML detector. The ODSTBC enjoys both optimal diversity function and low detection complexity. However, the symbol rate of ODSTBC is relatively low in order to maintain the orthogonal conditions. To address this problem, another Alamouti Based Toeplitz SpaceTime Block Code (ABTSTBC) for twoantenna distributed relay channels is proposed. Both the code structure and the equivalent channel matrix has a block Toeplitz structure, whose blocks are the addition and product of two Alamouti matrices, respectively. With the linear SBSD, the optimal diversity function $\frac{\ln^N\rho}{\rho^{2N}}$ is achieved. At the same time, the advantages of low computational complexity and high symbol rate are maintained. Numerical results verify the diversity analyses and indicate competitive error performance to currently available distributed STBC designs with much lower complexity.</p> / Master of Applied Science (MASc)

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Sensor Placement for Damage Localization in Sensor NetworksFirouzi, Fereshteh 01 January 2019 (has links)
The objective of this thesis is to formulate and solve the sensor placement problem for damage localization in a sensor network. A Bayesian estimation problem is formulated with the timeofflight (ToF) measurements. In this model, ToF of lamb waves, which are generated and received by piezoelectric sensors, is the total time for each wave to be transmitted, reflected by the target, and received by the sensor. The ToF of the scattered lamb wave has characteristic information about the target location. By using the measurement model and prior information, the target location is estimated in a centralized sensor network with a Monte Carlo approach. Then we derive the Bayesian Fisher information matrix (BFIM) and based on that posterior CramerRao lower bound (PCRLB), which sets a limit on the mean squared error (MSE) of any Bayesian estimator. In addition, we develop an optimal sensor placement approach to achieve more accurate damage localization, which is based on minimizing the PCRLB. Simulation results show that the optimal sensor placement solutions lead to much lower estimation errors than some suboptimal sensor placement solutions.

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Analyse des performances d'un système multiutilisateurs OFDM codé sans accès orthogonalRenoult, Adrien. Fijalkow, Inbar. January 2008 (has links) (PDF)
Reproduction de : Thèse doctorat : Traitement des images et du signal : CergyPontoise : 2005. / Titre provenant de l'écran titre. Bibliogr. p.121125.

9 
Combined scalability coding based on the scalable extension of H.264/AVCPark, Sangseok. January 2008 (has links)
Thesis (Ph.D.)University of Texas at Arlington, 2008.

10 
Signal enhancement using timefrequency based denoising /Hughes, John B. January 2003 (has links) (PDF)
Thesis (M.S. in Electrical Engineering)Naval Postgraduate School, March 2003. / Thesis advisor(s): Monique P. Fargues. Includes bibliographical references (p. 105106). Also available online.

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