Дисертації з теми "Impulsive signal"
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Brown, Christopher L. "Goodness-of-fit and detection problems in impulsive interference." Thesis, Curtin University, 2000. http://hdl.handle.net/20.500.11937/40.
Повний текст джерелаKannan, Balakrishnan. "Spatial signal processing for beamforming in impulsive noise using Bayesian principles." Thesis, University of Cambridge, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621044.
Повний текст джерелаBrown, Christopher L. "Goodness-of-fit and detection problems in impulsive interference." Curtin University of Technology, School of Electrical and Computer Engineering, 2000. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=9750.
Повний текст джерелаZou, Yuexian. "Robust statistics based adaptive filtering algorithms for impulsive noise suppression." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22823736.
Повний текст джерелаcui, qiaofeng. "Suppression of impulsive noise in wireless communication." Thesis, Högskolan i Gävle, Avdelningen för elektronik, matematik och naturvetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-18270.
Повний текст джерела6
Wen, Yu, and 文宇. "Robust statistics based subspace tracking in impulsive noise environment: algorithms and applications." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B44570181.
Повний текст джерелаDeJarnette, Hunter Archer. "Measuring Noise in the VHF Band and Its Effect on Low SNR Signal Detection." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/35293.
Повний текст джерелаMaster of Science
Zou, Yuexian, and 鄒月嫻. "Robust statistics based adaptive filtering algorithms for impulsive noise suppression." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B22823736.
Повний текст джерелаabstract
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Electrical and Electronic Engineering
Doctoral
Doctor of Philosophy
Brcic, Ramon. "Some aspects of signal processing in heavy tailed noise." Thesis, Curtin University, 2002. http://hdl.handle.net/20.500.11937/323.
Повний текст джерелаBrcic, Ramon Francis. "Some aspects of signal processing in heavy tailed noise." Curtin University of Technology, Australian Telecommunications Research Institute, 2002. http://espace.library.curtin.edu.au:80/R/?func=dbin-jump-full&object_id=14244.
Повний текст джерелаThe nonparametric bootstrap is used to estimate the distributions of the test statistics removing the assumption of Gaussianity and offering improved performance for heavy tailed observations. Finally, some robust estimators are proposed for estimating parametric signals in additive noise. These are based on M-estimators but implicitly incorporate an estimate of the noise distribution. enabling the estimator to adapt to the unknown noise distribution. Two estimators are developed, one uses a nonparametric kernel density estimator while the other models the score function of the noise distribution with a linear combination of basis functions.
Lau, Wing-yi. "New recursive parameter estimation algorithms in impulsive noise environment with application to frequency estimation and system identification." Click to view the E-thesis via HKUTO, 2006. http://sunzi.lib.hku.hk/hkuto/record/B37595866.
Повний текст джерелаLau, Wing-yi, and 劉穎兒. "New recursive parameter estimation algorithms in impulsive noise environment with application to frequency estimation and systemidentification." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B37595866.
Повний текст джерелаHrabina, Martin. "Akustická detekce výstřelů ve volné přírodě." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221340.
Повний текст джерелаRiffi, Temsamani Mohamed Saïd. "Analyse statistique des bruits impulsifs et estimation d'un signal en présence de bruit impulsif." Nancy 1, 1993. http://www.theses.fr/1993NAN10023.
Повний текст джерелаYeung, W. K. "Microwave imaging with impulsive signals." Thesis, University of Cambridge, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382334.
Повний текст джерелаWang, Xun [Verfasser]. "Model based signal enhancement for impulse response measurement / Xun Wang." Aachen : Hochschulbibliothek der Rheinisch-Westfälischen Technischen Hochschule Aachen, 2014. http://d-nb.info/1051500605/34.
Повний текст джерелаLinarès, Georges. "Détection de ruptures et classification automatique dans un environnement de bruits impulsifs." Avignon, 1998. http://www.theses.fr/1998AVIG0118.
Повний текст джерелаAramaki, Mitsuko. "Analyse-synthèse de sons impulsifs : approches physique et perceptive." Aix-Marseille 2, 2003. http://www.theses.fr/2003AIX22047.
Повний текст джерелаLi, Liwei. "Microwave Photonic Signal Processing Techniques based on Finite Impulse Response Configurations." Thesis, The University of Sydney, 2013. http://hdl.handle.net/2123/9477.
Повний текст джерелаCampbell, Roy Lee. "Performance assessment of the finite impulse response Adaptive Line Enhancer." Diss., Mississippi State : Mississippi State University, 2002. http://library.msstate.edu/etd/show.asp?etd=etd-05222002-085151.
Повний текст джерелаChu, Xiaoli. "Ultra-wideband direct-sequence impulse radio wireless communications /." View abstract or full-text, 2005. http://library.ust.hk/cgi/db/thesis.pl?ELEC%202005%20CHU.
Повний текст джерелаN'Da, Patrick Amoikon. "Impact du bruit impulsif sur les transmissions SDSl." Rennes, INSA, 2005. http://www.theses.fr/2005ISAR0024.
Повний текст джерелаImpulse noises represent an important impairment for SDSL transmissions specially for real-time applications. Nevertheless, the modification of SDSL system structure allows, at the cost of some more delay, to increase the robustness against impulse noises. In the first chapter of this thesis the principles and the global structure of SDSL is presented. The second chapter show the impact of impulse noises over SDSL transmission. The third chapter is devoted to some techniques involved in the correction of impulse noises effect. The fourth chapter presents in details an ARQ technique proposed to reduce the impulse noises effects over SDSL. The fifth and last chapter deals with performance increase with respect to the data rate in multipair. This performance improvement is achieve with the help of crosstalk cancellation. The data rate increase the relatively important for high data rate. Other algorithm much more faster can applied to this system in the same manner to achieve better performance and improve the work done
Galindo, Romero Marta. "Spatial Variations in the Acoustic Peak Pressure of Impulsive Low Frequency Anthropogenic Signals in Underwater Marine Environments." Thesis, Curtin University, 2017. http://hdl.handle.net/20.500.11937/59661.
Повний текст джерелаMurphy, Damian Thomas. "Digital waveguide mesh topologies in room acoustics modelling." Thesis, University of York, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313846.
Повний текст джерелаKahaei, Mohammad Hossein. "Performance analysis of adaptive lattice filters for FM signals and alpha-stable processes." Thesis, Queensland University of Technology, 1998. https://eprints.qut.edu.au/36044/7/36044_Digitised_Thesis.pdf.
Повний текст джерелаSaaifan, Khodr [Verfasser]. "Advanced Detection Schemes of Digital Signals in Impulse Noise / Khodr Saaifan." Aachen : Shaker, 2015. http://d-nb.info/1080763694/34.
Повний текст джерелаPaluri, Suraj, and Sandeep Patluri. "A Study of Impulse Response System Identification." Thesis, Karlstad University, Faculty of Technology and Science, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-1069.
Повний текст джерелаIn system identification, different methods are often classified as parametric or non-parametric methods. For parametric methods, a parametric model of a system is considered and the model parameters are estimated. For non-parametric methods, no parametric model is used and the result of the identification is given as a curve or a function.
One of the non-parametric methods is the impulse response analysis. This approach is dynamic simulation. This thesis introduces a new paradigm for dynamic simulation, called impulse-based simulation. This approach is based on choosing a Dirac function as input, and as a result, the output will be equal to the impulse response. However, a Dirac function cannot be realized in practice, and an approximation has to be used. As a consequence, the output will deviate from the impulse response. Once the impulse response is estimated, a parametric model can be fitted to the estimation.
This thesis aims to determine the parameters in a parametric model from an estimated impulse response. The process of investigating the models is a critical aspect of the project. Correlation analysis is used to obtain the weighting function from the estimates of covariance functions.
Later, a relation formed between the parameters and the estimates (obtained by correlation analysis) in the form of a linear system of equations. Furthermore, simulations are carried out using Monte Carlo for investigating the properties of the two step approach, which involves in correlation analysis to find h-parameters and least squares and total least squares methods to solve for the parameters of the model. In order to evaluate the complete capability of the approach to the noise variation a study of signal to noise ratio and mean, mean square error and variances of the estimated parameters is carried out.
The results of the Monte Carlo study indicate that two-step approach can give rather accurate parameter estimates. In addition, the least squares and total least squares methods give similar results.
Wu, Tsan-Ming. "Statistical impulse reponse modeling and dereverberation for room acoustics." Diss., Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/14932.
Повний текст джерелаWu, Qing. "Characterization of Impulse Noise and Hazard Analysis of Impulse Noise Induced Hearing Loss using AHAAH Modeling." OpenSIUC, 2014. https://opensiuc.lib.siu.edu/theses/1467.
Повний текст джерелаSahmoudi, Mohamed. "Processus alpha-stables pour la séparation et l'estimation robustes des signaux non-gaussiens et/ou non-stationnaires." Paris 11, 2004. http://www.theses.fr/2004PA112283.
Повний текст джерелаIn this thesis, we introduce some new blind source separation approches for heavy-tailed and/or nonstationary signals. The impulsive, or heavy-tailed signals are modeled as real-valued symmetric alpha-stable processes characterized by infinite second and higher order moments. For the heavy-tailed signals separation, the proposed approaches uses the minimum dispersion criterion, the normalized statistics, some contrast function and a semi-parametric version of the maximum likelihood principle respectively. For the nonstationary FM signals in heavy-tailed noise, we propose some parametric and non-parametric methodes. Parametric methodes are based on the polynomial phase transform and the subspace method MUSIC. The non-parametric methodes are based on the use of the time-frequency representation of the signals. In a first appraoch, we use a preprocessing stage to mitigate the impulsive noise effect, while in the second one we design a new robust time-frequency distribution
Schulte, Walter B. "The frequency response, impulse response, and transfer function of an ocean waveguide /." Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Jun%5FSchulte.pdf.
Повний текст джерелаThesis advisor(s): Lawrence J. Ziomek. Includes bibliographical references (p. 47). Also available online.
Salmer, Christophe. "Contribution à l'étude de la stabilité d'impulsion à impulsion d'un émetteur état solide pour radar." Lille 1, 1999. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/1999/50376-1999-275.pdf.
Повний текст джерелаFeirstine, Kelly Renee. "A Study of the Impact of Hardware Design Choices on the System Impulse Response of a Signal-level Radar Simulation." Wright State University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=wright1156968416.
Повний текст джерелаLogette, Patrice. "Etude et réalisation d'un processeur acousto-optique numérique de traitement des signaux." Valenciennes, 1997. https://ged.uphf.fr/nuxeo/site/esupversions/bbfd31df-2499-46a6-843d-52f346b1db41.
Повний текст джерелаChaouki, Saïd. "Logiciel de traitement du signal." Rouen, 1987. http://www.theses.fr/1987ROUES024.
Повний текст джерелаRivenq, Atika. "Etude de systèmes anti-collision basés sur les techniques radar pour véhicules routiers." Valenciennes, 1996. https://ged.uphf.fr/nuxeo/site/esupversions/08c0d176-22f2-43e1-9790-c2656a116cac.
Повний текст джерелаAugust, Nathaniel J. "Medium Access Control in Impulse-Based Ultra Wideband Ad Hoc and Sensor Networks." Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/27594.
Повний текст джерелаPh. D.
Mercure, Virginie. "La peinture comme impulsion pour un dynamisme psychique." Thesis, Université Laval, 2013. http://www.theses.ulaval.ca/2013/29340/29340.pdf.
Повний текст джерелаGiorgadze, Nino. "Factors Influencing Impulse Buying in Retail Stores." Master's thesis, Vysoká škola ekonomická v Praze, 2014. http://www.nusl.cz/ntk/nusl-193315.
Повний текст джерелаTesfamariam, Gebremichael Te-ame [Verfasser], Abdelhak M. [Akademischer Betreuer] Zoubur, and Dilip S. [Akademischer Betreuer] Mali. "Signal Processing Techniques for Landmine Detection Using Impulse Ground Penetrating Radar (ImGPR) / Gebremichael Te-ame Tesfamariam. Betreuer: Abdelhak M. Zoubur ; Dilip S. Mali." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2013. http://d-nb.info/1107770718/34.
Повний текст джерелаMauuary, Didier. "Détection, estimation et identification pour la tomographie acoustique océanique : étude théorique et expérimentale." Grenoble INPG, 1994. http://www.theses.fr/1994INPG0033.
Повний текст джерелаSingh, Latchman. "Speech enhancement for forensic applications." Thesis, Queensland University of Technology, 1998. https://eprints.qut.edu.au/36080/1/36080_Singh_1998.pdf.
Повний текст джерелаJaoua, Nouha. "Estimation Bayésienne non Paramétrique de Systèmes Dynamiques en Présence de Bruits Alpha-Stables." Phd thesis, Ecole Centrale de Lille, 2013. http://tel.archives-ouvertes.fr/tel-00929691.
Повний текст джерелаNascimento, Felipe da Trindade do. "Algoritmos Genéticos para Síntese de Filtros Aplicados em Controle por Modo Deslizante." Universidade do Estado do Rio de Janeiro, 2010. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=7527.
Повний текст джерелаThis thesis proposes the application of genetic algorithms for the synthesis of filters which modulate signals of variable structure sliding mode controllers. The modulation of the control signal reduces the amplitude of the output signal and thus can reduce power consumption and chattering. These filters are also applied to systems with parametric uncertainties and unmeasured state variables. In these systems, the uncertainties can impair the accurate estimation of the state by means of observers. For the synthesis of these filters, it is necessary to obtain the envelope which is the maximum norm of each impulse response admissible for the system. After this step, a filter is synthesized to be an upper bound for the envelope. In this study, three methods of search of the envelope by genetic algorithms were developed. One of these methods has been giving the best results and needs the least computational time.
Barbounaki, Stavroula. "Modélisation et traitement numérique des impulsions électriques générées par le passage des globules rouges à travers des micropores." Paris 5, 1997. http://www.theses.fr/1997PA05S030.
Повний текст джерелаFayolle, Gérard. "Conceptions et applications de circuits à mémoire de courant basse tension." Grenoble 1, 1998. http://www.theses.fr/1998GRE10151.
Повний текст джерелаSchulte, Walter B. III. "The frequency response, impulse response, and transfer function of an ocean waveguide." Thesis, Monterey, California. Naval Postgraduate School, 2004. http://hdl.handle.net/10945/1516.
Повний текст джерелаIn this thesis, the ocean was modeled as a waveguide with an ideal pressure - release surface, and an ideal rigid bottom. The ocean waveguide was then treated as a linear, time - invariant, space - variant (TISV) filter or communication channel. The filter is time - invariant because no motion was modeled and because the properties of the ocean were assumed to be constant. The filter is space - variant because of the presence of the two boundaries, that is, the ocean surface and ocean bottom. This thesis investigates the ocean as a linear TISV filter by evaluating 1) the complex frequency response, 2) the impulse response, and 3) the transfer function of the ocean with respect to depth. It is shown that the TISV impulse response of the ocean contains information that can be used to help localize a target in range and whether the target is above or below the receiver. Computer simulation results were obtained by evaluating the three filter functions for several different test cases.
Ensign, United States Navy
Fourt, Olivier. "Traitement des signaux à phase polynomiale dans des environnements fortement bruités : séparation et estimation des paramètres." Paris 11, 2008. http://www.theses.fr/2008PA112064.
Повний текст джерелаThe research works of this thesis deal with the processings of polynomial phase signals in heavily corrupted environnements, whatsoever noise with high levels or impulse noise, noise modelled by the use of alpha-stable laws. Noise robustness is a common task in signal processing and if several algorithms are able to work with high gaussian noise level, the presence of impulse noise often leads to a great loss in performances or makes algorithms unable to work. Recently, some algorithms have been built in order to support impulse noise environnements but with one limit: the achievable results decrease with gaussian noise situations and thus needs as a first step to select the good method versus the kind of the noise. So one of the key points of this thesis was building algorithms who were robust to the kind of the noise which means that they have similar performances with gaussian noise or alpha-stable noise. The second key point was building fast algorithms, something difficult to add to robustness
Peterek, Jan. "Časově proměnná filtrace signálů EKG." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220042.
Повний текст джерелаRouissi, Fatma. "Optimisation de la couche PHY des systèmes de communication sur le réseau d'énergie en présence de bruit impulsif." Thesis, Lille 1, 2008. http://www.theses.fr/2008LIL10042/document.
Повний текст джерелаThis thesis deals with the study and the suggestion of new solutions to improve high bit rate power line communications. A special interest is given to impulsive noise presence which is the most difficult transmission constraint to overcome. The first aim of this work is to analyze statistically measure results then to propose a simple and efficient noise model that will be used in a simulation tool to define accurately suitable noise cancellation techniques. Experimental measurements done in both Indoor and vehicle PLC channels allowed to deduce noise characteristics in the two environments, to compare these characteristics and to prove high effect of Indoor impulsive noise. ln next step, three models were studied: c1ass A of Middleton mode 1, Markov chains-based model and the stochastic approach. Then, a new hybrid model, that combines the stochastic approach and Markov chains, was proposed. This model is simple, easy to implement and allows a satisfying fitting to noise temporal characteristics. Comparisons of models to measured noise show the efficiency of the hybrid approach that will be used afterward. The second aim of this work is to defme new appropriate and cost-effective methods to compensate impulsive noise effect. The frrst solution is to add a noise canceller module in the PLC system receiver. This solution was studied by proposing techniques to cancel noise by estimating its power. The second solution is to use error correction methods. ln this case, three channel coding structures were developed and their performances were studied in the presence of different impulsive noise scenarios