Rozprawy doktorskie na temat „Error control”
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Abdelhamid, Awad Aly Ahmed Sala. "Quantum error control codes". Diss., Texas A&M University, 2008. http://hdl.handle.net/1969.1/85910.
Pełny tekst źródłaZhou, Tingxian, Xiaohua Yin i Xianming Zhao. "A New Error Control Scheme for Remote Control System". International Foundation for Telemetering, 1994. http://hdl.handle.net/10150/611658.
Pełny tekst źródłaHow to rise the reliability of the data transmission is one of the main problem faced by modern digital communication designers. This paper studies the error-correcting codes being suitable for the channel existing both the random and burst error. A new error control scheme is given. The scheme is a concatenated coding system using an interleaved Reed-Solomon code with symbols over GF (24) as the outer code and a Viterbi-decoded convolutional code as the inner code. As a result of the computer simulation, it is proved that the concatenated coding system has a output at a very low bit error rate (BER)and can correct a lot of compound error patterns. It is suitable for the serious disturb channel existing both the random and burst error. This scheme will be adopted for a remote control system.
Yankopolus, Andreas George. "Adaptive Error Control for Wireless Multimedia". Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5237.
Pełny tekst źródłaJoe, Inwhee. "Error control for wireless ATM networks". Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/15643.
Pełny tekst źródłaPopplewell, Andrew. "Combined line and error control coding". Thesis, Bangor University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236394.
Pełny tekst źródłaMatrakidis, Chris. "Error control coding for constrained channels". Thesis, University College London (University of London), 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324963.
Pełny tekst źródłaIshihara, Abraham K. "Feedback error learning in neuromotor control /". May be available electronically:, 2008. http://proquest.umi.com/login?COPT=REJTPTU1MTUmSU5UPTAmVkVSPTI=&clientId=12498.
Pełny tekst źródłaPu, Jianfeng. "Error Control in Wireless ATM Network". Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/28114.
Pełny tekst źródłaPh. D.
Chen, Bainan. "Hardware Implementation of Error Control Decoders". Case Western Reserve University School of Graduate Studies / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=case1209531418.
Pełny tekst źródłaGrymel, Martin-Thomas. "Error control with binary cyclic codes". Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/error-control-with-binary-cyclic-codes(a5750b4a-e4d6-49a8-915b-3e015387ad36).html.
Pełny tekst źródłaBai, Chenyao. "Error control in bacterial quorum communications". Thesis, University of Warwick, 2016. http://wrap.warwick.ac.uk/80028/.
Pełny tekst źródłaEriksson, Oskar. "Error Control in Wireless Sensor Networks : A Process Control Perspective". Thesis, Uppsala universitet, Signaler och System, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-160784.
Pełny tekst źródłaRice, Michael D. (Michael David). "Adaptive error control over slowly varying channels". Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/13396.
Pełny tekst źródłaZhang, Liang. "Error control coding in ADSL DMT system". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0001/MQ36760.pdf.
Pełny tekst źródłaNieuwenhuis, Sander Tjalling. "Control failures, error processing, and cognitive aging". [Amsterdam : Amsterdam : EPOS, experimenteel-psychologische onderzoekschool] ; Universiteit van Amsterdam [Host], 2001. http://dare.uva.nl/document/58548.
Pełny tekst źródłaCatterall, Noel James. "Public key cryptosystems based error control coding". Thesis, Lancaster University, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.538580.
Pełny tekst źródłaIves, Robert W. "Error Control Coding for Multi-Frequency Modulation". Thesis, Monterey, California: Naval Postgraduate School, 1990. http://hdl.handle.net/10945/27762.
Pełny tekst źródłaMulti-frequency modulation (MFM) has been developed at NPS using both quadrature-phase-shift-keyed (QPSK) and quadrature-amplitude-modulated (QAM) signals with good bit error performance at reasonable signal-to-noise ratios. Improved performance can be achieved by the introduction of error control coding. This report documents a Fortran simulation of the implementation of error control coding into an MFM communication link with additive white Gaussian noise. Four Reed-Solomon codes were incorporated, two for 16-QAM and two for 32- QAM modulation schemes. The error control codes used were modified from the conventional Reed-Solomon codes in that one information symbol was sacrificed to parity in order to use a simplified decoding algorithm which requires no iteration and enhances error detection capability. Bit error rates as a function of SNR and EbN0 were analyzed, and bit error performance waa weighed against reduction in information rate to determine the value of the codes.
Higham, D. J. "Error control in nonstiff initial value solvers". Thesis, University of Manchester, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234210.
Pełny tekst źródłaWang, Hui. "Error equivalence theory for manufacturing process control". [Tampa, Fla.] : University of South Florida, 2007. http://purl.fcla.edu/usf/dc/et/SFE0002252.
Pełny tekst źródłaMcPhail, Bernard N. B. (Bernard Nicolas Bruce) Carleton University Dissertation Engineering Electrical. "Error control coding for land mobile communications". Ottawa, 1986.
Znajdź pełny tekst źródłaMarple, Steven Robert. "Improved error control techniques for data transmission". Thesis, Lancaster University, 2000. http://eprints.lancs.ac.uk/8074/.
Pełny tekst źródłaGUO, WENGE. "GENERALIZED ERROR CONTROL IN MULTIPLE HYPOTHESIS TESTING". University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1186500727.
Pełny tekst źródłaToundas, Panayiotis. "Mobile specific error control (MSEC), a proposed error control scheme for supporting quality of service in wireless ATM networks". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq24254.pdf.
Pełny tekst źródłaDu, Bing Bing. "ECC Video: An Active Second Error Control Approach for Error Resilience in Video Coding". Queensland University of Technology, 2003. http://eprints.qut.edu.au/15847/.
Pełny tekst źródłaSchantin, Andreas [Verfasser]. "Error control for Radio Frequency Identification / Andreas Schantin". Siegen : Universitätsbibliothek der Universität Siegen, 2015. http://d-nb.info/1075911567/34.
Pełny tekst źródłaHetey, Laszlo. "Idealisation error control for aerospace virtual structural testing". Thesis, Cranfield University, 2009. http://hdl.handle.net/1826/4432.
Pełny tekst źródłaSelnes, Stian. "Feedback-based Error Control Methods for H.264". Thesis, Norwegian University of Science and Technology, Department of Electronics and Telecommunications, 2007. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-8802.
Pełny tekst źródłaMany network-based multimedia applications transmit real-time media over unreliable networks, i.e. data may be lost or corrupted on its route from sender to receiver. Such errors may cause a severe degradation in perceptual quality. It is important to apply techniques that improve the robustness against errors, in order to ensure that the receiver is able to playback the media with the best attainable quality. Today, most ER schemes for video employ proactive error resilient encoding. These schemes add redundant information into the encoded video stream in order to increase the robustness against potential errors. Because of this, most proactive schemes suffer from a significant reduction of the coding efficiency. Another approach is to adjust the encoder operations based on feedback information from the decoder, e.g. to repair corrupted regions based on reports of lost data. Feedback-based ER schemes normally improves the coding efficiency compared with proactive schemes. Moreover, they adjust rapidly to time-varying network conditions. The objective of this thesis is to develop and evaluate a feedback-based ER scheme conforming to the H.264/AVC standard and applicable for real-time low-delay video applications. The scheme is referred to as FBIR. The performance of FBIR will be compared with an existing proactive ER scheme, known as IPLR. Special attention is given to the applied feedback mechanism, RTP/AVPF. RTP/AVPF is a new (2006) feedback protocol. Basically, it specifies two modifications/additions to the RTCP: First, it modifies the timing algorithm to enable early feedback, while not exceeding the RTCP bandwidth constraint. Second, new RTCP message types are defined, which provides information useful for error control purposes. FBIR employs RTP/AVPF to provide timely feedback of lost packets from the decoder to the encoder. Upon reception of this feedback, the encoder use a fast error tracking algorithm to locate the erroneous regions. Finally, the regions that are assumed to be visually corrupted after decoding are intra refreshed. IPLR is an ER scheme developed for use in a commercial video communication system. It applies a motion-based intra refresh routine. The comparison is carried out by online simulations with various network environments (0, 1, 3 and 5% loss rate; 50 and 200 ms latency), bit rates (64, 144 and 384 kbit/s) and video sequences. First, the video is encoded and transmitted in real-time to the decoder via a network emulator. This emulator generates the desired network characteristics. The receiver decodes the video in real-time and transmits feedback information back to the encoder. The encoder adjusts its encoding process according to this feedback. The H.264/AVC reference software is modified and used as codec. Finally, objective quality measures are obtained by calculating the PSNR of the decoded videos. In addition, some visual inspection is performed. Isolated measures on the RTP/AVPF transmission algorithm are also performed. These show that RTP/AVPF is able to provide timely feedback for error control purposes for a great number of applications and network environments. However, the experienced feedback delay may be increased by numerous factors, e.g. the network latency, the packet loss rate, the session bandwidth, and the number of receivers. This may decrease the performance of ER schemes utilizing RTP/AVPF. RTP/AVPF is fairly easy to implement since it only modifies the RTCP timing algorithm and adds new RTCP message types. RTP/AVPF may be used in combination with other standards in order to extend the available feedback information. Hence, RTP/AVPF enables timely feedback for use in a wide range of multimedia applications. The PSNR measurements show that FBIR always obtains higher objective quality than IPLR for error free transmissions. This does not, however, necessarily affect the perceptual quality if the bit rate is high. FBIR achieves higher PSNR in other situations as well, such as for very low loss rates, low or medium bit rates, and for sequences with high or medium motion activity. Conversely, IPLR performs better for low motion sequences encoded at high bit rates when the loss rate exceeds a certain threshold, typically about 1%. It is also shown that the performance of FBIR may be reduced if the network latency increases. Visually, the main difference between the two schemes is that FBIR recovers all corrupted regions at one instant, while IPLR performs a gradual refresh. The average time before recovery is somewhat shorter for IPLR. The differences between FBIR and IPLR are mainly caused by two factors. First, using FBIR results in less intra coding and thus better coding efficiency. Second, the FBIR scheme does not repair errors until the encoder receives the feedback. Usually, this happens after IPLR has repaired most of the corrupted region. In short, one can say that FBIR provides medium error robustness and high coding efficiency, in contrast to IPLR's high robustness and low coding efficiency. While FBIR's performance may be reduced by network characteristics such as increased latency, IPLR is unaffected by these factors. For error free transmissions, FBIR does not significantly reduce the coding gain compared with a non-robust encoding scheme. Still, it provides a good robustness against corruption in error-prone networks. Thus, all real-time video systems that benefit from immediate feedback should strongly consider to employ FBIR or similar feedback-based ER schemes.
Lundqvist, Henrik. "Error and Traffic Control for High-Speed Networks". Doctoral thesis, Stockholm : Laboratory for Communication Networks, Department of Signals, Sensors and Systems, KTH, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-468.
Pełny tekst źródłaLakhany, Asif. "Finite element recovery techniques in adaptive error control". Thesis, Brunel University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262505.
Pełny tekst źródłaZhang, Zaichen, i 張在琛. "Network-supported internet multicast congestion and error control". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B31243915.
Pełny tekst źródłaKatsaros, A. "An adaptable high-speed error-control algebraic decoder". Thesis, University of Kent, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374159.
Pełny tekst źródłaDaniel, J. S. "Synthesis and decoding of array error control codes". Thesis, University of Manchester, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374587.
Pełny tekst źródłaDate, Paresh. "Identification for control : deterministic algorithms and error bounds". Thesis, University of Cambridge, 2000. https://www.repository.cam.ac.uk/handle/1810/251751.
Pełny tekst źródłaKawelke, Jens. "Perturbation and error analysis considerations in robust control". Thesis, University of Leicester, 1997. http://hdl.handle.net/2381/30177.
Pełny tekst źródłaRice, Michael. "Applications of Type-I Hybrid-ARQ Error Control". International Foundation for Telemetering, 1992. http://hdl.handle.net/10150/608893.
Pełny tekst źródłaHybrid-ARQ schemes employ the simultaneous application of error-detection and error-correction to combat transmission errors in a data communications system. In this way automatic repeat request (ARQ) and forward error correction (FEC) schemes are combined to offer effective error control. The key to implementation is the identification of reliability information in the FEC decoding process which is used to alter the FEC decoding algorithm. Under certain channel conditions, the realized efficiency is superior to that of either FEC or ARQ.
Ahlkrona, Josefin. "Computational Ice Sheet Dynamics : Error control and efficiency". Doctoral thesis, Uppsala universitet, Avdelningen för beräkningsvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-283442.
Pełny tekst źródłaeSSENCE
Attwal, Preet Singh. "Objective error measure techniques for error analysis and control within the finite element analysis process". Thesis, Cranfield University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340874.
Pełny tekst źródłaDixdotter, Maja. "vemod(en) : -A tribute to the perfect error". Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-172.
Pełny tekst źródłaMartin, Ian. "Practical error control techniques for transmission over noisy channels". Thesis, Lancaster University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287254.
Pełny tekst źródłaFragiacomo, Simon. "Development in channel coding for error and spectral control". Thesis, University College London (University of London), 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265072.
Pełny tekst źródłaFan, Xiaopeng. "Wyner-ziv coding and error control for video communication /". View abstract or full-text, 2009. http://library.ust.hk/cgi/db/thesis.pl?ECED%202009%20FAN.
Pełny tekst źródłaCOSTA, PAULO WERNECK DE ANDRADE. "ADAPTIVE CONTROL OF A MACROECONOMETRIC MODEL WITH MEASUREMENT ERROR". PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1991. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=9400@1.
Pełny tekst źródłaO Planejamento econômico, abordado como um problema de controle, tem por objetivo estabelecer trajetórias ótimas (ou sub-ótimas) para as variáveis que estão sujeitas ao controle do Governo. Isto significa dizer que as varáveis de política (controle) não mais serão arbitrariamente determinadas pelos seus planejadores, sendo agora resultantes de um processo de otimização , tendo em vista o cumprimento de metas previamente estabelecidas. Neste artigo aplicamos um controlador adaptativo de certeza equivalente a um modelo macroeconométrico da economia brasileira, considerando erro de medida nas variáveis de estado. A adoção de um controlador adaptativo é justificada tendo em vista as críticas (principalmente a crítica de Lucas) que recaíram sobre os modelos macroeconométricos estacionários. Uma das formas adequadas de se tratar a não estacionariedade de tais modelos é por intermédio de um controlador adaptativo cujo objetivo será controlar e identificar simultaneamente o modelo em questão. Apresentamos uma pequena resenha das aplicações de controle ótimo e controle adaptativo em problema econômicos, ressaltando a aplicação de ambas as técnicas em modelos macroeconométricos com expectativas racionais. Por intermédio de simulações comparamos a política realmente efetivada pelo governo federal e a política ótima obtida via controle ótimo não adaptativo.
Economic planning, when considered as a control problem, has as its objective establishing optimal (or sub-optimal) trajectories for the variables subject to Government Control. This means that the policy variables (control), instead of being arbitrarily determined by the policymakers, will be the result of an optimization process, with the objective of reaching pre-established goals. In this work a Certainly Equivalence Adaptative Control is applied to a macroeconometric model of the Brazilian economy with measurement error. Since the employment of time-invariant models has been widely criticized (Lucas critique) the model used here is time- varying. An adequate way to treat such a case is through an adaptative control scheme, in which control and identification of the model are perfomed simultaneously. By means of simulations the policy obtained with the adaptative controller is compared to the policy adopted by the Brazilian Government.
Platt, Edward L. "Effects of control error on an adiabatic quantum algorithm". Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/36123.
Pełny tekst źródłaIncludes bibliographical references (p. 59-60).
Noise in adiabatic quantum computation can be modelled as a perturbation of the problem Hamiltonian. For a type of noise called control error, the perturbation can be considered to have the same structure as the problem Hamiltonian. If the problem Hamiltonian, and therefore the noise, are 2-local, then the result of the adiabatic algorithm can be simulated somewhat more efficiently than an algorithm with an arbitrary problem Hamiltonain. Using optimized numerical methods, I present an analysis of the effect of 1-local and 2-local control error on the success of an adiabatic algorithm that solves the agree problem. Furthermore, I examine how the maximum allowable noise, or success threshold, scales with the number of qubits. These analyses suggest the existence of a minimum success threshold for the particular algorithm considered in the presence of only 2-local noise on an arbitrarily large number of qubits, as well as a polynomial decrease in success threshold with the number of qubits.
by Edward L. Platt.
S.B.
Wey, Shou-Jen. "Performance analysis of error control protocols in computer communications /". The Ohio State University, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487681788254348.
Pełny tekst źródłaGhiglino, Pablo. "Quaternion error-based optimal control applied to pinpoint landing". Thesis, University of Surrey, 2016. http://epubs.surrey.ac.uk/809777/.
Pełny tekst źródłaTrichard, Marc Henri. "Study of Trellis Coded Modulation and error control coding". Thesis, University of Ottawa (Canada), 1995. http://hdl.handle.net/10393/9658.
Pełny tekst źródłaShafer, Benjamin Michael. "Error sensor placement for active control of an axial cooling fan /". Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd2119.pdf.
Pełny tekst źródłaAissa, Sonia. "Robust image transmission over wireless CDMA channels using combined error-resilient source coding and channel error control". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq44343.pdf.
Pełny tekst źródłaDuke, Connor R. "Optimization of control source and error sensor locations in free field active noise control /". Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd2087.pdf.
Pełny tekst źródłaDuke, Connor Raymond. "Optimization of Control Source and Error Sensor Locations in Free Field Active Noise Control". BYU ScholarsArchive, 2007. https://scholarsarchive.byu.edu/etd/1169.
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