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Soundfield analysis and synthesis: recording, reproduction and compression.Wang, Shuai, School of Electrical Engineering & Telecommunication, UNSW January 2007 (has links)
Globally, the ever increasing consumer interest in multichannel audio is a major factor driving the research intent in soundfield reconstruction and compression. The popularity of the well commercialized 5.1 surround sound system and its 6-Channel audio has been strongly supported by the advent of powerful storage medium, DVD, as well as the use of efficient telecommunication techniques. However, this popularity has also revealed potential problems in the development of soundfield systems. Firstly, currently available soundfield systems have rather poor compatibility with irregular speaker arrangements. Secondly, bandwidth requirement is dramatically increased for multichannel audio representation with good temporal and spatial fidelity. This master???s thesis addresses these two major issues in soundfield systems. It introduces a new approach to analyze and sysnthesize soundfield, and compares this approach with currently popular systems. To facilitate this comparison, the behavior of soundfield has been reviewed from both physical and psychoacoustic perspectives, along with an extensive study of past and present soundfield systems and multichannel audio compression algorithms. The 1th order High Spatial Resolution (HSR) soundfield recording and reproduction has been implemented in this project, and subjectively evaluated using a series of MUSHRA tests to finalize the comparison.
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Multichannel blind deconvolutionMa, Liang Suo. January 2004 (has links)
Thesis (Ph.D.)--University of Wollongong, 2004. / Typescript. Includes bibliographical references: p. 199-206.
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Channel assignment and routing in multi-channel multi-interface wireless networksChiu, Hon-sun., 邵漢新. January 2009 (has links)
published_or_final_version / Electrical and Electronic Engineering / Doctoral / Doctor of Philosophy
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The multiple access broadcast channel : protocol and capacity considerations.Capetanakis, John Ippocratis, 1944- January 1977 (has links)
Microfiche copy available in the Institute Archives and Barker Engineering Library. / Vita. / Thesis (Ph. D.)--Massachusetts Institute of Technology. Dept. of Engineering and Computer Science, 1977. / Includes bibliographical references. / by John Ippocratis Capetanakis. / Ph.D.
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Channel assignment and routing in multi-channel multi-interface wireless networksChiu, Hon-sun. January 2009 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2009. / Includes bibliographical references (leaves 136-151). Also available in print.
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Adaptive Joint Source/Channel Rate Allocation Policies For Delay Sensitive Applications Over Fading ChannelsThejaswi, Chandrashekhara P S 10 1900 (has links) (PDF)
No description available.
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Performance analysis of CDMA systems in multipath channelsCameron, Rick 31 October 2009 (has links)
This thesis provides a performance analysis of Code Division Multiple Access (COMA) systems in non-ideal conditions. Two benefits of CDMA include resistance to multipath fading and graceful performance degradation in the presence of multiple access interference. These benefits have made CDMA especially attractive for cellular telephone systems and other wireless networks. This thesis project is divided into four tasks.
The first objective is to implement a channel model incorporating multiple access interference and to verify the results. A method is used that obtains arbitrarily tight upper and lower bounds on the average probability of error without using a Gaussian approximation. The second objective is to model imperfect power control. The third objective is to incorporate multipath effects into this model using a discrete number of multipath components with some known probability distribution. This modeling is based on measurements taken in indoor and outdoor channels. The fourth objective is a performance analysis for a RAKE receiver applied to outdoor channels. / Master of Science
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Coding and capacity for additive white Gaussian noise multi-user channels with feedbackOzarow, Lawrence Howard January 1979 (has links)
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1979. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING. / Vita. / Includes bibliographical references. / by Lawrence Howard Ozarow. / Ph.D.
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Protocols for multi-access channels with continuous entry and noisy feedbackCruz, Rene Leonardo January 1982 (has links)
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1982. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING. / Includes bibliographical references. / by Rene Leonardo Cruz. / M.S.
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An efficient contention resolution algorithm for multiple access channelsMosely, Jeannine January 1979 (has links)
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1979. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING. / Includes bibliographical references. / by Jeannine Mosely. / M.S.
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