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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

Combating channels with long impulse response using combined turbo equalization and turbo decoding.

January 2000 (has links)
by Chan Yiu Tong. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2000. / Includes bibliographical references (leaves 56-[59]). / Abstracts in English and Chinese. / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Communications and Coding Technology --- p.2 / Chapter 1.2 --- The Emerge of Turbo Codes --- p.3 / Chapter 1.3 --- The Extension of Turbo Principle --- p.3 / Chapter 1.4 --- Receiver Structures for Practical Situations --- p.4 / Chapter 1.5 --- Thesis Overview --- p.5 / Chapter 2 --- ISI Channel Model and Channel Equalization --- p.6 / Chapter 2.1 --- A Discrete Time ISI Channel Model --- p.6 / Chapter 2.1.1 --- Optimum Maximum Likelihood Receiver --- p.8 / Chapter 2.1.2 --- The Whitened Matched Filter --- p.11 / Chapter 2.2 --- Equalization Techniques for Combating ISI --- p.13 / Chapter 2.2.1 --- Linear MMSE Equalizer --- p.13 / Chapter 2.2.2 --- MLSE Equalizer in Viterbi Algorithm --- p.15 / Chapter 3 --- An Overview of Turbo Codes --- p.18 / Chapter 3.1 --- The Turbo Encoder --- p.19 / Chapter 3.2 --- The Turbo Interleaver --- p.21 / Chapter 3.3 --- The Iterative Decoder --- p.22 / Chapter 3.3.1 --- The MAP Algorithm --- p.23 / Chapter 3.3.2 --- The Max-Log MAP Algorithm --- p.25 / Chapter 3.3.3 --- The Log-MAP Algorithm --- p.28 / Chapter 4 --- Receivers for Channels with Long Impulse Responses --- p.29 / Chapter 4.1 --- Shortcomings for the Existing Models --- p.30 / Chapter 4.2 --- Proposed System Architecture --- p.30 / Chapter 4.2.1 --- Optimized Model for Channel Shortening Filter --- p.31 / Chapter 4.2.2 --- Method One - Separate Trellises for EQ and DEC --- p.35 / Chapter 4.2.3 --- Method Two - Combined Trellises for EQ and DEC --- p.37 / Chapter 5 --- Performance Analysis --- p.40 / Chapter 5.1 --- Simulation Model and Settings --- p.40 / Chapter 5.2 --- Performance Expectations --- p.43 / Chapter 5.3 --- Simulation Results and Discussions --- p.49 / Chapter 6 --- Concluding Remarks --- p.55 / Bibliography --- p.56
32

Signal reconstruction from phase

Haran, Pranatharthi January 2010 (has links)
Typescript (photocopy). / Digitized by Kansas Correctional Industries
33

Lectures on communication theory

January 1952 (has links)
D. Gabor. / "April 3, 1952." Lectures from the Research Laboratory of Electronics, Massachusetts Institute of Technology, Fall Term, 1951. / Bibliography: p. 47-48. / Army Signal Corps Contract No. DA36-039 sc-100 Project No. 8-102B. Dept. of the Army Project No. 3-99-10-022.
34

Signal-to-noise ratio in correlation detectors

January 1951 (has links)
R.M. Fano. / "November 18, 1948." / Bibliography: p. 13. / Army Signal Corps Contract No. W36-039 sc-32037 Project No. 102B. Dept. of the Army Project No. 3-99-10-022.
35

Data compression with particular applications to video signals.

Tsui, Stephen S. T. January 1972 (has links)
No description available.
36

Non-equiprobable multi-level coding for the additive white Gaussian noise channel with Tikhonov phase error

Ni, Li, January 2005 (has links) (PDF)
Thesis (Ph.D.)--Washington State University, December 2005. / Includes bibliographical references (p. 79-85).
37

Bandwidth extension algorithm for multiple deterministic systems /

Xu, Didi. January 2006 (has links)
Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2006. / Includes bibliographical references (leaves 94-96). Also available in electronic version.
38

State variables and communication theory

January 1970 (has links)
[by] Arthur B. Baggeroer. / Bibliography: p. 187-191.
39

'n Objek-georiënteerde benadering in die daarstelling van 'n uitsaainetwerk-beplanningsmodel vir die SAUK : seindistribusie

Van Aswegen, Wouter 14 April 2014 (has links)
M.Tech. (Computer Science) / The Signal Distribution department of the SABC does planning regarding the signal distribution or broadcasting network of the SABC. In order to do effective planning a tool had to be developed to assist in the planning of the broadcasting network. The Rand Afrikaans University was asked to supply a student to analyze the problems surrounding the development of such a tool and supply the SABC with a solution to the problems. The problems surrounding the development of a broadcast network planning model were the availability and accuracy of the information needed for planning. The data needed was spread throughout the country with only manual means to transport the data. The solution to the problem would be to develop a system to cope with the decentralized database and to gather the data in order to supply valuable planning information. To provide a framework for the solution of the planning problem, a broadcasting network was compared with a computer network. The comparison revealed a number of parallels between a broadcasting and a computer network. As a result of the resemblance between the two types of networks, a foundation for the development of a planning model for a broadcasting network could be identified. The ISO IS OSI approach was used as a foundation for the development of the model. The principles of the seven layers along with the three network management models The broadcasting network model was developed using the principles of the OSI approach, object orientation, geographical information systems and graphical user interfaces. A "package" was defined to assist in the logical data flow of the model. The package contains the specific data used in a calculation. A package containing information can be split or combined according to strict rules. The effective management of the package is a central issue in the development of the planning model. A prototype system was developed on PC-Arc/Info, a PC based GIS. The prototype's aim was to prove that the principles used in the model could be implemented successfully. As the developed system was intended to serve as a prototype, it did not implement the full functionality of the model, but only the functions necessary to prove the viability of the model.
40

Data compression with particular applications to video signals.

Tsui, Stephen S. T. January 1972 (has links)
No description available.

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