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Digital communication signal modulation recognition and parameter estimation

Author: SongChengSen
Tutor: LiShiJu
School: Zhejiang University
Course: Information and Communication Engineering
Keywords: Modulation recognition Blind receiver Parameter Estimation
CLC: TN911
Type: Master's thesis
Year: 2006
Downloads: 523
Quote: 14
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Abstract


Modulation recognition of communication signals and blind receiver design , the military ( such as electronic countermeasures ) and civilian ( such as software defined radio ) fields have broad application prospects . In this paper, these two issues are studied. Proposed a complete digital communication signal modulation recognition algorithm, which has identified many types , the correct recognition rate characteristics. On this basis , the software radio technology combined with the design of a linear digital modulation methods for blind receivers. The system can be completely unknown signal parameters in the case of application of blind estimation algorithm for signal parameter estimation, as well as modulation recognition . The text in a variety of algorithms have been carried out simulation performance verification . Text is divided into five chapters. The first chapter briefly describes the modulation recognition software radio technology with the basic knowledge and research status . The second chapter describes the used modulation recognition and parameter extraction problems concerning basic theories and methods . The third chapter discusses the digital communication signal modulation recognition problem , gives a complete algorithm. The fourth chapter details the design of a linear modulation method for blind receivers, the signal is given the key parameter estimation blind estimation algorithm and apply an actual signal acquisition performance verified . Chapter V of the full text is summarized , given the lack of research and possible research directions .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Communication theory
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