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The Implementation and Research on Coding Decoding RS Code

Author: YaoYao
Tutor: FuYuZhuo；HuPengCheng
School: Shanghai Jiaotong University
Course: Software Engineering
Keywords: RS code CCSDS BM iterative method FPGA
CLC: TN911.22
Type: Master's thesis
Year: 2008
Downloads: 75
Quote: 0
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Abstract


Error correction coding techniques have been widely used in areas such as satellite communications, mobile communications and digital storage . The RS code is used as one of the most important one of the code class , and having excellent in the ability of correcting a random error and burst error , the Advisory Committee for Space Data Systems (CCSDS) used as a standard . Of this thesis is to use hardware and software implementation in line with the the CCSDS standard RS code encryption . The focus of this research is the RS decoding . The RS decoder designed primarily include the syndrome computation errors polynomial money search and Forney algorithm . BM algorithm for key polynomial time in exchange for the idea of the area , iteration is divided into several cycles to complete , reduce the complexity of the hardware . The subject using a multi-stage pipeline (pipe-line) structure , optimize the finite field constant multiplier , the inverse multiplexing . The results show that the adoption of these technologies to improve the efficiency of the RS encoding and decoding , and save the hardware resources . This paper first describes the background and coding theory , and then to introduce RS encoding and decoding algorithm and finite field multiplication algorithm , final hardware circuit design RS codec . Simulation and actual circuit test showed that the codec to achieve the expected performance of the error correction . Satellite communications are moving in the development of high-speed direction of this thesis is to meet the demand for this kind of development , and application to satellite communications , high-speed data transmission system .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Communication theory > Information Theory > Channel coding theory
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