长距离电缆通信差错控制的研究与实现
文献类型:学位论文
作者 | 宋少华 |
学位类别 | 博士 |
答辩日期 | 2005 |
授予单位 | 中国科学院研究生院—声学研究所 |
授予地点 | 中国科学院研究生院—声学研究所 |
关键词 | 纠错编码 BM算法 交织编码 |
其他题名 | The Research and Realization of Error Control Mechanism Based on Long Distance Communication System over Cable |
中文摘要 | 纠错编码技术是提高信息传输可靠性的重要手段,它已成为数据通信系统中的关健技术而被广泛采用。在通信领域中,针对不同的物理信道以及不同的数据传输要求,采用不同的纠错编码技术。CRC码是广泛用于帧校验的一种缩短循环码;Reed-Solomon(RS)码具有同时纠正突发错误和随机错误的能力,其纠错能力达到了线性分组码的极限,是被广泛应用于数据通信和数据存储的一种纠错码;交织/解交织编码技术则是有效的抗突发差错的编码技术。本文详细的阐述了纠错编码的原理,深入地研究了循环码、RS码以及交织编码技术。本文着重研究了Rs码的不同译码方案(包括Peterson-Gorenstein-Zierler算法,Berlekamp-Massey算法,Welch-Berlekamp算法,Euclidean算法以及频域算法),并应用SIMULINK对RS码进行了仿真。分析了几种纠错编码的硬件实现方案,针对本课题选用DSP汇编语言编程实现了差错控制。最后针对DSP编程的特点,提出几点可以提高其效率的方法。 |
英文摘要 | Error Correcting technology is an important means to enhance the reliability of data transmission, which has become a key technology in data communication system. Based on different physical channel and different transmission demand, different Error Correcting Code should be applied. CRC is widely used in frame check. Reed-Solomon codes has the ability of correcting burst error and random error synchronously, and its correcting capability reaches to the utmost correcting capability while using block correcting codes, so RS codes is a correcting code widely used in data transmission and data storage system. Interleaving and deinterleaving are useful encoding technology to reduce errors caused by burst errors in a communication system. Firstly, the principle of error correcting is detailed in this thesis in which CRC code, Reed-Solomon code and Interleaving code are also particularly studied in this paper. And various RS decoder are especially studied (including Peterson-Gorenstein-Zierler algorithm , Berlekamp-Massey algorithm, Welch-Berlekamp algorithm, Euclidean algorithm and Frequency Domain Decoding). In addition RS code is simulated by SIMULINK and several realization schemes are analyzed. Further more Error control is realized using DSP assembly language and several methods are proposed which can improve its efficiency according to its characteristics. |
语种 | 中文 |
公开日期 | 2011-05-07 |
页码 | 61 |
源URL | [http://159.226.59.140/handle/311008/968] ![]() |
专题 | 声学研究所_声学所博硕士学位论文_1981-2009博硕士学位论文 |
推荐引用方式 GB/T 7714 | 宋少华. 长距离电缆通信差错控制的研究与实现[D]. 中国科学院研究生院—声学研究所. 中国科学院研究生院—声学研究所. 2005. |
入库方式: OAI收割
来源:声学研究所
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