Turbo码交织器性能分析

Ｔｕｒｂｏ码是近年来信道编码理论研究的热点课题，而交织器的设计对Ｔｕｒｂｏ码的性能有很大的影响。本文介绍了一种Ｔｕｒｂｏ码交织器性能的分析方法，并对以（７，４）汉明码为分量码，交织长度为１６的（４０，１６）Ｔｕｒｂｏ汉明码作分析，给出理论分析及采用文献〔２〕的迭代方法的计算机仿真实验的结果，由此证实了这种方法的有效性。仿真结果还表明，文献〔１〕的评价交织器性能的方法比文献〔３〕的方法更可靠，说明传

Interleaver Evaluation of Turbo Block Code

The design of the interleaver is important to the performance of Turbo Codes. In this paper the encoding and iterative decoding of Turbo Block Code is discussed with a focus on the way to evaluate the performance of Turbo Code interleaver. It gives a theoretical analysis as well as the result of computer simulations. The effectiveness for evaluating Turbo Code interleaver in such way is proved. Moreover, through comparison with other evaluating methods, a conclusion is drawn that when evaluating the interleaver of Turbo Code, the traditional way, which .utilizes relative coefficients, has its own limitations and may not be accurate and effective.