一种具有低相关特性的分块交织器的设计  

A Design Method of Block Interleaver with Low Correlation

作　　者：樊平毅[1] 张金杰 曹志刚[1] 

机构地区：[1]清华大学电子工程系

出　　处：《通信学报》1998年第4期50-54,共5页Journal on Communications

基　　金：国家自然科学基金

摘　　要：Ｔｕｒｂｏｃｏｄｅｓ是近年信道编码理论研究的热点课题。交织器的设计问题是Ｔｕｒｂｏｃｏｄｅｓ研究中的主要问题之一。本文结合Ｔｕｒｂｏｃｏｄｅｓ在个人通信中的应用问题，对分块交织方法进行了研究，给出了一种新的交织器的设计方案，理论分析和计算机仿真证实了此方案在实现上和相关性上都具有良好的性能。同时，本文从理论上解释了在交织长度很大时，交织器的选择对Ｔｕｒｂｏｃｏｄｅｓ译码性能几乎没有影响的原因。Turbo codes is an interesting topic in the channel coding theory recently, and interleaver design is one of the important problems in turbo codes. In this paper, the application of turbo codes in personal communication is considered, and the problem of block interleaver design is discussed. A new design method of block interleaver is proposed. The results of the theoretical analysis and computer simulation have shown that the proposed interleaver has better performances in correlation and practical implementation. Moreover, It reveals the reason why the affection of the interleaver selection on the performance of turbo codes can be negligible when the length of the interleaver is very large.

关 键 词：TURBOCODES 交织器 个人通信 信道编码 

分 类 号：TN911.22[电子电信—通信与信息系统]