Turbo码及其译码算法研究  

Research of Turbo codes and decoding algorithm

作　　者：马建[1] 邵朝[1] 

机构地区：[1]西安邮电学院通信与信息工程学院,陕西西安710121

出　　处：《西安邮电学院学报》2010年第5期38-42,56,共6页Journal of Xi'an Institute of Posts and Telecommunications

摘　　要：介绍Turbo码的编译码原理,以及Log-MAP,SOVA译码算法。通过基于MATLAB的仿真实验,比较分析不同译码算法的性能。仿真结果表明,Log-MAP算法能够准确的实现译码,但需以增加译码延时为代价。而SOVA算法的译码速度更快,译码复杂度更低,译码算法更简单,在实际的系统中易于实现。Turbo codes theory,Log-MAP decoding algorithm and SOVA decoding algorithm were introduced.The performances of the different decoding algorithms were compared by the simulation based on MATLAB.The result shows that,Log-MAP decoding algorithm can decoding accurately,but need to increase the decoding delay,the SOVA decoding algorithm is faster in decoding speed,lower in complexity and more simple in algorithm,it will be implemented easily in actual system.

关 键 词：TURBO码 LOG-MAP算法 SOVA算法 

分 类 号：TN911.22[电子电信—通信与信息系统]