Turbo码的编译码及其性能仿真  

Encoding and Decoding of Turbo Code and Its Performance Simulation

作　　者：马媛媛 彭娜 MA Yuan-yuan;Peng Na(Information Engineering School,Chang’an University,Xi’an Shaanxi 710064)

机构地区：[1]长安大学信息工程学院,陕西西安710064

出　　处：《数字技术与应用》2018年第12期110-112,共3页Digital Technology & Application

摘　　要：本论文旨在研究Turbo码的几种迭代译码算法,包括Log-MAP译码算法和Max-Log-MAP译码算法。在介绍Turbo码基础并推导Turbo码的各种译码算法(Max-Log-MAP算法、Log-MAP算法和SOVA算法)的原理后,通过性能仿真,我们分析了迭代次数、交织长度等参数对Turbo码的纠错能力的影响,并横向比较了三种算法的性能,从而得出结论。This article is to study several iterative decoding algorithms of Turbo code,including LOG-MAP decoding algorithm and MAXLOG-MAP decoding algorithm.After introducing the fundamentals of Turbo code and deriving various decoding algorithms(Max log map algorithm,log map and SOVA algorithm)of turbo code,simulations of these decoding algorithms are performed.Based on the simulation results,we analyze the impact of iteration number and interleaver length on the error correcting capabilities of Turbo codes.Horizontal comparisons of the performances of these three kinds of decoding algorithms are also made,and get the conclusions.

关 键 词：级联码 TURBO码 交织器 LOG-MAP算法 MAX-LOG-MAP算法 

分 类 号：TN929[电子电信—通信与信息系统]