Turbo码在短波通信系统中的应用研究  

Application Research of Turbo Code in Short WaveCommunication System

作　　者：田甜[1] 薛鸿民[1] 邓志龙 TIAN Tian;XUE Hongmin;DENG ZhiLong(Shaanxi Xueqian Normal University,Xi'an,Shaanxi Province,710100 China)

机构地区：[1]陕西学前师范学院,陕西西安710100

出　　处：《科技资讯》2020年第24期49-51,63,共4页Science & Technology Information

基　　金：陕西学前师范学院引进人才科研启动基金项目《Turbo码在短波通信系统中的应用研究》(项目编号:2018DS07)。

摘　　要：该文在介绍Turbo码原理基础上,提出一种新的Turbo码设计方案,并对分量编码器、二次置换多项式交织器、删余器、最大后验概率译码算法等关键技术做出具体分析。同时,利用Matlab软件对Turbo码在不同交织长度、不同迭代次数和不同编码速率下进行性能仿真,得出Turbo码应用于短波通信系统时参数设置,与经过实测验证具有较高可靠性的卷积码编码相比,在300bps信息传输速率下,获得3dB增益,有效增强了系统可靠性。This paper puts forward a new Turbo code design scheme on the basis of introducing the principle of Turbo code,and analyzes the key technolog ies such as component encoder,quadratic permutation polynomial interleaver,delete and maximum posterior probability decoding algorithm in detail.At the same time,Matlab software is used to conduct performance simulation of Turbo code in different mixed length and number of iteration under different code rate,and it is concluded that the parameter settings of the Turbo code used in shortwave communication s ystem can obtain a g ain of 3dB at t he information t ransmission r ate of 300bps by comparing with the convolutional code with higher reliability verif ied by actual measurement,which effectively enhances the system reliability.

关 键 词：TURBO码 编码 译码 短波通信 

分 类 号：TN929[电子电信—通信与信息系统]