数字电视传输系统中LDPC码编译码器的研究与设计  

Design and Research of LDPC Encoding and Decoding for Digital Television Broadcasting System

作　　者：郭志坚[1] 

机构地区：[1]广东东莞广播电视台,广东523000

出　　处：《中国新通信》2010年第3期61-63,共3页China New Telecommunications

摘　　要：低密度奇偶校验码纠错能力强,能够在逼近香农极限的信噪比条件下获得很高的误码率特性,非常适用于无线通信。本文分析了在DMB-TH标准中LDPC码的构造、编码及解码算法原理,结合MATLAB仿真对其算法有效性进行了分析比较。LDPC code is the most superb sort of error control codes,especially When it has long code length and adopts soft decoding method.In this paper,we have done a research on algorithms of constructing LDPC,encoding and decoding.With the help of MATLAB simulation tool,some results are collected to study the feasibility of this algorithm.

关 键 词：数字电视传输系统 低密度奇偶校验码 DMB-TH 编译码器 

分 类 号：TN949.197[电子电信—信号与信息处理]