数字视频广播中删除卷积码的优化译码算法  

Optimized Decoding Algorithm for Punctured Convolutional Codes in Digital Video Broadcasting

作　　者：邢庆君[1] 刘玉君[1] 

机构地区：[1]中国人民解放军信息工程大学信息工程学院,河南郑州450002

出　　处：《电视技术》2004年第4期16-18,共3页Video Engineering

摘　　要：介绍DVB中删除卷积码的编译码方法,同时提出了一种优化译码算法。该算法增强了纠错能力,提高了译码精度,加强了通信系统的可靠性和有效性,尤其对DVB中可变码率的删除卷积码的译码具有很好的实用性。We introduce an encoding and decoding algorithm for punctured convolutinal codes in Digital Video Broadcasting and put forward a kind of optimized decoding algorithm in this paper. This algorithm provides strong error correction ability and good practicability especially to the Rate Compatible Punctured Convolutional(RCPC) codes in Digital Video Broadcasting, and it can improve the precision of decoding and increase the reliability and validity of communication system.

关 键 词：数字视频广播 删除卷积码 译码算法 纠错能力 信源编码 

分 类 号：TN919.81[电子电信—通信与信息系统]