一种删除卷积码识别方法研究  

A Recognition Method of Punctured Convolutional Code

作　　者：刘建成[1] 杨晓静[1] 张玉[1] 

机构地区：[1]电子工程学院,合肥230037

出　　处：《电子信息对抗技术》2013年第6期7-13,22,共8页Electronic Information Warfare Technology

摘　　要：伴随自适应编码调制(AMC)技术的提出与应用,删除卷积码识别已成为自适应通信领域一个亟需解决的问题。针对以(2,1,m)卷积码为源码的删除卷积码识别问题,提出了一种基于构建分析矩阵和遍历删除模式的识别方法。该方法首先由构建的分析矩阵识别出删除卷积码码率和校验多项式矩阵,进而通过遍历确定删除模式,推导得出(2,1,m)源卷积码的生成多项式矩阵。最后,通过MATLAB实例仿真验证了该方法的有效性,并分析了其容错性能。In view of the fast development of adaptive modulation and coding, it has become an urgent problem to recognize the punctured convolutional codes in adaptive communication. A recognition method, based on constructing matrix and traversing all punctured types, is proposed to recognize the punctured convolutional codes based on the （2, 1, m） convolutional codes. A matrix is firstly con- structed to recognize the code rate and the parity-check polynomial matrix in this method, and then the punctured type is acquired by ransacking among all possible types, and the generator polynomial matrix of the source code, one （2, 1, m） convolutional code, is deduced. At last, the validity of this method is verified with the simulation of MATLAB, and the performance of resisting errors is ana- lyzed.

关 键 词：删除卷积码 识别 分析矩阵 删除模式 生成多项式矩阵 

分 类 号：TN971.1[电子电信—信号与信息处理]