一种对线性分组码编码参数的盲识别方法
A method of blind recognition to coding parameters of linear block codes
陈金杰 1杨俊安2
作者信息
- 1. 电子工程学院,安徽合肥230037;安徽省电子制约技术重点实验室,安徽合肥230037;91245部队,辽宁葫芦岛125000
- 2. 电子工程学院,安徽合肥230037;安徽省电子制约技术重点实验室,安徽合肥230037
- 折叠
摘要
由于线性分组码具有较简单的编、译码结构和相对优越的纠错性能,目前已在数字通信系统中得到了广泛应用.为了克服线性分组码各码字之间缺乏相似于卷积码的相关性,本文根据线性分组码自身的编码特点以及完整码字序列具有较好的非随机性,提出了基于比特频率检测线性分组码盲识别方法.该识别方法在对线性分组码的编码特点分析的基础上,将密码学中比特频率检测方法应用到信道编码识别中,在不同的先验知识条件下,给出了不同的识别过程并进行仿真实验,实验结果表明该识别方法的有效性的同时且具有较好的容错性能.
Abstract
Due to the simple structure of the encoding or decoding and brilliant performance of the error-correcting,the linear block codes is being widely used in the area of modern digital communications.Like Convolutional Coding,the linear block codes lack correlation.In order to overcome this demerit,a method of blind recognition is proposed in this paper.It is based on characteristics of linear block coding and nonrandom of each intact linear block codes.On the analysis characteristics of linear block coding,this method introduces the bit frequency detection into channel coding recognition.In different priori conditions,corresponding recognition process has been provided and simulated.The experimental results show that this method is effective and has a better performance at high BER simultaneously.
关键词
线性分组码/盲识别/比特频率检测/生成矩阵Key words
linear block codes/blind recognition/bit frequency detection/generator matrix引用本文复制引用
出版年
2013
NETL
NSTL
维普
万方数据