计算机应用研究2011，Vol.28Issue(4)：1457-1459,1464,4.DOI:10.3969/j.issn.1001-3695.2011.04.071
基于改进Walsh-Hadamard变换的删除卷积码盲解码算法
Blind decoding algorithm of punctured convolutional codes based on improved WHT
摘要
Abstract
In order to solve the problem of blind decoding punctured convolutional codes at high bit-error rates, this paper proposed a blind decoding algorithm. Through applying the advanced Walsh-Hadamard transform, recognized the high dimensionality parity-check matrix of punctured convolutional codes. Moreover, solved the generator matrix and puncture map of the source convolutional codes based on the constraint relationship between the parity-check matrix and the generator matrix. Then proposed a method of codeword synchronization. According to the recognition results, established a model of blind decoding of punctured convolutional codes. The simulation results show, the bit correct rate after decoding of this algorithm can be up to 93％ under the condition of BER lower than 0.01.关键词
盲解码/删除卷积码/沃尔什-哈达马变换Key words
blind decoding/ punctured convolutional codes/ WHT分类
信息技术与安全科学引用本文复制引用
戚林,郝士琦,王磊..基于改进Walsh-Hadamard变换的删除卷积码盲解码算法[J].计算机应用研究,2011,28(4):1457-1459,1464,4.基金项目
国家自然科学基金资助项目(60902017) （60902017）
