摘要
针对Turbo码的盲识别问题,提出了一种对非归零Turbo码编码参数进行盲识别的方法.该方法通过分析Turbo码中子编码器的编码组成结构,建立了1/2码率卷积码的分析模型,进而在恢复Turbo码中交织序列的基础上,利用穷举比对的方法来确定交织关系,实现了对非归零Turbo码的盲识别.实验仿真表明,在仅得到Turbo码编码数据序列的情况下,实际数据的编码参数识别分析结果和所设前提完全一致,表明了该识别方法的正确性.
In order to solve the problem of the blind recognition of Turbo codes,some methods for blind recognition of the Turbo coding parameter with trellis termination are proposed for the first time.Based on the analysis of the sub-encoder structure of Turbo codes,some analytical models of convolutional codes at a rate of 1/2 are proposed,and by recoverying the interleaver sequence of Turbo codes,interleaver mapping is decided by exhaust comparison,and blind recognition of Turbo codes with trellis termination is realized.Simulation results illustrate that given the unknown Turbo encoded data sequence,the recognized coding parameters are correct by comparing prior conditions which validates the accuracy of the proposed methods.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2011年第2期167-172,共6页
Journal of Xidian University
关键词
信道编码
TURBO码
卷积码
盲识别
channel coding
Turbo codes
convolutional codes
blind recognition
