摘要
针对信息截获领域中Turbo码识别问题,提出了一种基于矩阵分析的Turbo码长识别算法。简述了Turbo码编码和归零的基本原理,深入分析了Turbo码第1路、第2路、第3路和整体的生成矩阵,得出其本质上是一种线性分组码。将线性分组码的码长识别方法引入到Turbo码识别当中,并对算法进行了改进。仿真实验表明,此方法在较高的误码率基础上有着良好的识别效果。
Aiming at the recognition of turbo codes in information interception,an algorithm for recognition of turbo code length based on matrix analysis is prop osed.The basic principle of turbo codes on trellis termination is presented fir stly,and then with an in-deep study on the first,second,third way＇s and the whole generator matrix,turbo codes on trellis termination are definite to be li near block codes.The recognition method of linear block codes is introduced to turbo codes,and the algorithm is improved.Simulation experiment shows the good performance of this algorithm at high BER.
出处
《无线电工程》
2012年第4期23-26,共4页
Radio Engineering
关键词
TURBO码
归零
生成矩阵
码长识别
Turbo code
trellis termination
generator matrix
code length recognition
