摘要
针对信息截获领域中的低码率二进制分组码的盲识别问题,提出了根据码重分布距离估计码长的方法,进而通过改进传统的矩阵化简方法获得生成矩阵,实现了对低码率二进制线性分组码的盲识别。理论推算和数据仿真都表明,本算法在较高误码率的情况下,也可以得到很好的识别效果。
For the blind recognition of low code-rate binary linear block codes in information interception, the method of estimating code length is proposed based on the distance of weight distribution; furthermore, through improving the traditional simplification of matrices, a generator matrix is achieved and the blind recognition of low code-rate binary linear block codes is realized. Even at high BER, both theoretical derivation and data simulation show the good performance of this algorithm.
出处
《无线电工程》
2009年第1期19-21,24,共4页
Radio Engineering
关键词
码重分布距离
矩阵化简
生成矩阵
distance of weight distribution
simplification of matrix
generator matrix
