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删除卷积码是卫星通信系统中的一种常用信道编码方法。在卫星信号截获分析领域有时需要知道删除卷积码的生成矩阵和信息恢复式。本文用简单的物理概念给出了一种删除卷积码多项式生成矩阵的简单求法,并用以逐次降低多项式生成矩阵次数为原则的初等变换方法给出了多项式校验矩阵和最简多项式信息恢复式的求法。本文给出的方法适应各种码率的删除卷积码,在卫星信号截获分析领域具有实用性。
Removal of convolutional codes is a common channel coding method in satellite communication systems. In the field of satellite signal interception analysis sometimes need to know to delete the convolutional code generation matrix and information recovery. In this paper, a simple method to delete convolutional polynomial generator matrices is given with a simple physical concept. The polynomial parity check matrix and the minimal polynomial information recovery formula The solution. The method presented in this paper is adaptive to the de-convolutional codes with various bit rates and is practicable in the field of satellite signal interception analysis.