基于改进高斯法的卷积码盲识别方法

卷积码盲识别技术是指在无任何先验知识的情况下,仅通过接收或截获到的编码数据快速地盲识别出对方所采用的卷积码具体参数,是非合作通信领域的一项关键技术,在军事侦察方面具有广泛应用。针对传统高斯解方程法在对非系统卷积码进行盲识别时,生成矩阵存在多解的问题,提出了一种适用于1/n码率、基于改进高斯法的卷积码盲识别方法,仿真实验表明,该算法可对1/n非系统卷积码进行有效地盲识别。

Blind Recognition of Convolution Code based on Improved Gauss Algorithm

Blind recognition of convolution code is that under the conditions of unknown encoding information, and only in accordance with the received or intercepted data, the parameters of convolution code are identified rapidly. It is a key technology of non-cooperation communications and has a wide application in military reconnaissance. For traditional Gauss algorithm for blind recognition of non-systemic convolution code may produce multiple solutions to the generator matrix, a blind recognition method for 1/n rate convolution code based on improved Gauss algorithm is thus proposed, and the simulations show that the proposed method could effectively recognise 1/n rate non-systemic convolution code parameters.