卫星链路CSSDS标准删除卷积码的识别方法  

The recognition method for CCSDS punctured convolution code

作　　者：胡以华[1,2] 许建华[3] 王磊[1,2] 向长波 

机构地区：[1]电子工程学院脉冲功率激光技术国家重点实验室,安徽合肥230037 [2]电子制约技术安徽省重点实验室,安徽合肥230037 [3]中国电子科技集团公司第41研究所,山东青岛266555

出　　处：《航天电子对抗》2016年第4期1-4,共4页Aerospace Electronic Warfare

摘　　要：介绍了删除卷积码的定义,根据删除卷积码与源卷积码之间的关系,构建了删除卷积码识别的数学模型。考虑误码情况,针对Walsh-Hadamard变换在删除卷积码校验矩阵的识别中存在运算量和数据量过大的问题,对校验矩阵方程组进行了变形,提出了改进Walsh-Hadamard算法,能够有效地识别出校验矩阵。在此基础上识别源码的生成矩阵和删除模式,并通过真实卫星链路构建实验平台进行删除卷积码识别实验。The definition of punctured convolution code is introduced. The math model of punctured convolution code recognition is established according to relationship between punctured convolution code and source convolution code. The improvement Walsh-Hadamard method is presented to overcome the increasing operation and data quantity problem of Walsh Hadamard transform in punctured convolution code recognition. The generator matrix and check matrix of punctured convolution code can be recognized effectively by this method. The experiment platform for punctured convolution code recognition is built bv real satellite link.

关 键 词：删除卷积码 校验矩阵 生成矩阵 识别 实验平台 

分 类 号：TN927.2[电子电信—通信与信息系统]