基于Walsh信号空间分解的CPM序列检测算法  

Sequence detection algorithm for CPM based on Walsh signal space decomposition

作　　者：钟凯[1] 葛临东[1] 巩克现[1] 

机构地区：[1]解放军信息工程大学信息工程学院信息工程系,郑州450002

出　　处：《计算机应用研究》2011年第5期1808-1809,1812,共3页Application Research of Computers

基　　金：河南省基础与前沿资助项目(082300413205)

摘　　要：给出了基于Walsh信号空间分解的序列检测算法,将接收机前端大量的匹配滤波器替换为两个低通滤波器加子区间采样器,有效地降低了CPM解调器前端复杂度,并通过对最小投影距离损失的分析,得出了一个关于接收机使用Walsh信号空间维数所遵循的最低限准则,并通过仿真验证了这个准则是有效的。This paper proposed a sequence estimation algorithm which was based on the decomposition of the CPM signal in the Walsh signal space.Its front end was just the ordinary linear receiver followed by a subinterval sampler,eliminating the need for the matched filters.Defined a rule concerning the number of Walsh functions that must be used by analyzing minimum projection distance loss,which was proved availably by the simulation results.

关 键 词：连续相位调制 最大似然序列检测 沃尔什信号空间 最小投影距离 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]