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.
出处
《计算机应用研究》
CSCD
北大核心
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)
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
continuous phase modulation（CPM）
maximum-likelihood sequence detection
Walsh signal space
minimum projection distance
