一种CPM信号检测与定时同步算法  

CPM Signal Detection and Timing Synchronization Algorithm

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,郑州450002

出　　处：《计算机工程》2011年第21期77-79,共3页Computer Engineering

基　　金：河南省基础与前沿研究基金资助项目(082300413205)

摘　　要：针对传统连续相位调制(CPM)接收机检测复杂度高和定时同步困难的问题,提出一种CPM信号联合检测与定时同步算法。基于低维Walsh信号空间分解CPM信号,在低通滤波器中采用子区间采样器代替大量匹配滤波器,利用面向判决的方式进行定时同步。仿真实验表明,该算法的复杂度较低,适用于多数CPM调制方案。Aiming at the problem of high detection complexity and timing synchronization difficulty in Continuous Phase Modulation（CPM）,this paper proposes a reduced-complexity detection and timing synchronization algorithm.It is based on a decomposition in the Walsh signal space.The receiver is just the ordinary linear filter followed by a subinterval sampler instead of the matched filters,and the synchronization is direct decision.Simulation results show that this algorithm exhibits excellent performance and may be employed with most CPM scheme.

关 键 词：连续相位调制 序列检测 定时同步 Walsh信号空间 修正克拉美罗界 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]