信号相位匹配法检测正弦信号的高阶统计量方法  

Signal Detection Using Signal Phase Matching Principle and Higher Order Statistics

作　　者：梁红[1] 

机构地区：[1]西北工业大学,陕西西安710072

出　　处：《火力与指挥控制》2008年第12期53-55,共3页Fire Control & Command Control

基　　金："973"国家安全重大基金(5131603Z71);"十五"国防重点预研基金资助项目

摘　　要：为了能对提高高斯色噪声中正弦信号的检测能力,提出了二阶自相关和四阶累积量预处理的信号相位匹配检测法。仿真结果表明,高斯色噪声中四阶累积量预处理的信号相位匹配检测法的检测性能接近于高斯白噪声下匹配滤波器,优于二阶自相关的信号相位匹配检测法的检测性能,更优于的信号相位匹配的最小二乘检测器。Use Reassign-Smooth-Pseudo-Wigner-Ville Distribution （RSPWVD） as time-frequency analysis tool disposal multi-component signal with arbitrary form frequency modulation law. Smooth can retrain cross-term of signals, but the signal-terms be smoothed at the same time. Reassign can timefrequency concentration. Use the algorithm presented in this paper analysis image of RSPWVD. Simulation experiments indicate that the algorithm can separate the instantaneous frequency of each signal component on the condition that absence of prior information about signal.

关 键 词：信号相位匹配原理 二阶自相关 四阶累积量 高斯色噪声 

分 类 号：TN911.7[电子电信—通信与信息系统]