无源循环平稳信号检测方法  

Passive Cyclostationary Signal Detection

作　　者：姜文利[1] 黄知涛[1] 周一宇[1] 

机构地区：[1]国防科技大学电子科学与工程学院,长沙410073

出　　处：《信号处理》2005年第6期597-599,569,共4页Journal of Signal Processing

基　　金：该研究得到国防科技重点实验室基金资助

摘　　要：研究了无源接收条件下循环平筝信号的检测方法。在循环相关匹配滤波理论的基础上,分别给出了无源单 站和无源双站准循环相关匹配滤波器的设计方法,并研究了基于准循环相关匹配滤波的无源单站和无源双站信号检测方 法,得到了SPS无源单站信号循环检测子和SPB无源双站信号循环检测子。仿真分析针对BPSK信号给出了在白噪声和 时变噪声两种噪声背景条件下SPS、SPB和radiometry等检测子的ROC检测曲线,仿真结果充分说明了SPS和SPB检测 子的有效性。The problem of passive cyclostationary signal detection is discussed in the paper. Based on the theory of cyclic correlation matched filtering （CCMF）, the quasi-CCMF design methods for the passive signal interception are present. And the passive single-static signal detector SPS and passive bistatic signal detector SPB are derived according to the output of the quasi-CCMF. Taking BPSK signals as the example, the ROC curves of SPS and SPB detectors are simulated with the interference of two different background noises： white noise and time-variant noise. Simulation results indicate the efficiency of the given detectors.

关 键 词：循环相关匹配滤波 信号截获 循环检测子 能量辐射计 

分 类 号：TN911.23[电子电信—通信与信息系统] TN911.7[电子电信—信息与通信工程]