基于相位匹配的噪声调幅干扰下LFM信号检测  

A Detection Method for LFM Signal Embedded in NMA Interference Using Signal Phase Matching Principle

作　　者：杜东平[1] 唐斌[1] 

机构地区：[1]电子科技大学电子工程学院,成都610054

出　　处：《电子与信息学报》2008年第5期1072-1074,共3页Journal of Electronics & Information Technology

基　　金：国家部级基金资助课题

摘　　要：该文提出一种基于相位匹配原理的噪声调幅干扰下LFM信号检测方法。推导了噪声调幅干扰信号载频估计方法,利用干扰信号载频信息,实现信号的相位匹配,并基于最小二乘相位匹配方法实现LFM信号检测。仿真结果证明了文中原理和方法的正确性。On the basic of Signal Phase Matching Principle （SPMP）, a detection method for Linear FM （LFM） signal embedded in Noise AM （NAM） interference is presented. The formula for estimation the carrier frequency of noise AM interference is derived, and the signal phase is matched using the carrier frequency of interference, then LFM signal is detected based on least squares of signal phase matching. The simulation shows that the proposed method is efficient.

关 键 词：信号检测 噪声调幅 线性调频 相位匹配 

分 类 号：TN974[电子电信—信号与信息处理]