一种多分量LFM信号检测与参数估计方法  

A Method for Detection and Parameter Estimation of Multi-component LFM Signals

作　　者：冯维婷[1] 

机构地区：[1]西安邮电学院电子与信息工程系,陕西西安710121

出　　处：《电子科技》2009年第7期52-54,58,共4页Electronic Science and Technology

摘　　要：针对多分量LFM信号的检测与参数估计,提出了一种新的检测方法。该方法借鉴Clean思想,实现了多分量信号分离与检测,基于解线性调频法的每个分量信号估计的起始频率和调频斜率。另外,结合插值FFT方法,提高了起始频率的估计精度。该方法易于工程实现,计算机仿真验证了此方法的有效性。This paper presents a new method for multi-LFM signals＇ detection and parameter estimation. The detection is based on the Clean method and realizes separation and detection of multi-signals. The parameter estimation of initial frequency and the chirp rate for single LFM signal is based on the de-chirp method. Moreover, the interpolation of the FFT method is used to get high precision of the initial frequency. This method is easy to implement, and the computer simulation further tests the validity of this method.

关 键 词：LFM信号 CLEAN 解线性调频 

分 类 号：TN911.7[电子电信—通信与信息系统]