高分辨雷达目标检测方法研究  

Study on Target Detection Method of High Resolution Radar

作　　者：刘冰[1] 罗丁利[1] 

机构地区：[1]西安电子工程研究所,西安710100

出　　处：《火控雷达技术》2011年第4期56-60,共5页Fire Control Radar Technology

摘　　要：高分辨雷达较低分辨雷达能够提供较多的目标结构信息,但是由于其目标回波和杂波的特殊性,信号检测也存在着一些新的技术问题。本文分析了高距离分辨雷达目标和杂波的回波特性,给出了回波模型,在此基础上分析了非瑞利杂波背景下高距离分辨雷达的检测方法,并进行了仿真验证,结果表明采用TM-CFAR与M/N检测相结合的方法可以很好的利用高分辨雷达的特性进行目标检测,具有良好的检测性能。Comparing with a low range resolution （LRR） radar, a high range resolution （HRR） radar can provide more structure information of targets. However, due to peculiarity of target echo and clutter, some new technical problems exist in signal detection. The characteristics of HRR radar echo and clutter are analyzed and echo model is given. On basis of this, detection method of HRR radar at background of unRayleigh clutter is analyzed. The simulated results show that using TM-CFAR and M/N methods can carry out target detection by using characteristics of HRR radar, and it has perfect detection performance.

关 键 词：高距离分辨雷达 TM—CFAR M/N 

分 类 号：TN957.51[电子电信—信号与信息处理]