雷达微多普勒特征提取和目标识别研究现状  

The Research Status of Radar Target Feature Extraction and Recognition for Micro-Motion

作　　者：施西野[1] 郭汝江[1] 李明[1] 

机构地区：[1]南京电子技术研究所,江苏省南京市210039

出　　处：《信息化研究》2009年第7期8-11,20,共5页INFORMATIZATION RESEARCH

摘　　要：自从雷达目标微多普勒现象被发现以来,雷达目标的微动特性在雷达目标探测与识别中受到越来越多的关注,对目标微动特性的测量和分析正在成为当前目标探测与识别领域的新兴研究方向。文中主要介绍了目标微动和微多普勒效应的概念,比较分析了目前目标微动的测量与分析处理技术,并且着重从几个方面分别介绍了目前微动特征提取的应用现状,接着就目前较常用的几种微多普勒目标识别分类器的识别率进行了比较和分析,最后对目标微动特性研究的发展趋势和技术难点进行了预测和总结。Ever since micro-Doppler phenomenon is observed in radar target detection, micro-motion, as one of significant target characteristics with promising applications in radar target feature extraction and recog- nition, attracts increasing attention and research interests. Advance in target micro-motion measurement and feature analysis became a new direction in the field of target measurement and recognition. In this paper, the concepts of target micro-motion dynamics and micro-Doppler effect are introduced first. Then several methods of feature analysis of a target with micro-motion are compared. More attentions are paid to introducing the application based on micro-motion dynamic. Then several recognition rates of the classifier used for micro-motion target are compared. Some directions of further work in target characteristic with micro-motion and their technical difficulties are suggested at last.

关 键 词：微动 微多普勒 特征提取 目标识别 时频分析 

分 类 号：TN951[电子电信—信号与信息处理]