典型复杂微动目标的建模和检测  

Modeling and Detection of Typical Complex Micro- motion Targets

作　　者：陈磊[1] 李兴广[1] 陈殿仁[1] 

机构地区：[1]长春理工大学电子信息工程学院,长春130022

出　　处：《电讯技术》2016年第11期1201-1207,共7页Telecommunication Engineering

基　　金：国防装备预研项目(40405050302)~~

摘　　要：针对战场典型复杂微动目标的检测问题,提出了一种基于能量聚焦的微动目标检测方法。首先对3种复杂微动目标雷达回波的微多普勒特性进行了建模和仿真,分析了回波多普勒的频域和时频域特性,提取了雷达回波多普勒时频分析数据的能量聚焦特性,并提出了一种基于能量聚焦的广义似然比微动目标检测器。数值仿真表明,在不同的信噪比和虚警概率条件下,该检测器均可实现对3种复杂微动目标的有效检测。In order to detect the typical complex micro-motion targets in battlefield,a micro-motion targets detection method based on energy focusing is proposed. First,the models of three complex micro-targets are established and simulated,their frequency-domain and time-frequency domain characteristics are analyzed,the frequency energy focusing characteristics of the echo time-frequency data are extracted. Then,a generalized likelihood ratio test （ GLRT） detector for micro-motion targets based on energy focusing efficiency is proposed. The numerical simulation shows that the GLRT has a good performance under different echo signal-to-noise ratio （SNR） and false alarm probability conditions.

关 键 词：微动目标 雷达回波 广义似然比检测 能量聚焦 

分 类 号：TN959.6[电子电信—信号与信息处理]