基于多普勒频谱特征的空中目标识别  

Identification of Air Targets Based on Dopple Spectrum Features

作　　者：廖东平[1] 朱孝开[1] 魏玺章[1] 

机构地区：[1]国防科技大学电子科学与工程学院ATR国家重点实验室,长沙410073

出　　处：《现代雷达》2005年第6期8-11,共4页Modern Radar

基　　金：国防预研基金资助课题

摘　　要：分析了直升机和固定翼飞机两类空中目标的多普勒频谱测量能力,并在测量能力得到满足的前提下,对其目标的多普勒频谱特征进行了分析,找出了它们之间的不同之处,提出了对其目标进行分类识别的方法,通过对18种直升机和固定翼飞机的仿真数据以及现场实测数据的检验,证明该方法是有效的,并且适用于悬停直升机的探测与识别。In this paper the Doppler spectrum measurement ability of air targets including helicopter and fixed-wing aircraft is analyzed firstly. Then the Doppler spectrum features of these two kinds of targets are analyzed provided the measurement ability is satisfied. Differences petween the spectrums are found and a method for identifying these two kinds of targets is suggested. This method has been proved to be efficient by testing the simulated data of the eighteen kinds of helicopters and fixed-wing aircraft and on-the-spot measured data. This method can also be applied to detection and identification of hovering helicopter.

关 键 词：目标识别 多普勒频谱测量能力 雷达波束驻留时间 雷达脉冲重复频率(PRF) 旋翼特征 

分 类 号：TN953[电子电信—信号与信息处理]