基于微多普勒分析的弹道导弹目标进动特性研究  

Research on precession of ballistic missile warhead based on micro-Doppler analysis

作　　者：高红卫[1] 谢良贵[2] 文树梁[1] 匡勇[1] 

机构地区：[1]中国航天科工集团第二研究院二十三所,北京100854 [2]中国航天科工集团第二研究院,北京100854

出　　处：《系统工程与电子技术》2008年第1期50-52,共3页Systems Engineering and Electronics

摘　　要：进动是弹道导弹目标的一种微运动,介绍了微多普勒的相关概念,然后建立了进动的数学模型,并推导了进动的微多普勒理论公式,最后进行了仿真实验,并采用时频分析方法提取出微多普勒特征。理论计算与仿真实验的结果吻合良好,表明了该进动数学模型和理论公式推导的正确性。同时,进动的微多普勒特征可用于识别真假目标。Precession is a kind of micro-motion of ballistic missile warhead. Based on introducing the concepts on micro-Doppler, and the mathematical model of the warhead precession is built and the theoretical formula of the micro-Doppler is derived. Finally, the simulation is performed, and the micro-Doppler signature induced by the warhead＇s precession is extracted by using time-frequency analysis method. The computing result is in accordance with the simulating one, which suggests that the model of precession and the derivation of formula are valid. Besides, the micro-Doppler signature of precession can be applied to the discrimination of the warhead and decoy.

关 键 词：弹道导弹 进动 微多普勒 目标识别 

分 类 号：TN959.1[电子电信—信号与信息处理]