摘要
提出了一种应用准静态技术,结合快速多极子算法计算任意形状的运动目标多普勒信号的方法。对目标的几种典型的微动多普勒信号进行了仿真,并应用高分辨时频分析算法对仿真得到的微多普勒信号进行了分析,提取出了微多普勒瞬时频率,通过与相应微动规律的点目标微多普勒瞬时频率进行对比,表明二者具有相同的变化规律,从而证明文章提出的方法是有效的。
A method based on quasi-static and multilevel fast multipole algorithm（MLFMA） is introduced to compute the micro-Doppler echo by moving target body with arbitrary shape,the joint time frequency analysis algorithm is used to calculate some typical motion＇s micro-Doppler echo,extracting the instantaneous frequency and compare with the point target＇s instantaneous frequency in accord with the same micro-motion,the results indicate that they share the same law and the method is volid.
出处
《微波学报》
CSCD
北大核心
2010年第3期73-76,87,共5页
Journal of Microwaves
基金
武器装备预研基金
关键词
准静态
快速多极子算法
微动
时频分析
Qusi-static
MLFMA
Micro-motion
Joint time frequency analysis
