Modeling simulation and experiment of micro-Doppler signature of precession  

作　　者：Hongwei Gao Lianggui Xie Shuliang Wen 

机构地区：[1]Beijing Institute of Radio Measurement, Beijing 100039, R R. China [2]China Aerospace Science & Industry Corporation, Beijing 100048, P. R. China

出　　处：《Journal of Systems Engineering and Electronics》2010年第4期544-549,共6页系统工程与电子技术（英文版）

摘　　要：Spatial precession is a special micro-motion of the spinning-directional target, and the micro-Doppler signature of the cone-shaped target with precession is studied. The micro-motion model of precession is built first, and then the micro-Doppler model is developed based on the proposed concept of micro-motion ma- trix, by which the theoretical formula of micro-Doppler signature of precession is derived. In order to further approach to the actual case, the occlusion effect is firstly considered in micro-Doppler, and the simulated result with occlusion effect is well in accordance with the measured result in microwave anechoic chamber, which suggests that the micro-motion model and micro-Doppler model of precession are both valid.Spatial precession is a special micro-motion of the spinning-directional target, and the micro-Doppler signature of the cone-shaped target with precession is studied. The micro-motion model of precession is built first, and then the micro-Doppler model is developed based on the proposed concept of micro-motion ma- trix, by which the theoretical formula of micro-Doppler signature of precession is derived. In order to further approach to the actual case, the occlusion effect is firstly considered in micro-Doppler, and the simulated result with occlusion effect is well in accordance with the measured result in microwave anechoic chamber, which suggests that the micro-motion model and micro-Doppler model of precession are both valid.

关 键 词：PRECESSION MICRO-DOPPLER micro-motion matrix occlusion effect. 

分 类 号：TN959.4[电子电信—信号与信息处理] P126.5[电子电信—信息与通信工程]