Modeling simulation and experiment of micro-Doppler signature of precession |
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Authors: | Hongwei Gao Lianggui Xie Shuliang Wen |
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Institution: | 1. Beijing Institute of Radio Measurement, Beijing 100039, P. R. China 2. China Aerospace Science & Industry Corporation, Beijing 100048, P. R. China |
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Abstract: | 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 matrix, 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. |
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Keywords: | precession micro-Doppler micro-motion matrix occlusion effect |
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