复合运动目标微多普勒特征的分析和提取

doi:10.3969/j.issn.1001-2400.2011.03.010

Abstract

Abstract:

Micro-Doppler signature produced by micro-motion contains movement and structure information which is useful for radar classification and recognition. Because of the complexity and difference of micro-motion, based on non-rotor targets and rotary-wing targets, the complex motion scattering point with translation, acceleration and vibration is modeled, so is complex motion scattering point with translation, vibration, acceleration and rotation. Then their micro-Doppler modulation and difference are analyzed. By simulation, the micro-Doppler modulation induced by the two models is extracted from the radar echo with the Smoothed pseudo Winger-Ville time-frequency analysis method, which agrees well with the computed results and proves that the models and the mathematical derivation of their micro-Doppler theoretical analysis are valid.

Key words: micro-Doppler, complex motion, vibration, rotation, time-frequency analysis

CHEN Guangfeng；ZHANG Linrang；WANG Chun；LIU Gaogao. Micro-Doppler feature analysis and extraction of the complex motion target[J].J4, 2011, 38(3): 55-62.

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Micro-Doppler feature analysis and extraction of the complex motion target

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