Sparse Doppler-only snapshot imaging for space debris
作者： Ling Hong , Fengzhou Dai , Hongwei Liu
DOI: 10.1016/J.SIGPRO.2012.09.015
关键词: Doppler imaging 、 Doppler effect 、 Matching pursuit 、 Space debris 、 Computer vision 、 Signal reconstruction 、 Pulse repetition frequency 、 Computer science 、 Artificial intelligence 、 Radar
摘要: In this paper, we develop a sparse Doppler-only snapshot imaging (SDOSI) method for spinning space debris with size of 1-10cm which can provide high-resolution map the spatial distribution scatterers on target. The SDOSI deals Doppler by solving signal reconstruction problem. basis dictionary is constructed according to prior moving information and target return model, implemented an effective greedy named regularized orthogonal matching pursuit (ROMP). Furthermore, proposed able image when radar pulse repetition frequency less than twice bandwidth shadowing effect present. Finally, performance new evaluated both theoretical analysis simulation results.
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