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《Spacecraft Engineering》 2013-06
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Research of On-board Real-time Imaging Processing Algorithm of Space-borne Synthetic Aperture Radar

BIAN Mingming;LI Shenglin;YUE Ronggang;China Academy of Space Technology;  
With the in creasing of Space-borne SAR resolution and swath,On-board real-time imaging processing is adopted to decrease the data-rate of transmission between satellite and earth station.In order to improve the real-time signal processing capability of on-board Space-borne SAR imaging,in this paper,the signal processing constraints proposed by the special conditions of satellite are analyzed,and the comparison of three classic space-borne SAR imaging processing algorithms namely RD、WK、CS is briefly presented.A demonstration of CS algorithm,the impact on CS imaging processing produced by the phase compensation factor(PCF)is studied,and a novel CS imaging algorithm named constant-in-region of PCF is put forward,which greatly improves the calculation efficiency of imaging processing algorithm.The experimental result of simulation validate the up-dated algorithm.
【CateGory Index】: TN957.52
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