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《ACTA ELECTRONICA SINICA》 2000-03
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Refined Chirp Scaling Algorithm for High Resolution Spaceborne SAR Imaging

HUANG Yan,LI Chun sheng,CHEN Jie,ZHOU Yin qing(Dept.of Electronic Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100083,China)  
In this paper a refined chirp scaling algorithm for spaceborne synthetic aperture radar (SAR) imaging is presented.At first,three range models of spaceborne SAR are analyzed.Based on the squint range model which has the least error among the three models,a refined chirp scaling algorithm is derived.And it is suitable for precise imaging of high resolution spaceborne SAR with large range cell migration.Based on the refined chirp scaling algorithm,the effects of Doppler parameters on the quality of SAR image are analyzed as well.Finally,this algorithm is tested by computer simulation.
【Fund】: 国家 8 63计划支持课题
【CateGory Index】: TN957
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