电子学报2012，Vol.40Issue(3)：417-421,5.DOI:10.3969/j.issn.0372-2112.2012.03.001
一种基于相干性本质的InSAR方位向预滤波方法
An Improved Method for InSAR Azimuth Prefiltering Based on Coherence Principle
摘要
Abstract
Aiming at dealing with the problem of azimuth prefiltering during the interferometric processing procedures, this paper proposed an improved method for InSAR azimuth prefiltering. Based on the theoretic analysis of the InSAR imaging geometry and the principles of coherence, this paper proposes that only the radar echoes coming from the space sampling positions with the same azimuth angles are coherent,I.e. .available for interferometric process.Then an improved method for InSAR azimuth prefiltering is proposed according to the same azimuth angle extension. Finally,The computer simulation and practical examples analysis are shown to prove that the proposed algorithm can improve the coherence between complex SAR images while preserving the coherent information effectively.关键词
合成孔径雷达干涉测量/方位向预滤波/相干性/方位角Key words
SAR interferometry( InSAR)/azimuth prefiltering/coherence/azimuth angle分类
信息技术与安全科学引用本文复制引用
郭交,李真芳,刘艳阳,保铮..一种基于相干性本质的InSAR方位向预滤波方法[J].电子学报,2012,40(3):417-421,5.基金项目
国家自然科学基金(No.60802074,No.41001282) （No.60802074,No.41001282）
中央高校基本科研业务费专项资金(No.JY10000902011) （No.JY10000902011）
