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《ACTA GEODAETICA ET CARTOGRAPHIC SINICA》 1999-02
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Effects of terrain slopes on residues in interferometric SAR

Xiang Maosheng, Li Shukai (Institute of Remote Sensing Applications, Beijing,100101,China)  
Phase unwrapping is a main problem during interferometric SAR processing for DEM. Residues make phase unwrapping difficult sophisticated. After residues are identified correctly, phases can be unwrapped in a consistent manner if suitable branch cuts are made. The process of selecting branch cuts is identifying the correct segments of phase discontinuity caused by noise or layover. This paper presents the probability of segments of phase discontinuity caused only by noise in SAR interferograms. Results have proved that the probability can be influenced both by terrain slopes and decorrelation. Moreover, the probability of residues grows up with the increase of terrain slopes, and is reduced with the increase of the correlation coefficient that is well known. In addition, the paper also presents the probability of segments of phase discontinuity when correlation coefficient equals zero and 1.
【CateGory Index】: P228
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【Co-references】
Chinese Journal Full-text Database 10 Hits
1 SONG Yang~(1,2),FAN Xiang-tao~2,LU Xian-cai~1(1.Department of Earth Sciences,Nanjing University,Nanjing 210093,China;2.Institute of Remote Sensing Applications,CAS,Beijing 100101, China);Landslide Calamity Research Using Multi-Temporal Remote Sensing Images and DEM Data——A Case Study of Xintan Landslide[J];Journal of Anhui Normal University(Natural Science);2006-03
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7 Xiang Maosheng, Li Shukai(Institute of Remote Sensing Applications, Chinese Academy of Sciences,Beijing, 100101);INSAR PHASE UNWRAPPING USING POISSON’S EQUATION WITH DIRICHLET BOUNDARY CONDITIONS[J];ACTA GEODAETICA ET CARTOGRAPHIC SINICA;1998-03
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