Analysis of factors influencing the accuracy of CRDInSAR

Wenxue Fu; Huadong Guo; Qingjiu Tian; Xiaofang Guo

doi:10.1117/12.873213

3 November 2010 Analysis of factors influencing the accuracy of CRDInSAR

Wenxue Fu, Huadong Guo, Qingjiu Tian, Xiaofang Guo

Proceedings Volume 7841, Sixth International Symposium on Digital Earth: Data Processing and Applications; 78410I (2010) https://doi.org/10.1117/12.873213
Event: The Sixth International Symposium on Digital Earth, 2009, Beijing, China

Abstract

In recent years, the method of Corner Reflectors Differential Interferometric Synthetic Aperture Radar (CRDInSAR) was proposed for overcoming the limitations of decorrelations of the conventional differential interferometric synthetic aperture radar (DInSAR) technique. In general, the corner reflector has very high RCS (Radar Cross Section) for a small size, and the maximum RCS occurs when it points directly along the boresight of the SAR antenna. The beam width of a trihedral corner reflector is rather broad (having a 3dB beam width of 40° in both elevation and azimuth), so it is fairly tolerant to installation errors. It can be made available as artificial PS (Permanent Scatterers) points by installing them on a study area due to the stable amplitude and phase performance. However, some errors of CRDInSAR system will still affect the results of measurement. In this paper, the factors influence the accuracy of CRDInSAR are discussed, which include the errors of baseline and its angle, look angle and height of corner reflector respectively.

Citation Download Citation

Wenxue Fu, Huadong Guo, Qingjiu Tian, and Xiaofang Guo "Analysis of factors influencing the accuracy of CRDInSAR", Proc. SPIE 7841, Sixth International Symposium on Digital Earth: Data Processing and Applications, 78410I (3 November 2010); https://doi.org/10.1117/12.873213

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