Monitoring the deformation of a landslide with differential SAR interferometry using corner reflectors

Jinghui Fan; Pengfei Tu; Xiaofang Guo; Yi Wang; Daqing Ge; Guang Liu

doi:10.1117/12.873272

3 November 2010 Monitoring the deformation of a landslide with differential SAR interferometry using corner reflectors

Jinghui Fan, Pengfei Tu, Xiaofang Guo, Yi Wang, Daqing Ge, Guang Liu

Proceedings Volume 7841, Sixth International Symposium on Digital Earth: Data Processing and Applications; 78411I (2010) https://doi.org/10.1117/12.873272
Event: The Sixth International Symposium on Digital Earth, 2009, Beijing, China

Abstract

In order to monitor the surface deformation of Shuping landslide in the Yangtze River Three Gorges area, the method of differential SAR interferometry (DInSAR) using corner reflectors (CR) was applied. 12 CR, including 10 pyramidal corner reflectors (PCR) and 2 asymmetrical cubic corner reflectors (ACCR), were designed, made, and deployed on Shuping landslide. Based on the numerical test and the preliminary analyses of 5 ENVISAT ASAR images, we concluded that: 1) ACCR can provide strong response signal even without the best SAR look angle and is especially fit for the multi-angle applications of DInSAR; 2) given a simple phase model, the least square (LS) method can be used to analyze the CR's differential phase and get the accumulative deformation value.

Citation Download Citation

Jinghui Fan, Pengfei Tu, Xiaofang Guo, Yi Wang, Daqing Ge, and Guang Liu "Monitoring the deformation of a landslide with differential SAR interferometry using corner reflectors", Proc. SPIE 7841, Sixth International Symposium on Digital Earth: Data Processing and Applications, 78411I (3 November 2010); https://doi.org/10.1117/12.873272

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