Research on extract earthquake deformation in D-InSAR by using DORIS

Abstract：As a new space geodetic technique, Differential Synthetic Aperture Radar Interferometry (D-InSAR) have more advantages than traditional geodetic technique such as all-weather, 24-hour continues surveying and ability to penetrate into substances on the earth.It can survey the slight change of surface deformation which caused by earthquake, volcano etc, and its accuracy can reach centimeter even sub-centimeter and has applied widely.The paper introduces the basic principles of D-InSAR, describes the steps of SAR data processing in DORIS software, and to derive the interferogram of co-seismic deformation by the example of Bam earthquake.

Keyword：SAR;DORIS;ESA;D-InSAR;