【摘要】 介绍了差分干涉测量的原理、差分干涉数据对的选取方法,以及三轨法差分干涉测量数据处理的流程。利用星载合成孔径雷达差分干涉(D-InSAR)测量技术和ENVISAT ASAR雷达数据对2003年12月26日伊朗Bam 6.5级地震引起的地表形变场进行了测量试验,成功地获取了Bam地震的蝴蝶状的同震形变场生成了地表形变的等值线图,并且根据相干图确定了地震造成破坏最严重的区域的位置、分布及面积。试验证明D-InSAR技术是地表形变测量和地震研究的一个强大和有效的工具。更多还原

【Abstract】 The principle of differential interferometric(D-In) technique,the method for selecting proper D-In data pairs,and the flowchart of 3-pass D-In data processing are introduced firstly.Then using the differential interferometric on synthetic aperture radar(D-InSAR) technique and the ENVISAT ASAR data,the monitering to co-seismic deformation field in the Bam MW6.5 earthquake in Iran,on December 26,2003,is taken as application.As the result,the butterfly shap co-seismic deformation field of the Bam earthquake is gotten successfully,the isoline map of the defermation is generated,and the position,distribution and area of seriously destruction region are determined according to the coherence map.The test proves that D-InSAR technique is a powerful tool to measure surface deformation and to study earthquake.更多还原