国土资源遥感Issue(4)：158-164,7.DOI:10.6046/gtzyyg.2015.04.24
基于高分辨率TerraSAR-X影像的PSInSAR地表形变监测
Monitoring of surface subsidence using PSInSAR with TerraSAR-X high resolution data
摘要
Abstract
In this study, interferometric point target analysis ( IPTA) was used to monitor the surface subsidence of Changzhou City caused by factories’ immoderate exploitation of groundwater on the basis of thirty-seven TerraSAR-X high resolution stripmap data collected in this area between October 2011 and July 2013 . The results showed that several settlements appeared in Wujin area of Changzhou City, with the largest average subsidence rate up to 31 . 494 mm/a;A comparison with the average settlement rate of ASAR data shows that TerraSAR-X data could not only improve high density of PS points but also describe detailed changes and the micro-displacement situation of the scattering object, which indicates the advantages of TerraSAR-X high resolution stripmap data applied to monitoring the surface deformation. In this paper, the monitoring of land subsidence along Shenhai expressway of Changzhou by TerraSAR-X data reflects the prospects of TerraSAR-X data in monitoring artificial linear features. The survey results of bench mark verify the consistency of monitoring results and the reliability of IPTA used to monitor the surface subsidence in the city.关键词
InSAR/TerraSAR-X/干涉测量点目标分析(IPTA)/沉降监测/线状地物Key words
InSAR/TerraSAR-X/IPTA/subsidence monitorying/linear structure分类
天文与地球科学引用本文复制引用
丁荣荣,徐佳,林晓彬,许康..基于高分辨率TerraSAR-X影像的PSInSAR地表形变监测[J].国土资源遥感,2015,(4):158-164,7.基金项目
国家自然科学基金项目(编号:41301449)和地理空间信息工程国家测绘地理信息局重点实验室经费资助项目(编号:201324)共同资助。 （编号:41301449）
