基于D-InSAR技术的大范围地灾普查分析——以雅安为例  

Survey and Analysis of Large-scale Ground Disaster Based on D-InSAR Technology——Taking Ya'an as an Example

作　　者：闫鑫 冯柏程 刘文强 Yan Xin;Feng Baicheng;Liu Wenqiang(MoonBristar(Beijing)Technology Co.,Ltd.,Beijing,China)

机构地区：[1]月明星(北京)科技有限公司,北京

出　　处：《科学技术创新》2024年第16期62-65,共4页Scientific and Technological Innovation

摘　　要：研究针对区域地灾普查的需求,利用Sentinel-l卫星影像数据,通过二轨法合成孔径雷达干涉差分干涉技术(D-InSAR)获取雅安地区2023年10月至2023年12月间的大范围地表形变信息。处理结果表明,在影像覆盖期间,雅安地区沉降形变主要以东部、南部为主,地表最大沉降量为6.7 cm。D-InSAR技术能够为地灾普查提供高精度、大范围的形变信息。To meet the need of regional geological disaster survey,the study made use of Sentinel-1 satellite image data and employed Differential Interferometric Synthetic Aperture Radar(D-InSAR)technology through two-pass method to acquire large-scale surface deformation information in Ya'an area from October 2023 to December 2023.The processing results showed that during the image coverage period,the settlement deformation in Ya'an area was mainly concentrated in the east and south,with the maximum surface settlement of 6.7 cm.D-InSAR technology can provide high-precision and large-scale deformation information for geological disaster survey.

关 键 词：地灾普查 D-INSAR 数据分析 

分 类 号：P237[天文地球—摄影测量与遥感]