摘要
小基线集技术(SBAS-InSAR)可以获取空间连续的地表变形监测结果.针对小区域的地表沉降监测进行研究,利用2018年7月20日到2020年11月18日共计69幅升轨Sentinel-1ASAR影像进行VV极化和VH极化数据处理,通过SBAS-InSAR技术获得研究区地表垂直方向形变速率.为了验证SBAS-InSAR技术在小区域范围内沉降监测的适应性,选取研究区域若干变形点进行沉降分析,将水准测量沉降结果与SBAS-InSAR变形结果进行对比分析,结果表明,SBAS-InSAR技术进行小区域沉降监测方法可行,具有一定的应用价值.
Spatially continuous surface deformation monitoring results can be obtained by small baseline techniques(SBAS-InSAR).The study monitored the surface settlement in small areas by using 69 ascending rail Sentinel-1A SAR images from July 20,2018 to November 18,2020 for VV polarization and VH polarization data,then obtained the rate of vertical surface deformation in the study area via SBAS-InSAR.To verify the adaptability of SBAS-InSAR technology in settlement monitoring in small areas,several deformation points in the study area were selected for settlement analysis and comparative analysis between the level measurement settlement results and SBAS-InSAR deformation result.The results show that SBAS-InSAR technology for landslide deformation monitor in small areas has a feasibility and certain application value.
作者
喜文飞
杨正荣
赵子龙
钱堂慧
周定义
XI Wen-fei;YANG Zheng-rong;ZHAO Zi-long;QIAN Tang-hui;ZHOU Ding-yi(Faculty of Geography,Yunnan Normal University,Kunming 650500,China;Yunnan Haiju Geographic Information Technology Co.,Ltd.,Kunming 650000,China;Faculty of Land Resources Engineering,Kunming University of Science and Technology,Kunming 650093,China)
出处
《云南师范大学学报（自然科学版）》
2022年第4期41-44,共4页
Journal of Yunnan Normal University:Natural Sciences Edition
基金
云南省科技厅面上资助项目(202001AT070059).
关键词
小基线集技术
变形速率
水准测量
小区域沉降监测
SBAS-InSAR
Deformation rate
Level measurement
Settlement monitoring in small areas
