基于小基线集技术的城市精细化地表形变监测  

Fine management monitoring of urban surface deformation based on small baseline subset technique

作　　者：尹继鑫 何永晴 陈兴芳 王伟 莫玉娟 吴洋 YIN Jixin;HE Yongqing;CHEN Xingfang;WANG Wei;MO Yujuan;WU Yang(Xining Institute of Surveying and Mapping,Xining 810000,China;Xining Meteorological Bureau,Xining 810000,China;Guangdong University of Technology,Guangzhou 510006,China)

机构地区：[1]西宁市测绘院,青海西宁810000 [2]西宁市气象局,青海西宁810000 [3]广东工业大学,广东广州510006

出　　处：《测绘工程》2018年第10期58-63,共6页Engineering of Surveying and Mapping

摘　　要：近年来,城市化建设的不断进步和城市人口的不断增加给城市的建设、规划和管理都带来不小的压力,城市居民生命财产安全的保障以及基础设施的建设成为影响城市发展面临的重大难题。文中研究利用InSAR技术全天时、全天候、范围广、不受天气影响等特点,对城市地表形变进行检测。同时,研究选取重庆市城区作为研究区域,Sentinel-1A数据作为SAR影像,采用SBAS技术提高监测精度,得到重庆市城区在2017年5月~2018年5月的时间序列形变。研究基本查明该区域的整体形变情况,并从实验结果中找到抬升和下沉明显的区域,为城市大范围的地表形变监测和城市精细化管理提供数据支持和理论基础。In recent years, the continuous progress of urbanization and the increase of urban population have brought a lot of pressure on the construction, planning and management of cities. Protecting the safety of urban residents＇ lives and constructing the infrastructure have become the major problem which influence the development of cities. This study uses InSAR technology to detect urban surface deformations throughout the day, all weather, wide ranging, and weather insensitive features. At the same time, Chongqing City is selected as the study area, Sentinel 1A data as SAR image, SBAS technology used to improve the monitoring accuracy, and the time series deformation of Chongqing urban area from May 2017 to May 2018 is obtained. This study basically explores the deformation of the whole region, and finds areas where significant uplift or subsidence occurred. This technology provides data support and theoretical basis for the city＇s large-scale surface deformation detection and urban fine management.

关 键 词：SBAS 地表形变 时间序列 城区 精细化管理 

分 类 号：TU796[建筑科学—建筑技术科学]