摘要
北京市的地表沉降已经严重威胁到人民的生产生活,亟需合适的手段来监测地表沉降,PS-InSAR方法为此提供了一种可能。文章采用25景北京地区的sentinel 1A SLC数据进行PS处理,得到北京城区主要部分的2017年6月—2019年6月间年均沉降量和累积沉降量。研究区域中,朝阳区最大年均沉降量达到了20.47 mm,同时,按时间顺序逐对用D-InSAR方法处理,得到了两两差分结果。对比两种方法得到的结果,可以在一定程度上体现出PS-InSAR方法结果的精确度。
The surface subsidence of Beijing has seriously threatened the production and life of the people,and it is urgent to find appropriate means to monitor the surface subsidence,the PS-InSAR method provides a possibility.The sentinel 1A SLC data with 25 views of Beijing were used for PS processing to obtain the average annual settlement and cumulative settlement of the main part of Beijing city from June 2017 to June 2019 in this paper.In the study area,the maximum annual settlement in Chaoyang district reached 20.47 mm.At the same time,the D-InSAR method was used to deal with each pair in time order,and the pairwise difference results were obtained.Comparing the results obtained by the two methods,the accuracy of the results obtained by the PS-InSAR method can be reflected to a certain extent.
作者
孙浜
李奕彤
唐诗金典
王琛茜
张满
颜春燕
Sun Bang;Li Yitong;Tang Shijindian;Wang Chenxi;Zhang Man;Yan Chunyan(China University of Geosciences(Beijing),Beijing 100083,China)
出处
《无线互联科技》
2020年第11期113-118,共6页
Wireless Internet Technology
基金
中国地质大学(北京)2019年大学生实践创新训练计划项目,项目编号:X201911415052。
