基于InSAR技术对杭州市地表形变进行监测分析

Discuss on the Surface Deformation Monitoring Technology in Hangzhou city Based on InSAR

目前的城市监测技术方法很多,包括水准测量、数字摄影测量、 GPS数据融合等。作为传统沉降监测技术的水准测量,具有精度较高、成果可靠、操作简便等优点。但其劳动强度大,时间周期长。本文利用InSAR技术对杭州市进行地表形变监测,获取了杭州市近4年内的形变成果,利用SBAS-InSAR技术,合计1472天的ALOS卫星PALSAR传感器的存档数据对杭州市地面形变进行了监测,对沉降量进行了分析和沉降面积的统计,完成了对于杭州市地面形变定量分析。

There are many current urban monitoring techniques,including leveling,digital photogrammetry,and GPS data fusion.As the leveling measurement of traditional settlement monitoring technology,it has the advantages of high precision,reliable results and easy operation.However,it has a high labor intensity and a long time period.In this paper,the InSAR technology is used to monitor the surface deformation of Hangzhou,and the deformation results of Hangzhou in the past 4 years are obtained.The SARAS-InSAR technology is used to monitor the ground deformation of Hangzhou based on the archived data of the ALOS satellite PALSAR sensor of 1472 days.The settlement analysis and settlement area statistics were carried out,and the quantitative analysis of ground deformation in Hangzhou was completed.