INSAR技术在北京来广营地区地面沉降监测中的应用

摘要

With the rapid development of Beijing urban construction,more and more the land subsidence in the plain area becomes severe.Interferometric Synthetic Aperture Radar（InSAR） has much more advantages with macro-region,quick-speed,high-precision and short-periodicity,and it can provide convenient and efficient technical methods for monitoring the land subsidence.This paper uses SAR data from ENVISAT-1 satellite to monitor the land subsidence of Laiguangying area of Beijing from 2004 to 2005,and get the monitoring results through InSAR technology.The analysis results show that it is feasible to monitor land subsidence in Beijing plain area with InSAR technology.%北京市平原地区地面沉降危害日益显著,合成孔径雷达干涉测量（InSAR）具有快速、高精度、周期短等优势,可为城市地面沉降监测提供有效的技术手段。本文选用ENVISAT-1卫星SAR数据监测研究2004-2005年北京来广营地区地面沉降,利用InSAR差分技术得到该地区地面沉降监测结果。