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基于PS-InSAR技术的武进区地面沉降探测 被引量:3

Ground subsidence detection of Wujin Based on PS-InSAR
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摘要 合成孔径雷达干涉测量(InSAR)技术为地表形变监测提供了一种全新的手段,它具有全天时、全天候、高空间分辨率、大范围以及成本低等优点。选取了2007年1月—2010年4月28景Envisat ASAR数据,采用基于InSAR技术发展起来的永久散射体雷达干涉测量技术(PS-InSAR)对常州市武进区的地面沉降进行了反演,获取了该区2007年—2010年的地表形变场(年沉降速率和累积沉降量),并用外部水准数据对PS-InSAR的监测结果进行了对比验证,两者吻合较好,证实了InSAR技术监测地表形变的可行性与可靠性。 Synthetic Aperture Radar Interferometry(InSAR)provides a new tool for ground subsidence monitoring,and it has the advantages of all-time,all-weather,high spatial resolution,large-scale,low cost and so on.28 Images,January 2007 to April 2010,acquired from Envisat ASAR are selected to inverse the ground deformation field(annual sedimentation rate and cumulative settlements)of Wujin district,using permanent scatters radar interferometry(PS-InSAR)developed based on InSAR technology.The PS-InSAR monitoring results are in good agreement with the external leveling measurements,so it confirms the feasibility and reliability of this method on surface deformation monitoring.
作者 张爱明
出处 《现代测绘》 2016年第2期1-4,共4页 Modern Surveying and Mapping
关键词 PS-INSAR 形变监测 地面沉降 PS-InSAR multiple-sensors ground subsidence
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