利用D-InSAR二轨法监测徐州大屯中心区地表形变
首发时间:2010-08-06
摘要:合成孔径雷达差分技术(D-InSAR)是获取大范围地表形变的一种新方法。本文首先介绍了D-InSAR二轨法提取地表形变的基本原理,然后以徐州大屯中心区为实验区域,获取了徐州大屯中心区2007年到2009年地面沉降结果,并与水准测量获取的沉降结果进行了比较。结果表明,2007年到2009年大屯中心区平均沉降量为3mm,年平均最大沉降累积量达到33.5mm,监测结果与水准测量结果相一致,说明用D-InSAR二轨法获得的形变结果能很好的反应监测区域的沉降情况。
关键词: 合成孔径雷达差分干涉测量 二轨法 地表形变 徐州大屯中心区
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Monitoring ground deformation in Datun Central District of Xuzhou using two pass D-InSAR
Abstract:Differential Synthetic Aperture Radar Interferometry (D-InSAR) is a newly developed technique for monitoring large-scale ground deformation. Firstly, the principle of two-pass D-InSAR is introduced. Then, the deformation of the Datun central district of Xuzhou from 2007.3 to 2009.1 is obtained by using two pass D-InSAR technique. The results show that the average subsidence and maximum subsidence are respectively 3mm and 33.5 mm/year during the period, which is correspond with the leveling measurement. The deformation obtained by two-pass D-InSAR technique can reflect the actual state of the area.
Keywords: D-InSAR Two Pass Ground Deformation Datun Central District of Xuzhou
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