Estimation of 3-D Surface Displacement Based on InSAR and Deformation Modeling
Estimation of 3-D Surface Displacement Based on InSAR and Deformation Modeling
复制标题
基于 InSAR 和变形建模的 3-D 表面位移估计
DOI：
10.1109/tgrs.2016.2634087
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发表时间：
2017
影响因子：
8.2
通讯作者：
Lu Zhong
中科院分区：
文献类型：
--
作者：
Hu Jun;Ding Xiao-Li;Zhang Lei;Sun Qian;Li Zhi-Wei;Zhu Jian-Jun;Lu Zhong
提出了一种基于一维干涉合成孔径雷达（干涉合成孔径雷达）视距测量和地表变形建模的地下流体体积变化引起的三维地表位移测绘新方法。根据弹性半空间理论，建立了地表变形与源流体体积变化的关系模型。所提出的方法的一个显著优点是，它有效地扩展了太阳同步轨道侧视合成孔径雷达的能力，该雷达基本上只能精确地测量一维位移，或者当组合来自多个轨道或平台的干涉合成孔径雷达测量时，最多只能测量二维位移。用模拟和真实的数据集进行了实验研究，以测试该方法的性能。结果表明，该方法工作得很好。
A new approach is presented for mapping 3-D surface displacement caused by subsurface fluid volumetric change based on 1-D interferometric synthetic aperture radar (InSAR) line-of-sight measurements and surface deformation modeling. The relationship between surface deformation and source fluid volumetric change is modeled according to elastic half-space theory. A distinctive advantage of the proposed approach is that it effectively extends the capability of the sun-synchronous orbit side-looking synthetic aperture radar that has been essentially only able to measure 1-D displacements accurately or at most 2-D displacements when InSAR measurements from more than one orbit or platform are combined. Experimental studies are carried out with both simulated and real data sets to test the performance of the method. The results have demonstrated that the approach works very well.