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中文摘要：
针对单一平台DInSAR技术仅能获取雷达视线方向同震形变场的问题,根据雷达成像的几何条件,融合不同轨道、不同平台的DInSAR数据解算了拉奎拉地震的三维同震形变场。三维形变结果反映的拉奎拉地震发震断层的特征与地质调查的结果较吻合。将得到的三维形变场数据与该地区GPS观测站数据进行比较,结果表明,得到的拉奎拉地震的三维同震形变场比较可靠且精度较高。
英文摘要：
Differential Synthetic Aperture Radar Interferometry （DInSAR） can only measure one-dimensional deformation of surface along Radar line-of-sight （LOS）. However, surface changes always exhibit three-dimensional （3D） characteristics. This paper presents a method to estimate 3D deformation of L＇ Aquila earthquake by combining multi-platform DInSAR LOS data based on the imaging geometry of Radar. The characters of the surface reflected by the 3D deformation are very consistent with the geological exploration. The 3D deformation was also compared with real GPS survey, and the results demonstrate that the 3D surface deformation fields are reliable and with high accuracy.
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