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首页> 外文期刊>International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences >EXTRACTING 3-D DEFORMATION FIELDS FROM LEFT- AND RIGHT-LOOKING INSAR WITH SM-VCE METHOD: A CASE STUDY OF OCTOBER 21, 2016 CENTRAL TOTTORI EARTHQUAKE
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EXTRACTING 3-D DEFORMATION FIELDS FROM LEFT- AND RIGHT-LOOKING INSAR WITH SM-VCE METHOD: A CASE STUDY OF OCTOBER 21, 2016 CENTRAL TOTTORI EARTHQUAKE

机译：用SM-VCE方法从左右两侧的InSAR提取3-D形变场：以2016年10月21日中部兔取地震为例

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摘要

Three-dimensional (3-D) deformation fields with respect to the October 2016’s Central Tottori earthquake are extracted in this paper from ALOS-2 conducted Interferometric Synthetic Aperture Radar (InSAR) observations with four different incline angles, i.e., ascending/descending and left-/right-looking. In particular, the Strain Model and Variance Component Estimation (SM-VCE) method is developed to integrate the heterogeneous InSAR observations without being affected by the coverage inconformity of SAR images associated with the earthquake focal area. Compare with classical weighted least squares (WLS) method, SM-VCE method is capable for the retrieval of more accurate and complete deformation field of Central Tottori earthquake, as indicated by the comparison with the GNSS observations. In addition, accuracies of heterogeneous InSAR observations and 3-D deformations on each point are quantitatively provided by the SM-VCE method.
机译：本文从ALOS-2进行的干涉合成孔径雷达（InSAR）观测中提取了与2016年10月的鸟取中央地震有关的三维（3-D）变形场，该观测具有四个不同的倾斜角度，即上升/下降和左-/看起来不错。特别是，开发了应变模型和方差分量估计（SM-VCE）方法，以整合异构InSAR观测结果，而不受与地震震源区相关的SAR图像覆盖不整合的影响。与经典的加权最小二乘（WLS）方法相比，SM-VCE方法能够检索鸟取中部地震的更准确和完整的变形场，与GNSS观测值的比较表明。此外，SM-VCE方法可定量提供每个点上的异质InSAR观测值和3-D变形的准确性。

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