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首页> 外文会议>IEEE International Geoscience and Remote Sensing Symposium >Measurement crustal movement along altyn tagh fault by using multi-mode InSAR time series analysis
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Measurement crustal movement along altyn tagh fault by using multi-mode InSAR time series analysis

机译：利用多模式InSAR时间序列分析测量沿altyn达格断层的地壳运动

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摘要

High-coherent pixels detection and spatial coverage restriction are the key difficulties when applying the InSAR time series analysis in Altyn Tagh Fault (ATF) system based on stripmap SAR data. In this paper, a modified InSAR time series analysis method combining PS and DS is presented in order to increase the number of selected high-coherent pixels. Then a displacement velocities merging strategy by fitting least squares surfaces is proposed, which could decrease the velocities differences in overlap area between adjacent stripmap SAR tracks, so as to acquire the deformation results of the whole research area. Moreover, in order to avoid the merging problem caused by the inconsistent measurements between adjacent stripmap SAR tracks, processing strategies of ScanSAR PS-InSAR and ScanSAR SBAS are presented respectively. All of the methodology we proposed have been applied to the crustal movement measurement along the west section of ATF and reliable results have been acquired.
机译：在基于带状图SAR数据的Altyn Tagh故障（ATF）系统中应用InSAR时间序列分析时，高相干像素检测和空间覆盖限制是关键难题。本文提出了一种改进的结合PS和DS的InSAR时间序列分析方法，以增加选择的高相干像素的数量。然后提出了通过拟合最小二乘曲面的速度融合策略，可以减小相邻带状图SAR轨迹之间重叠区域的速度差异，从而获得整个研究区域的变形结果。此外，为避免相邻条带状图SAR磁道之间测量不一致导致的合并问题，分别提出了ScanSAR PS-InSAR和ScanSAR SBAS的处理策略。我们提出的所有方法已应用于ATF西段的地壳运动测量，并获得了可靠的结果。

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