Sentinel-1A_IW雷达影像在地震形变信息提取中的应用
发布时间：2019-02-26 18:07
【摘要】：基于两轨法差分干涉原理,在介绍强度图生成和差分干涉测量提取形变信息处理流程的基础上,结合Sentinel-1A卫星采用的精密轨道控制技术和TOPS技术,利用欧空局的SNAP软件平台和相位解缠软件SNAPHU处理Sentinel-1A_IW雷达影像,提取了皮山县震区的地表形变信息,并对结果进行了分析。虽然研究区被第四系冲积、洪积、坡积物等覆盖,但根据地表河流流向、冲洪积扇的空间方位等迹象和震后形变量的空间分布可推断出皮西那断裂左端可能存在向北西方向延伸的隐伏断裂。
[Abstract]:Based on the principle of two-orbit differential interferometry, on the basis of introducing the process of generating intensity diagram and extracting deformation information by differential interferometry, the precise orbit control technology and TOPS technology used by Sentinel-1A satellite are combined. The SNAP software platform of ESA and the phase unwrapping software SNAPHU are used to process the Sentinel-1A_IW radar image. The surface deformation information of the earthquake area in Pishan County is extracted and the results are analyzed. Although the study area is covered by Quaternary alluvial, slope and so on, according to the flow of surface rivers, The spatial orientation of alluvial fan and the spatial distribution of post-earthquake deformation can be inferred that there may be hidden faults extending northward at the left end of the Pishna fault.
【作者单位】： 成都理工大学国土资源部地学空间信息技术重点实验室;
【基金】：国家自然科学基金资助项目《区域构造联合/复合变形场与应力场遥感图像“分层”解析理论及方法》(批准号:41372340)
【分类号】：P315.7;P225.1
本文编号：2431014
[Abstract]:Based on the principle of two-orbit differential interferometry, on the basis of introducing the process of generating intensity diagram and extracting deformation information by differential interferometry, the precise orbit control technology and TOPS technology used by Sentinel-1A satellite are combined. The SNAP software platform of ESA and the phase unwrapping software SNAPHU are used to process the Sentinel-1A_IW radar image. The surface deformation information of the earthquake area in Pishan County is extracted and the results are analyzed. Although the study area is covered by Quaternary alluvial, slope and so on, according to the flow of surface rivers, The spatial orientation of alluvial fan and the spatial distribution of post-earthquake deformation can be inferred that there may be hidden faults extending northward at the left end of the Pishna fault.
【作者单位】： 成都理工大学国土资源部地学空间信息技术重点实验室;
【基金】：国家自然科学基金资助项目《区域构造联合/复合变形场与应力场遥感图像“分层”解析理论及方法》(批准号:41372340)
【分类号】：P315.7;P225.1
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