地球物理学进展 ›› 2018, Vol. 33 ›› Issue (4): 1430-1437.doi: 10.6038/pg2018BB0278

• 固体地球物理及空间物理学(大气、行星、地球动力学、重磁电及地震学、地热学) • 上一篇    下一篇

地表形变时间序列InSAR监测法综述

王霞迎1,赵超英1,2,尹慧芳3   

  1. 1. 长安大学地质工程与测绘学院,西安 710054
    2. 地理国情监测国家测绘地理信息局工程技术研究中心,西安 710054
    3. 国家测绘地理信息局 大地测量数据处理中心,西安 710054;
  • 收稿日期:2017-10-06 修回日期:2018-07-21 出版日期:2018-08-20 发布日期:2018-09-13
  • 作者简介:王霞迎,女,1989年生,山东菏泽人,博士在读,主要从事InSAR数据处理研究.(E-mail: yingxiawang@163.com)
  • 基金资助:
    国家自然科学基金项目(41731066,41372375,41628401)

Review: deformation time series method with InSAR techniques

WANG Xia-ying1,ZHAO Chao-ying1,2,YIN Hui-fang3   

  1. 1. College of Geology Engineering and Geomatics, Chang’an University, Xi’an 710054, China;
    2. National Administration of Surveying, Mapping and Geoinformation, Engineering Research Center of National Geographic Conditions Monitoring, Xi’an 710054, China;
    3. Geodetic Data Processing Center, National Administration of Surveying, Mapping and Geoinformation, Xi’an 710054, China;;
  • Received:2017-10-06 Revised:2018-07-21 Online:2018-08-20 Published:2018-09-13

摘要:

地学研究在掌握地表运动规律,寻求与突发或长期影响事件之间相关性,进而预防地质灾害工作中具有重要的作用.相对于GPS和水准等传统的大地测量技术,InSAR(Interferometric Synthetic Aperture Radar)技术可大范围高精度获取地表形变信息,具有较大优势;同时,地表形变时间序列的获取提供了更全面地表运动信息,进一步拓宽了地学的探究范围.然而,InSAR技术以微波信号传播记录卫星至地面之间距离变化,其会受传播路径、传感器位置等信息不精确的影响.因此,在多种误差干扰情况下,如何由InSAR观测量较为精确获取形变的时间序列也成为关注的问题.国内外学者已有多种研究成果,适当的分类汇总可以全面掌握时序求解方法发展过程、适用范围等,但是,目前缺少对其系统的总结.基于此,本文从观测对象、函数模型、随机模型、解算准则、质量评估五个方面,总结了利用InSAR技术获取地表形变时间序列的方法,为不同研究区域获取时间序列提供参考.

关键词: InSAR, 时间序列, 函数模型, 随机模型, 解算准则, 质量评估

Abstract:

Geological research has played a vital role in mastering ground surface movement discipline, seeking for the relation of ground movement with the emergent event and the long-term influence, further preventing geological disaster. Compared with the traditional geodetic technologies, such as GPS and leveling technologies, InSAR (Interferometric Synthetic Aperture Radar) has huge superiority for its wide-range and high-accuracy, the available of deformation time series provides more information about the ground deformation and extends the study scope of geodesy. However, InSAR records the distance change between satellite on the orbit and the ground target with microwave signal, which will be affected by the unsteadiness of propagation path and the imprecision of sensor position. As a result, under the conditions of multiple error interference, how to obtain precise time series with InSAR is concerned problem, domestic and foreign experts have lots of research fruits, the proper summary work will help us master generally the development process and applicable scope of time series getting method, however, there’s no comprehensive review about that. Based on which, this paper sums up different getting time series methods by InSAR, in terms of observation objects, functional model,random model,resolution rule,quality assessment, and provides guidelines for the application.

Key words: InSAR, time series, functional model, random model, resolution principle, quality evaluation

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