测绘学报 ›› 2022, Vol. 51 ›› Issue (7): 1485-1519.doi: 10.11947/j.AGCS.2022.20220224

• 摄影测量学与遥感 • 上一篇    下一篇

雷达影像地表形变干涉测量的机遇、挑战与展望

李振洪1,2,3, 朱武1,2,3, 余琛1,4, 张勤1,3, 张成龙1,2, 刘振江1,2, 张雪松1,2, 陈博1,2, 杜建涛1,2, 宋闯1,4, 韩炳权1,2, 周佳薇1,2   

  1. 1. 长安大学地质工程与测绘学院, 陕西 西安 710054;
    2. 长安大学地学与卫星大数据研究中心, 陕西 西安 710054;
    3. 西部矿产资源与地质工程教育部重点实验室, 陕西 西安 710054;
    4. 纽卡斯尔大学工程学院, 英国 纽卡斯尔 NE1 7RU
  • 收稿日期:2022-03-30 修回日期:2022-07-01 发布日期:2022-08-13
  • 作者简介:李振洪(1975-),男,博士,教授,主要研究方向包括影像大地测量、地质灾害、人工大型建筑物稳定性和精准农业。E-mail:Zhenhong.Li@chd.edu.cn
  • 基金资助:
    国家自然科学基金(41941019;42074040);科技部国家重点研发计划(2020YFC1512000);陕西省科技创新团队项目(2021TD-51),陕西省地学大数据与地质灾害防治创新团队(2022);欧洲空间局-科技部国家遥感中心龙计划5项目(59339);中央高校基本科研业务费专项资金(300102260301;300102262902;300102261108;300203211261)

Interferometric synthetic aperture radar for deformation mapping: opportunities, challenges and the outlook

LI Zhenhong1,2,3, ZHU Wu1,2,3, YU Chen1,4, ZHANG Qin1,3, ZHNAG Chenglong1,2, LIU Zhenjiang1,2, ZHANG Xuesong1,2, CHEN Bo1,2, DU Jiantao1,2, SONG Chuang1,4, HAN Bingquan1,2, ZHOU Jiawei1,2   

  1. 1. School of Geological Engineering and Geomatics, Chang'an University, Xi'an 710054, China;
    2. Big Data Center for Geosciences and Satellites, Chang'an University, Xi'an 710054, China;
    3. Key Laboratory of Western China's Mineral Resources and Geological Engineering, Ministry of Education, Xi'an 710054, China;
    4. School of Engineering, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
  • Received:2022-03-30 Revised:2022-07-01 Published:2022-08-13
  • Supported by:
    The National Natural Science Foundation of China (Nos. 41941019|42074040)|The National Key Research and Development Program of China (No. 2020YFC1512000)|Shaanxi Province Science and Technology Innovation Team (No. 2021TD-51)|Shaanxi Province Geoscience Big Data and Geohazard Prevention Innovation Team (No. 2022)|ESA-MOST DRAGON-5 Project (No. 59339)|Fundamental Research Funds for the Central Universities (Nos. 300102260301|300102262902|300102261108|300203211261)

摘要: 随着合成孔径雷达(SAR)卫星的不断发射,合成孔径雷达干涉测量技术(interferometric synthetic aperture radar,InSAR)得到前所未有的发展机遇,同时也面临诸多挑战。本文首先简要介绍了SAR卫星发展现状与InSAR技术的基本原理,并系统梳理了干涉图堆叠(InSAR stacking)、小基线集干涉测量(small baseline subset InSAR,SBAS-InSAR)、永久散射体干涉测量(persistent scatterer InSAR,PS-InSAR)、分布式散射体干涉测量(distributed scatterer InSAR,DS-InSAR)和分频干涉测量(split-bandwidth interferometry,SBI)等先进InSAR技术的优缺点。在此基础上,指出目前InSAR技术面临的主要挑战(相位失相干、大气延迟、相位解缠、几何畸变和多维变形测量)及相应的解决方案。进一步从地震、火山、滑坡、地面沉降、冰川运动、人工建构筑物位移变形及大气水汽含量估计等不同的应用场景分析了InSAR技术的应用现状和存在的缺陷。最后,展望目前InSAR的发展趋势,随着更高空间分辨率,更高时间分辨率,更轻小化SAR卫星的不断发展,InSAR技术将会被应用到越来越多的新场景,激励我国雷达影像干涉测量更快发展。

关键词: 雷达影像干涉测量, 基本原理, 应用场景, 展望, 综述

Abstract: With frequent launches of synthetic aperture radar (SAR) satellites, interferometric SAR (InSAR) technology has been presented with unprecedented opportunities along with many new challenges for deformation mapping. In this paper, we concisely demonstrate the current development of SAR satellites and the principle of the InSAR technique, and then systematically review the advantages and disadvantages of a set of advanced InSAR techniques including InSAR stacking, small baseline subset InSAR (SBAS-InSAR), persistent scatterer InSAR (PS-InSAR),distributed scatterer InSAR (DS-InSAR) and split-bandwidth interferometry (SBI).On this basis, major challenges currently hampering InSAR applications (e.g., coherent loss, atmospheric distrubence, phase unwrapping errors, geometric distortions and multi-dimensional surface displacements) are investigated and their corresponding possible solutions are discussed. Then, we review the current status, particularly their limitations, of various typical InSAR applications under different scenarios such as earthquakes, volcanoes, landslides, ground subsidence, glaciers, infrastructure displacement monitoring, and atmospheric water vapour mapping. Finally, we present the outlook of InSAR, suggesting that with the continuous development of higher spatial resolution, higher temporal resolution and smaller SAR satellites, InSAR shall be applied to a number of new applications that cannot be achieved by traditional methods, bringing greater inspiration to the development of InSAR in China.

Key words: InSAR, principle, application scenarios, outlook, review

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