地基合成孔径雷达的发展现状及应用

吴星辉, 马海涛, 张杰

吴星辉, 马海涛, 张杰. 地基合成孔径雷达的发展现状及应用[J]. 武汉大学学报 ( 信息科学版), 2019, 44(7): 1073-1081. DOI: 10.13203/j.whugis20190058
引用本文: 吴星辉, 马海涛, 张杰. 地基合成孔径雷达的发展现状及应用[J]. 武汉大学学报 ( 信息科学版), 2019, 44(7): 1073-1081. DOI: 10.13203/j.whugis20190058
WU Xinghui, MA Haitao, ZHANG Jie. Development Status and Application of Ground-Based Synthetic Aperture Radar[J]. Geomatics and Information Science of Wuhan University, 2019, 44(7): 1073-1081. DOI: 10.13203/j.whugis20190058
Citation: WU Xinghui, MA Haitao, ZHANG Jie. Development Status and Application of Ground-Based Synthetic Aperture Radar[J]. Geomatics and Information Science of Wuhan University, 2019, 44(7): 1073-1081. DOI: 10.13203/j.whugis20190058

地基合成孔径雷达的发展现状及应用

基金项目: 

中央高校基本科研业务费专项资金 FRF-TP-18-015A3

详细信息
    作者简介:

    吴星辉, 博士生, 主要研究方向为岩土工程、边坡稳定性与位移监测。wuxinghui92@163.com

  • 中图分类号: P228;TN951

Development Status and Application of Ground-Based Synthetic Aperture Radar

Funds: 

The Fundamental Research Funds for the Central Universities FRF-TP-18-015A3

More Information
    Author Bio:

    WU Xinghui, PhD candidate, specializes in geotechnical engineering, slope stability and displacement monitoring. E-mail: wuxinghui92@163.com

  • 摘要: 为了使地基合成孔径雷达(ground-based synthetic aperture radar,GB-SAR)在地表微变形监测领域得到更广泛的应用,首先概述了GB-SAR的主要类型,并选择几种具有代表性的系统介绍了其工作原理及重要参数。然后以中国安全生产科学研究院自主研发的边坡合成孔径雷达型地基雷达为例,总结了常规差分干涉处理中的重要技术,利用相似模拟实验验证了GB-SAR的监测精度,并且展现了GB-SAR在露天矿山边坡监测、矿山排土场监测和山体滑坡应急救援监测方面的应用。最后提出了GB-SAR在变形监测中存在的一些问题以及后续发展中的建议。
    Abstract: In order to promote the wider use of ground-based synthetic aperture radar (GB-SAR) in the field of surface micro-deformation monitoring, this paper summarizes the main types of GB-SAR and introduces the working principles and important parameters of some representative systems. By taking the S-SAR (slope-synthetic aperture radar) ground-based radar independently developed by the China Academy of Safety and Production Science as an example, the key processing techniques utilized by the GB-SAR are introduced. Experiments verify the accuracy of GB-SAR. It also shows the application of GB-SAR in open pit mine slope monitoring, mine dumping site and landslide emergency rescue. Finally, the problems and suggestions of GB-SAR in monitoring are proposed.
  • 图  1   典型直线扫描地基雷达系统

    Figure  1.   Typical Linear Scanning Ground-Based Radar System

    图  2   地基SAR差分干涉处理流程

    Figure  2.   Scheme of Ground-Based SAR Differential Interferometric Processing

    图  3   GB-SAR差分干涉测量原理示意图

    Figure  3.   Schematic Diagram of Ground-Based SAR Differential Interferometry

    图  4   雷达监测形变示意图

    Figure  4.   Diagram of Radar Monitoring Deformation

    图  5   形变监测结果与地理地形配准实例

    Figure  5.   Example of Deformation Monitoring Results and Geographic Terrain Registration

    图  6   GB-SAR干涉形变监测精度验证实验流程图

    Figure  6.   Flow chart of Verification Experiment of Interferometric Deformation Monitoring Accuracy by Ground-Based SAR

    图  7   时序位移变化序列

    Figure  7.   Sequence of Time Series Shifts

    图  8   降雨量与累计位移量关系图

    Figure  8.   Relationship Between Rainfall and Cumulative Displacement

    图  9   成像结果与实际施工图

    Figure  9.   Imaging Results and Actual Construction Drawings

    图  10   雷达图像和实物对应关系

    Figure  10.   Correspondence of Radar Image and Physical Object

    图  11   选点累积形变随时间变化曲线

    Figure  11.   Curves of Cumulative Deformation over Time of Selected Points

    图  12   选点位移速度随时间变化曲线

    Figure  12.   Curves of Displacement Velocity over Time of Selected Points

    表  1   监测区域位移分析

    Table  1   Displacement Analysis of Monitoring Area

    区域 点号 位移最大值
    /mm
    发生时间 位移累积量
    /mm
    1 P1 15.44 2018-08-14 T07:53 15.44
    P2 12.27 2018-08-14 T07:53 12.27
    P3 16.44 2018-08-14 T07:53 16.44
    P4 17.16 2018-08-14 T07:53 17.16
    2 P1 8.54 2018-08-14 T07:53 8.54
    P2 9.03 2018-08-14 T07:53 9.03
    P3 9.91 2018-08-14 T07:53 9.91
    P4 8.51 2018-08-14 T07:53 8.51
    P5 5.60 2018-08-14 T00:22 5.04
    P6 6.31 2018-08-14 T06:51 6.21
    3 P1 -3.02 2018-08-14 T04:37 -2.73
    P2 -5.28 2018-08-14 T02:07 -4.42
    P3 -3.35 2018-08-14 T02:07 -2.25
    P4 14.90 2018-08-14 T00:22 14.33
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  • 收稿日期:  2019-03-10
  • 发布日期:  2019-07-04

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