测绘通报 ›› 2023, Vol. 0 ›› Issue (10): 117-122.doi: 10.13474/j.cnki.11-2246.2023.0305

• 技术交流 • 上一篇    下一篇

主被动光学卫星遥感数据融合浅海水深测量

张春玲1, 李由之2, 张刚3,4, 邱振戈5   

  1. 1. 河南省地图院, 河南 郑州 450008;
    2. 南京大学地理与海洋科学学院, 江苏 南京 210023;
    3. 北京四维远见信息技术有限公司, 北京 100070;
    4. 中国测绘科学研究院, 北京 100830;
    5. 上海海洋大学海洋科学学院, 上海 201306
  • 收稿日期:2023-01-28 发布日期:2023-10-28
  • 作者简介:张春玲(1964-),女,高级工程师,主要研究方向为摄影测量与遥感。E-mail:zhangclrs@163.com

Shallow water depth measurement based on fusion of active and passive optical satellite remote sensing data

ZHANG Chunling1, LI Youzhi2, ZHANG Gang3,4, QIU Zhenge5   

  1. 1. Map Institute of Henan Province, Zhengzhou 450008, China;
    2. School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China;
    3. Beijing Geo-Vision Technology Limited Company, Beijing 100070, China;
    4. Chinese Academy of Surveying and Mapping, Beijing 100830, China;
    5. College of Marine Science, Shanghai Ocean University, Shanghai 201306, China
  • Received:2023-01-28 Published:2023-10-28

摘要: 针对双介质立体摄影测量中水面高程不确定性带来的测深误差,本文提出了主被动光学卫星遥感数据融合浅海水深测量的技术路线,探讨了主动ICESat-2激光测高数据与被动WorldView-3立体像对数据融合的测深模型。首先通过ICESat-2 激光测高数据提取海面高程作为WorldView-3立体像对数据水面高程纠正的起算位置,然后利用区域网平差的二次多项式加入适当的水深改正量。在我国南海岛礁开展了主被动光学卫星遥感数据融合进行浅海水深测量试验。结果表明,主被动融合测深模型的均方根误差(RMSE)小于0.70 m,实现了高精度、无实测控制点的浅海水深测量。

关键词: 浅海测深, 主被动融合, ICESat-2, WorldView-3, 光学卫星遥感

Abstract: Aiming at the bathymetric error caused by the uncertainty of water surface elevation in dual-medium stereo photogrammetry, a technical route of shallow water depth measurement based on fusion of active and passive optical satellite remote sensing data is proposed, and the bathymetric model of integrating active ICESat-2 laser altimetry data and passive WorldView-3 stereo image pair data is studied. Firstly, the sea surface elevation is extracted from ICESat-2 laser altimetry data as the starting position for water surface elevation correction of WorldView-3 stereo image pair data. Then the appropriate water depth correction is added using the quadratic polynomial of the area network parity. A shallow water bathymetry experiment is carried out on the fusion of active and passive optical satellite remote sensing data in South China Sea. The results show that the root mean square error (RMSE) of the active and passive fusion bathymetry model is less than 0.70 m. The active-passive fusion bathymetric model realizes high-precision shallow water bathymetry without measured control points.

Key words: shallow water bathymetry, active-passive fusion, ICESat-2, WorldView-3, optical satellite remote sensing

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