测绘学报 ›› 2018, Vol. 47 ›› Issue (3): 413-421.doi: 10.11947/j.AGCS.2018.20170246

• 海洋测量学 • 上一篇    下一篇

顾及波浪影响和深度约束的水下控制网点绝对坐标的精确确定

赵建虎1,2, 陈鑫华1,2, 吴永亭3, 冯杰1,2   

  1. 1. 武汉大学测绘学院, 湖北 武汉 430079;
    2. 武汉大学海洋研究院, 湖北 武汉 430078;
    3. 国家海洋局第一海洋研究所, 山东 青岛 266061
  • 收稿日期:2017-05-09 修回日期:2017-06-30 出版日期:2018-03-20 发布日期:2018-03-29
  • 通讯作者: 陈鑫华 E-mail:308062872@qq.com
  • 作者简介:赵建虎(1970-),男,教授,博士生导师,研究方向为海洋测绘。E-mail:jhzhao@sgg.whu.edu.cn
  • 基金资助:
    国家重点研发计划(2016YFB0501703;2016YFB0501700)

Determination of Absolute Coordinate of Underwater Control Point Taking Waves and Depth's Constraint into Account

ZHAO Jianhu1,2, CHEN Xinhua1,2, WU Yongting3, FENG Jie1,2   

  1. 1. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China;
    2. Marine Research Institute, Wuhan University, Wuhan 430078, China;
    3. The First Institute of Oceanography, Qingdao 266061, China
  • Received:2017-05-09 Revised:2017-06-30 Online:2018-03-20 Published:2018-03-29
  • Supported by:
    The National Key Research and Development Program of China (Nos. 2016YFB0501703;2016YFB0501700)

摘要: 为解决传统海底控制网点绝对坐标确定费时费力、垂直解精度不高的问题,提出一种顾及波浪影响和深度约束的水下控制网点绝对坐标精确确定方法。首先,开展了波浪影响研究,提出水下控制网点间高差确定方法以及利用该高差和GNSS垂直解的网点绝对高程确定方法。在此基础上,提出附加深度约束的圆走航单点绝对三维基准传递法、深度约束的二维自由网平差法及联合点间高精度深度差的组合约束平差法和三维联合约束平差法。最后对提出的方法进行验证。该方法可提高作业效率,将传统方法高程确定精度提高了1个量级。

关键词: 海底控制网, 水下基准传递, 深度约束, 控制网平差, 波浪影响

Abstract: To solve the problem that traditional underwater control point absolute positioning is time-consuming and laborious with low vertical precision, itis put forward that an accurate method with constraints of depth while taking waves into account to get absolute coordinate of underwater control point. Firstly, studiesarecarried outon the wave impact.And methods are put forward to determine the elevation difference between underwater points and the absolute elevation with GPS vertical values and the elevation difference. On this basis, methods are put forward, such asthe circle navigationwith depth's constraint to get single point's absolute coordinate, 2D free net adjustment with depth's constraint, integrated constraint adjustment,with accurate elevation difference, and 3D combined adjustment with accurate elevation difference. Finally, the experimental results show that the proposed methods can double the efficiency of traditional methods and improveprecision by one order of magnitude.

Key words: underwater control network, circle navigation, depth's constraint, combined adjustment, wave effect

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