A depth-constraint multi-target positioning acoustic approach in shallow waters

被引：0
|
作者：
Liu H. [1 ]
Wang Z. [1 ,2 ]
Zhao S. [1 ]
机构：
[1] School of Geosciences, China University of Petroleum (East China), Qingdao, 266580, Shandong
[2] Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, Shandong
来源：
Shiyou Diqiu Wuli Kantan/Oil Geophysical Prospecting | 2019年 / 54卷 / 06期
关键词：
Acoustic positioning; Depth interpolation; Depth-constraint; Single beam sounding;
D O I：
10.13810/j.cnki.issn.1000-7210.2019.06.001
中图分类号：
学科分类号：
摘要：
A depth-constraint multi-target positioning acoustic approach in shallow waters is proposed in this paper using shipborne DGPS data and single-beam sounding data. Combined with the spatial interpolation method of regional natural critical points, a regional elevation model is built, and the transponder elevation interpolation is carried out for the horizontal position of IGG3 tolerance estimation solution. According to the symmetry observation and the smooth seabed topography in the working area, bending errors of acoustic line are further eliminated with an acoustic line bending segmented model in order to improve the planar positioning accuracy of multi-targets in shallow waters. Experimental results in the South China Sea show that the model built by the proposed approach is characterized by strong anti-gross-error capability and can effectively improve the positioning accuracy under the conditions of inaccurate sound velocity measurements and observation data with large gross errors. © 2019, Editorial Department OIL GEOPHYSICAL PROSPECTING. All right reserved.
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页码：1181 / 1187
页数：6
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