Precise Positioning of Underwater Static Objects without Sound Speed Profile

被引：94

作者：

Yang, Fanlin ^{[1
,2
]}

Lu, Xiushan ^{[1
,2
]}

Li, Jiabiao ^{[3
]}

Han, Litao ^{[1
]}

Zheng, Zuoya ^{[1
,2
]}

机构：

[1] Shandong Univ Sci & Technol, Geomat Coll, Qingdao 310012, Peoples R China

[2] SBSM, Key Lab Surveying & Mapping Technol Isl & Reef, Qingdao, Peoples R China

[3] State Ocean Adm, Key Lab Submarine Geosci, Hangzhou, Zhejiang, Peoples R China

来源：

MARINE GEODESY | 2011年 / 34卷 / 02期

关键词：

Underwater; static; object; positioning; sound speed profile; DEFORMATION MEASUREMENTS; ACOUSTIC MEASUREMENTS; SEA; GPS; SYSTEM; OCEAN;

D O I：

10.1080/01490419.2010.518501

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

A new method of positioning underwater static objects is presented based on Global Positioning System (GPS) acoustics. It adopts a model in which the ranging errors follow a quadratic relation with the travel time of acoustic signals. A least squares technique is used to estimate the effective sound speed. The precise location of an object can then be made. The simulation shows that the method is capable of determining the three-dimensional position with an accuracy of 5 cm in a water depth of 500 m. The operating time is respectively 5-10 minutes in 50-100 m depth and 20-30 minutes in 500 m depth.

引用

页码：138 / 151

页数：14

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