Method to Obtain Target Speed with Underwater Acoustic Positioning System

There has been considerable recent interest in the positioning of autonomous underwater vehicles (AUVs). Underwater acoustic positioning system (UAPS) are usually used to determine position and speed of the moving target in water environment. Generally, moving target speed is estimated by derivative...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 1345; no. 3; pp. 32008 - 32013
Main Authors Lv, Chengcai, Shen, Binjian, Tian, Chuan, Xu, Dazhen, Song, Yuanjie, Luo, Peng
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.11.2019
Subjects
Acceleration
Acoustics
Autonomous underwater vehicles
Frequency shift
Linear equations
Moving targets
Physics
Underwater acoustics
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Summary:There has been considerable recent interest in the positioning of autonomous underwater vehicles (AUVs). Underwater acoustic positioning system (UAPS) are usually used to determine position and speed of the moving target in water environment. Generally, moving target speed is estimated by derivative of the target position with traditional method. However, this approach relies heavily on accuracy of positioning. Thus, this paper presents a novel method for estimation of target speed with the UAPS only, especially with long baseline (LBL) acoustic positioning system. The method is made by estimating the Doppler frequency shift of the received signals and solving the set of linear equations. It could depend less on positioning accuracy than the traditional method. What's more, it works well even though the moving target is subjected to acceleration or jerk. With simulations by MATLAB, it is shown that the method achieves very good performance.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1345/3/032008