Experimental Testing of High-Accuracy Underwater Range-Finding Technology

The aim of the study whose results are discussed in this paper was to conduct experimental and numerical research on improving a high-accuracy method, developed by the authors, of positioning underwater objects. For this, experimental testing of an improved range-finding technology was carried out,...

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Bibliographic Details
Published in:Acoustical physics 2018-03, Vol.64 (2), p.190-195
Main Authors: Morgunov, Yu. N., Bezotvetnikh, V. V., Burenin, A. V., Voitenko, E. A., Golov, A. A.
Format: Article
Language:English
Subjects:
Accuracy
Acoustic velocity
Acoustics
Autonomous navigation
Hydrology
Navigation
Ocean Acoustics. Hydroacoustics
Physics
Physics and Astronomy
Rangefinding
Shelves
Underwater acoustics
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Summary:The aim of the study whose results are discussed in this paper was to conduct experimental and numerical research on improving a high-accuracy method, developed by the authors, of positioning underwater objects. For this, experimental testing of an improved range-finding technology was carried out, based on the inclusion into the measuring scheme of a block that can measure and monitor the sound velocity on the shelf area of a track connecting a source of navigation signals and an a receiver system imitator consisting of autonomous underwater apparatus. In addition, under natural conditions, we implemented a scenario in which range-finding data was provided to an autonomous underwater apparatus carrying out a mission in the water area at a distance of 300 km from the source of navigation signals using technical tools for controlling variability of the sound velocity on the shelf. A specific example was used to test the acoustic range-finding technology on a track with complex hydrological and bathymetric conditions, and an estimate was obtained for the accuracy of measuring distances during a 4 h drift of the autonomous underwater apparatus imitator.
ISSN:1063-7710
1562-6865
DOI:10.1134/S1063771018020124