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Underwater Navigation Ssystem Based on Doppler Shift – Measurements and Error Estimations

Abstract

A new acoustic navigation system was developed to determine the position and speed of moving underwater objects such as divers and underwater vehicles. The path of an object and its speed were determined by the Doppler shifts of acoustic signals emitted by a transmitter placed on the object and received by four hydrophones installed at the periphery of the monitored body of water. The position and speed measurements were affected by errors mainly caused by acoustic reflections (returns) from the water body boundaries and surface reverberations. This paper discusses the source of the disturbances with the results of a simulation test and experimental measurements. It was demonstrated that the magnitude of the errors could be acceptable in most of the potential applications of the acoustic navigation system.

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Category:
Articles
Type:
artykuły w czasopismach
Published in:
Polish Maritime Research no. 27, pages 180 - 187,
ISSN: 1233-2585
Language:
English
Publication year:
2020
Bibliographic description:
Ostrowski Z., Salamon R., Kochańska I., Marszal J.: Underwater Navigation Ssystem Based on Doppler Shift – Measurements and Error Estimations// Polish Maritime Research -Vol. 27,iss. 1 (105) (2020), s.180-187
DOI:
Digital Object Identifier (open in new tab) 10.2478/pomr-2020-0019
Bibliography: test
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Gdańsk University of Technology

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