Application of Differential Mode for AUV Location
Abstract
Introduction: Signals from satellite radio navigation systems cannot penetrate seawater. Therefore, autonomous underwater vehicles are located with the use of one or more support objects. Because of the layered nature of a marine environment, a sound beam goes not in a straight line as radio signals do, but along an arcuate trajectory. Therefore, the correction of the vehicle location by the differential method has a large error. Purpose: Assessing the requirements and conditions necessary for using the differential mode of correcting a vehicle location. Results: We have simulated the propagation of sound beams in a vertical plane according to Snell’s law, under the condition that sound beam propagation follows the Rice distribution. We have determined the distance covered by a sound beam, evaluated its dependence on the emission direction, specified the procedure of locating a vehicle with the use of the differential mode for correcting the location, and formulated the conditions for using the differential method which are determined by the sound emission direction, by the sound speed profile and by the mutual position of the emitting buoys, the correcting base station and the underwater vehicle. Practical relevance: The obtained results can be used for locating vehicles in areas where you cannot use the traditional methods of precise location.Published
2018-08-23
How to Cite
Martynova, L., Bezruk, G., & Myslivyi, A. (2018). Application of Differential Mode for AUV Location. Information and Control Systems, (4), 15-23. https://doi.org/10.31799/1684-8853-2018-4-15-23
Issue
Section
Information and control systems