METHOD FOR DETERMINING COORDINATES OF AUTONOMOUS UNMANNED SUPERDEEP SUBMERSIBLE APPARATUS AND HYDROACOUSTIC BOTTOM COMMUNICATION AND NAVIGATION STATION ON HYDROACOUSTIC CHANNEL Russian patent published in 2024 - IPC G01S5/18 

FIELD: underwater navigation means.

SUBSTANCE: invention relates to underwater navigation means, in particular to determination of location or for accurate coordinate referencing of autonomous unmanned underwater vehicles and other underwater equipment equipped with sources of hydroacoustic signals in deep ocean areas. Method of determining coordinates of an autonomous unmanned superdeep submersible vehicle and a hydroacoustic bottom station for communication and navigation via a hydroacoustic channel involves measuring the propagation time of an acoustic signal from the underwater object to hydroacoustic transponders of the navigation hydroacoustic system and back to determine the distance to the hydroacoustic transponders. Location of the underwater object is found as the point of intersection of spheres, the centres of which are located at the points of location of the hydroacoustic transponders, and the radii are equal to the inclined distances from the hydroacoustic transponders to the underwater object. Hydroacoustic transponders are placed on underwater gliders, which, in order to determine coordinates, periodically ascend to a positional position for data exchange with the control station using the satellite communication system, as well as for updating the location based on the space radio navigation system data.

EFFECT: accurate determination of coordinates of underwater objects without considerable time spent on deploying a hydroacoustic navigation system in a new position area.

1 cl, 1 dwg