METHOD FOR NAVIGATION SUPPORT OF DEEP-SEA AUTONOMOUS UNMANNED UNDERWATER VEHICLE Russian patent published in 2024 - IPC G01S15/00 B63G8/00 

FIELD: navigation.

SUBSTANCE: invention relates to techniques for creating navigation and control means for autonomous underwater vehicles (AUV). Three stationary bottom hydroacoustic beacons (BB) are installed at the bottom at a distance from each other in the form of a triangle. Their geographic coordinates are simultaneously determined by means of hydroacoustic communication broadband LF transceiving means installed on the BB and the support ship (SS) using a navigation hydroacoustic antenna. Signals are transmitted to the BB and response signals are received by a control station located on board the SS. Two or more AUVs are used, which move along parallel trajectories with the first, each AUV is equipped with a module of broadband LF transceiving means of hydroacoustic communication. First AUV is additionally equipped with a hydroacoustic communication module of medium frequency; the AUV, except for the first one, is additionally equipped with hydroacoustic communication modules with an ultrashort medium frequency base. Each AUV is observed with the help of a BB after the AUV dive. AUVs perform movement along parallel trajectories, the first AUV performs periodic observation with the help of BB.

EFFECT: higher efficiency of AUV, accuracy of AUV observation.

1 cl, 2 dwg