ON-BOARD SYSTEM OF UNMANNED AERIAL VEHICLE (UAV) WITH AUTONOMOUS CORRECTION OF COORDINATES Russian patent published in 2019 - IPC G01C21/02 

FIELD: aviation.

SUBSTANCE: invention relates to aircraft instrumentation and can be used to increase accuracy of navigation tasks, namely determination of coordinates in perspective navigation systems of unmanned aerial vehicles (UAV). For this purpose, in an aircraft navigation system with autonomous coordinate correction of an UAV comprising an inertial navigation system (INS), an on-board control system including an UAV coordinates evaluation unit and an INS correction calculation unit, radio navigation channel including a transceiving unit, distributed in-space radio beacons in the required water area of the sea or water surface, memory device (MD) of the bottom relief map, which is connected through a unit for calculating coordinates of radio buoys with a unit for estimating coordinates of the UAV. Radio buoys are made in the form of a system of hydroacoustic sensors connected to a unit for converting the amplitude of a hydroacoustic wave into a delay time signal, microprocessors comprising a storage device and a synchronization system, wherein the radio buoys coordinates calculating unit is a distributed relief-symmetric correlation-extremal navigation system. As a result, expansion of functional capabilities on the basis of formation of "asymmetric" sea force, based on advance placement in key areas of the World Ocean water area of the required number of round-the-clock air reconnaissance and target designation means with their operational activation by radio signal or program.

EFFECT: broader functional capabilities.

1 cl, 2 dwg