AUTONOMOUS LASER COORDINATE DETERMINING SYSTEM OF UAV WITHOUT USE OF GPS/GLONASS MODULES Russian patent published in 2020 - IPC G08G5/04 

FIELD: communication equipment.

SUBSTANCE: present invention relates to optical communication and location complexes configured to neutralize attack vectors on an unmanned aerial vehicle (UAV) over radio communication and control channels. Autonomous system for the laser coordinate determination unmanned aircraft comprising a ground navigation station (GNS) and UAV. GNS comprises a computer, a time-to-digital converter, a platform control device with a built-in analogue-to-digital converter, step motors, mechanical rotary system, slow photodiode with built-in amplifier, fast photodiode, amplifier, laser transmitter, NOT element, comparator. Unmanned aircraft comprises emergency control unit with corner reflector. Said computer is connected to time-to-digital converter and rotary platforms control device, which, through step motors connected to it, controls mechanical platform of mechanical rotary system. Laser pulses generated by the laser transmitter are transmitted through the optical system to the angle reflector and reflected from it, are recorded by fast and slow photodiodes, where the signal from the fast photodiode through the comparator, the NOT element and the time-to-digital converter is transmitted to the said computer. Signal coming from slow photodiode via built-in ADC of rotary platforms control device is also supplied to computer, wherein said computer controls laser coordinate determination system.

EFFECT: technical problem of the proposed invention is providing UAV with an optical communication channel which is weakly susceptible to radioelectronic interference.

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