Purpose. To ensure stable operation of the navigation system of an unmanned aerial vehicle (UAV) when performing missions, in particular combat, in the absence of signals from navigation satellites or under the influence of spoofing attacks, using alternative sources of information.
Specifications. Processor clock frequency 1.1-3.4 GHz; RAM capacity 8GB; Built-in memory capacity is 64GB. The coprocessor contains a satellite navigation system receiver, an accelerometer, a gyroscope, a magnetometer for determining orientation, a pressure sensor for calculating altitude and temperature, and a PWM generator for controlling servomotors. Characteristics of the navigation and flight complex: frame processing speed 2.172 l/s; speed of issuing control commands: 4.251 com./s.
Application area. Production of instruments and equipment for measurement, research and navigation; 72.1 Research and experimental developments in the field of natural and technical sciences.
Advantages. The navigation and flight control system provides the ability to perform a flight in a fully automatic mode when global navigation satellite system data is not available or does not provide the required positioning accuracy (for example, during “spoofing” attacks). Technology algorithms make it possible to increase the accuracy of determining the coordinates of one’s own location (the determination error is up to 2 meters under normal conditions and up to 10 meters under unfavorable conditions) and the efficiency of using aircraft control elements, which increases energy efficiency and flight safety.
Technical and economic effect. In terms of performance (frame processing and issuing control commands), the developed technology has an advantage of 8.2% and 8.4%, respectively, compared to foreign analogues. The use of a navigation and flight complex reduces the overload of aircraft to 12.5% when approaching critical flight conditions. The combination of software and hardware allows for more efficient use of the central processor and RAM (reduction in load by 7.3% and 6.9%, respectively).
Description. The UAV autopilot is implemented by integrated avionics using a single computing platform. The UAV flight control is carried out using the developed subsystems of intelligent automatic motion control and autonomous navigation of the UAV. The developed UAV navigation and flight complex provides: high accuracy of working out the command values of the UAV position and orientation parameters in space at all stages of the flight; flying in the absence of information from global satellite navigation systems; identifying attempts to interfere with the operation of the navigation system; increasing control accuracy and stabilizing UAVs under the influence of external disturbances.