Удосконалення системи охорони військових об'єктів шляхом розробки засобів радіоелектронної боротьби для протидії БПЛА

Analysis of recent military conflicts shows the intensive development and use of information exchange systems. An important role in this system is played by unmanned aerial vehicles (UAVs). Unmanned aerial vehicles are often a source of primary information for various fire forces, are widely used to adjust the means of fire damage, allows you to ensure the management and operational interaction of all resources. Combat experience in the use of UAVs, primarily the United States and Russia, has shown the high effectiveness of these means of reconnaissance. For this reason, in the anti-terrorist operation zone, the Armed Forces of Ukraine (AFU) faced the widespread use of UAVs by illegal military formations (ILF). Since the beginning of Operation Allied Forces, there have been 4 major fires in missile and artillery depots: 2015 - the town of Svatovo; 2017 - the town of Balakleya, the village of Kalynivka; 2018 - the village of Ichnia. One of the main versions of fires is sabotage using UAVs. Bringing a large number of systems of protection of military facilities to modern requirements (including the installation of industrial means of electronic warfare to counter UAVs) requires the involvement of low-volume funding. Therefore, to improve the system of protection of military facilities (especially artillery depots) from the strike actions of UAVs (especially those that are in free sale), it is proposed to use a low-power jammer to suppress the control channel. As a result of calculations with different frequency bands of the control channel at a distance of 50 meters from the UAV and 200 meters from the control panel, we concluded that the suppression zone meets the requirements for protection of the entire perimeter of artillery depots, so it is advisable to use such a device military facilities. In this paper, it is proposed to use a noise generator with a power of 5 W and place them around the perimeter of the warehouses, according to the graphs of the zone of reliable reception on the distance between the noise station and the unmanned aerial vehicle control panel. The analysis of the graph shows that noise generators with a power of less than 5 watts should not be used because they will require more noise generators on the same perimeter of the protected warehouse and in some cases, the suppression zone is too small. According to the calculations, the schematic diagram of a 5-channel interference suppressor for counteracting UAVs with a radiation power of 5 W, the cost of which is much cheaper than industrial analogues, is proposed.