Conceptual aspects of developing a promising model of a special-purpose satellite communication system under the influence of electronic warfare means
V. Rudenko, M. Zinchenko, O. Yakovchuk, О. Plows · Communication informatization and cybersecurity systems and technologies · 2025
Based on the analysis of the effectiveness of the functioning of the main satellite communication subsystems ofthe Armed Forces of Ukraine during the repulsion of the armed aggression of the Russian Federation, the impact ofenemy electronic warfare on these systems, the directions of development of the military satellite communication systemfor the near and long term are determined. The article considers conceptual aspects of developing a new model of apromising satellite communication system for the Armed Forces of Ukraine, which is based on leasing streams(channels) or frequency-orbital resources from satellite communication operators. These special-purpose satellitecommunication systems must provide a high and stable signal level over Ukraine, the necessary quality, transmissionspeed, intelligence- and jamming-protected satellite communication using the latest information and communicationtechnologies. Particular attention is paid to the use of satellites in low Earth orbits, on-board signal processing, narrowbeams of on-board directional diagrams to counter enemy electronic warfare. Along with these methods for protectionagainst electronic jamming, adaptive antenna arrays are scientifically substantiated and proposed for use.The principle of operation of these antennas is characterized by its directivity diagram. Suppression of interference isachieved by controlling the positions of the zeros of the directivity diagram and reducing the level of side lobes in thedirection of the interference source. Adaptive antennas are also able to determine the direction of interference andreduce their impact in the absence of a priori information about the signal-interference situation.The proposed model of a promising satellite communication system for the Armed Forces of Ukraine willincrease transmission speed, resistance to enemy electronic warfare equipment, and reduce signal delay at variouslevels of command of the Armed Forces of Ukraine.Future development of the promising system model will involve the use of adaptive beamforming of the antennaarray based on SDR technology, which will allow for the formation of a narrower directivity pattern and provide accessto a larger number of users.