Optimization of the structure of the security communication system of on-board and ground equipment of the integrated radio complex for recovery of ground targets
Authors: Dziuba Artem , Budaretskyi Yuryi , Petliuk Ivan , Horbatyi Ivan , Bondariev Andrii 
Published: December 2024

The basis of the offensive ground grouping of the armies of the militarily leading countries are highly maneuverable objects (launchers of tactical missiles, batteries, platoons, sections of self-propelled guns, rocket launchers and mortars, self-propelled installations of anti-aircraft guns and anti-aircraft guided missiles with an autonomous system guidance, helicopters on landing sites, defeating these objects is artillery. According to estimated data, artillery in the confrontation with Russia accounted for 70 to 80% of all losses suffered by the parties to the conflict.
The effectiveness of artillery fire depends on the total error of the shot, the number of guns involved in hitting the target, the rate of fire of artillery systems, the striking effect of ammunition and their number, the area of the target, the timeliness of its detection and opening fire on it. At the same time, the speed of detecting a highly maneuverable target and the accuracy of determining its coordinates play a key role in attacking the enemy with fire. Therefore, in the process of preparing data for firing and fire control, artillery reconnaissance means are of essential importance. The key tactical characteristics of artillery reconnaissance are maximum range and informativeness. The combination of these tasks consists in the integration of air and ground means of surveillance within the framework of a single automated radar complex for reconnaissance of firing positions and unmanned aerial vehicles (UAVs).
The exchange of information between the ground and air components of the complex, the transmission of data to the automated guidance and fire control system takes place through the interference-protected communication channels using signal repeaters placed on the UAV.
For the practical implementation of such complexes, new and improved known methods of signal generation and processing are proposed. The developed phase, clock and frame synchronization systems are based on the modernized scheme of the phase auto-frequency adjustment system, which makes it possible to reduce the time of entering into synchronization and increase the tracking band, significantly improve the quality of signal demodulation, and significantly increase the immunity of communication channels in the conditions of a complex interference environment.
The mathematical models developed in the work made it possible theoretically and experimentally, through simulation modeling on computer, without material costs to evaluate the effectiveness of using the proposed new and improved known methods of synthesis of hardware to ensure communication with the necessary reliability and reliability of information transmission.
Based on the results of simulation modeling, the structure of the radio channel using the relay of information signals and control commands, the structural diagrams of the transmitting and receiving devices, and the main technical characteristics of their constituent parts are determined. This made it possible to implement an experimental sample of the proposed system of interference-protected communication, to evaluate the achieved technical characteristics and to determine ways to improve them.