Abstract
The article considers options for the formation of radio electronic systems for detecting UAVs using radar, optoelectronic, thermal imaging and acoustic systems with specified values of performance indicators in their autonomous use. The results of comparing the effectiveness of eight variants of the formation of electronic systems for detecting UAVs of the Lancet, Shahed-136, and Cube types are shown. In these variants, two electronic complexes are considered, which provide for the combination of 3 systems, and 6 electronic complexes, which provide for the combination of two systems. To evaluate the effectiveness of the radio electronic complex for detecting unmanned aerial vehicles of each type, the indicator "probability of UAV detection" is used. The fact of UAV detection is recorded in three variants of partial task completion. The first embodiment of the partial solution of the task takes into account unmanned aerial vehicles detected by three systems. The second embodiment of the task takes into account unmanned aerial vehicles detected by any two of the three systems. The third variant of the partial solution of the task takes into account unmanned aerial vehicles detected by any one system out of three. To determine the performance indicator, a discrete-continuous stochastic model of the operational functional behavior of an electronic complex consisting of radar, optoelectronic or thermal imaging and acoustic systems with a given algorithm for its functioning is proposed. The development of a probabilistic graph of states and transitions is shown, on the basis of which a stochastic model of the operational functional behavior of the UAV detection electronic complex is formed in the form of a system of Kolmogorov-Chopman differential equations. The degree of adequacy of the proposed discrete-continuous stochastic model of the operational functional behavior of the electronic complex is determined by taking into account the performance indicators of the systems that are part of it. As indicators of system efficiency, we used "the probability of detecting a UAV by the system of the electronic complex when the UAV is in the area controlled by this system" and "the average values of the time intervals from the moment of UAV appearance in the controlled area until the moment of its detection by the corresponding system". To evaluate the increase in the efficiency of the created UAV detection electronic systems, an indicator is used in the form of the ratio of the probability of non-detection of UAVs by one system when it is used autonomously and the probability of non-detection of UAVs by the created electronic system.
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