METHODS FOR ASSESSING INFORMATION SECURITY IN COMMUNICATION NETWORKS
DOI:
https://doi.org/10.28925/2663-4023.2025.28.812Keywords:
radio emission source, signal detection, electromagnetic accessibility, detection probability, ultrashort transmissions, radio control, interference immunityAbstract
The article considers methods for evaluating the parameters of detecting signals of means of covert information acquisition, in particular sources of radio radiation. Calculation expressions are given for determining the average time of detection of a source of radio radiation and the probability of its disclosure during the permissible observation time. Special attention is paid to assessing the efficiency of detecting ultrashort transmissions, which are characterized by small time intervals of radiation. For this purpose, a sequence of calculations is proposed, which includes the analysis of electromagnetic accessibility, determination of the signal power at the receiver input, taking into account interference and noise, as well as calculating the probability of frequency-time contact of the detection complex with the radiation source. The main factors affecting the detection efficiency are considered: radiation duration, frequency range, technical characteristics of the receiving equipment, radio wave propagation conditions and interference conditions. An approach is proposed to determine the required sensitivity of radio control means to ensure a given probability of detection. Recommendations are also given for optimizing the parameters of the detection system in case of failure to meet the conditions of electromagnetic accessibility. The methodology can be used in the design of radio control complexes, as well as for the analysis of their effectiveness in real operating conditions. The results obtained allow to increase the accuracy of the assessment of the capabilities of systems for detecting radio radiation sources and to ensure effective counteraction to technical channels of information leakage.
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Copyright (c) 2025 Тетяна Лаптєва, Олександр Лаптєв, Микола Браіловський
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