Ilnytskyi, АnatoliyTsukanov, Oleg2023-04-032023-04-032022Ilnytskyi, A. Static and dynamic assessments of information signs in recognition of sources and objects of observation in the process of radio monitoring / Anatoliy I. Ilnytskyi, Oleg F. Tsukanov // Information and telecommunication sciences : international research journal. – 2022. – Vol. 13, N. 2. – Pp. 72-78. – Bibliogr.: 8 ref.https://ela.kpi.ua/handle/123456789/54191Background. The current state and problems of the surveillance and radio monitoring systems of Ukraine require fundamentally new approaches to increasing their efficiency and the level of informatization. At the same time, the informatization of the radio monitoring system should be understood as the process of implementation and application in various areas of their activity of methods and means of collecting, transmitting, processing, saving and using information in order to increase the effectiveness of conducting radio monitoring and meet the needs of national security based on the formation and use of information resources. Objective. The purpose of the paper is to increase the effectiveness of radio monitoring by using the calculation of estimates of dynamic and static informational features when recognizing sources and objects of radio radiation and determining their phase (operational) state and level of possible danger. Methods. Recognition is based on the method of least squares by calculating the degree of "similarity" (similarity coefficient) of the recognized object with objects whose classes are known. Both the researched and reference objects are presented as a set of values of informational features of various nature, some of which are unchanged over the entire period of observation, that is, static, while others change dynamically. Results. The structure of the automated system of classification and recognition of surveillance objects and the recognition algorithm based on the calculation of static and dynamic information features and the similarity coefficient are proposed. Conclusions. A distinctive feature of deciding whether an object or a source of information belongs to one or another class feature is the calculation of the degree of "similarity" (similarity coefficient) of the recognized object to objects whose classes are known. To eliminate recognition errors associated with a violation of the synchronicity of measurements of the values of dynamic informational features of reference objects and objects to be recognized, a calculation is required taking into account possible time shifts.enradio monitoringрадіомоніторингmethodметодinformation featureінформаційна ознакаrecognitionрозпізнаванняclassificationкласифікаціяevaluationоцінкаalgorithmалгоритмsimilarity coefficientкоефіцієнт подобиArticlePp. 72-78https://doi.org/10.20535/2411-2976.22022.72-78681.610000-0001-5817-4917