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Документ Method of assessment of the efficiency of the communication of operational troop grouping system(Національний технічний університет "Харківський політехнічний інститут", 2020) Shyshatskyi, A.; Suhak, S.; Tiurnikov, M.; Lyashenko, A.; Bokhno, T.; Bondar, O.; Melnyk, A.The most distinctive features of military communications systems are the high degree of a priori uncertainty about the operational situation and the small amount of source data for communications planning. In such circumstances, it is important to make the right decision-making appraisal apparatus, which will allow the officials of the system management bodies to be confident in the decisions made. Deciding to build a communications system at any level usually involves defining the purpose of its operation, selecting metrics and justifying the evaluation criteria, synthesizing alternative structures, and finding a rational option for deploying the communications system. The practice of the troops has convincingly shown that in the theory and practice of communications, there is a need to improve the scientific and methodological apparatus, which will meet the current conditions of operation of control systems and provide a more adequate assessment of the effectiveness of deployable communications systems. In this article, the authors propose a method for evaluating the effectiveness of the communication system of the operational troop grouping. The above method is based on the first time use of the communication system accessibility indicator. In the course of this research, the authors used the basic principles of communication theory, noise immunity theory and intelligence. The novelty of the proposed method is that the communication system operational troops grouping are estimated by generalized indicator of availability of channel resources and network communications system of the operational troops grouping. The practical value of the proposed methodology is that the methodology allows for a more accurate assessment of the communications system, the identification of deployment arrangements and measures to improve the effectiveness of the operational troops grouping.Документ Analysis of the known methods of channels communication control with the interference and selective fading(Національний технічний університет "Харківський політехнічний інститут", 2019) Zhyvotovskyi, Ruslan; Momit, Alexander; Onbinskyi, Yaroslav; Lyashenko, AnnaDesigning adaptive radio systems, depending on their purpose, solves the problem of optimizing one of the performance indicators with restrictions on others. In turn, the development and implementation of adaptive information sharing techniques require the establishment of effective procedures for monitoring and predicting the status of communication channels and the quality of information transmission. Given the rapid development of electronic warfare facilities, the expansion of the list of interferences that can be created by these complexes, it is great relevance for further scientific research on the creation of new methods of monitoring the status of the communication channel. In this research, the authors analyzed the characteristics of the main methods for assessing the status of communication channels. In the course of the analysis, the authors used general scientific methods of analysis and synthesis, the basic provisions of communication theory, data transfer theory, space-time coding theory, noise immunity theory, signal-code theory, etc. The authors of the article analysis of the known methods of estimating the state of the channel of multi-antenna communication systems showed that the known scientific articles do not contain the following: parallel estimation of the status of the channel by several indicators; obtaining a generalized channel status assessment; continuous evaluation of several characteristics in real-time; at the same time evaluate both the linesdown and the lines up; the combination of the impulse response of the channel state, the frequency response of the channel status, and the bit error probability is not used for the estimation. It is established that at present there is no universal methodof monitoring the status of channels of multi-antenna radio communication systems, which would give an accurate, fast estimate of the status of the channel in real-time, which would allow effective adaptation in a channel with non-stationary parameters.