MATHEMATICAL МODELLING OF SELECTING INFORMATIVE FEATURES FOR ANALYZING THE LIFE CYCLE PROCESSES OF RADIO-ELECTRONIC MEANS
AbstractThe subject of the study are methods and models for extracting information about the processes of the life cycle of radio electronic means at the design, production and operation stages. The goal is to develop the fundamentals of the theory of holistic monitoring of the life cycle of radio electronic means at the stages of their design, production and operation, in particular the development of information models for monitoring life cycle indicators in the production of radio electronic means. The attainment of this goal is achieved by solving such problems: research and development of a methodology for solving the problems of selecting informative features characterizing the state of the life cycle of radio electronic means; choice of informative features characterizing the state of the life cycle processes of radio electronic means; identification of the state of the life cycle processes of radio electronic means. To solve these problems, general scientific methods were used: the main provisions of functional analysis, nonequilibrium thermodynamics, estimation and prediction of random processes, optimization methods, pattern recognition. The following results are obtained. Methods for solving the problems of selecting informative features for monitoring the life cycle of radioelectronic facilities are developed by classifying the states of radioelectronic means and the processes of LC in the space of characteristics, each of which has a certain significance, which allowed finding a complex criterion and formalizing the selection procedures. When the number of a priori data is insufficient for a correct classification, heuristic methods of selection according to the criteria for using basic prototypes and information priorities are proposed. Conclusions. The solution of the problem of mathematical modeling of the efficiency functions of the processes of the life cycle of radioelectronic facilities and the choice of informative features for monitoring the life cycle of radio electronic means is presented, by classifying the states of radioelectronic means and life cycle processes in the space of characteristics, each of which has a certain significance, which allowed finding a complex criterion and formalize the selection procedure. The solution of the task of identifying the life cycle of radio electronic means involves the creation of rules that determine the state of radio electronic means. The cases of insufficient for a correct classification of the number of a priori data are considered, approximate methods of selection according to criteria for using basic prototypes and information priorities are proposed. The application of a function for dividing sets in parameter space and formulating rules that regulate the correspondence between sets of parameters and values of performance indicators makes it possible to provide identification of states in the process of monitoring the life cycle of radio electronic means.
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