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Документ Parametric synthesis of а non-stationary automatic control system of the course stability of the car(Національний технічний університет "Харківський політехнічний інститут", 2020) Aleksandrov, Eugene; Aleksandrova, T. Ye.; Kostianyk, Iryna; Yaroslav, MorgunWidely used in the practice of analysis and synthesis of automatic control systems of non-stationary dynamic systems, the method of “frozen coefficients” does not havea rigorous theoretical justification and does not always lead to the desired results. In this regard, to solve the problem of parametric synthesis of a non-stationary automatic control system of the course stability of the car, an algorithmic method is co nsidered for choosing the variable parameters of the regulators of non-stationary objects, based on the direct calculation of the additive integral quadratic quality functional that reflects the set of requirements for the automatic regulator of a non- stationary object, followed by finding the values of the variable parameters a regulator delivering a minimum of quality functional, and the required values of the weight coefficients of the additive functional.Документ Implementation of the arithmetic addition operation in the system of residual classes(Національний технічний університет "Харківський політехнічний інститут", 2020) Krasnobayev, V.; Koshman, S.; Kurchanov, V.The subject of the article is the development of a method for implementing the arithmetic operation of addition numbers that are represented in the system of residual classes (SRC). This method is based on the use of the principle of circular shift (PCS). The purpose of the article is to reduce the time it takes to implement the arithmetic operation of addition numbers that are represented in the SRC. Tasks: to analyze and identify the shortcomings of existing number systems that are used in the construction of computer systems and components, to explore possible ways to eliminate identified deficiencies, to evaluate the implementation time of the arithmetic addition operation based on the use of the developed method. Research methods: methods of analysis and synthesis of computer systems, number theory, coding theory in SRC. The following results are obtained. It is shown that the basic principle of the implementation of arithmetic operations in positional number systems is the use of binary adders. Moreover, the use of such number systems determines the presence of inter-bit connections, which in turn increases the time it takes to implement arithmetic operations, and also cause errors to occur. It is established that the use of a non-positional number system in residual classes allows us to eliminate these shortcomings, through the use of the basic properties of SRC. The peculiarity of the developed method is the result of the operation of adding numbers can be found by successive cyclic shifts of the bits of the contents of the data blocks by the corresponding SRC modules. The use of PCS allows eliminating the influence of inter-bit bonds between the residues of the processed numbers, which allows to reduce the implementation time of the operation of adding two numbers in the SRC. Conclusions. The results of the studies showed that the use of SRC allows to eliminate the existing shortcomings of positional number systems, and also improves the speed of implementation of arithmetic operations.