Construction of ground control points for spacecraft using optimization-simulation model

Abstract

The article deals with the application of simulation modeling and optimization-simulation approach to solving problems of synthesis of structures of automated spacecraft control systems, namely, the choice of spacecraft control points, which are multifunctional aggregates of stationary and mobile elements dispersed in space with developed technical means of receiving, transmitting and processing information. Various approaches to the joint use of optimization and simulation models in the synthesis of the structure of complex systems are analyzed. The main attention is paid to the possibility of joint use in the synthesis of optimization and simulation models, their rational interaction in optimization and simulation procedures that describe both the composition and interrelationships of the structural elements of the system, as well as dynamic and stochastic aspects of their functioning. An optimization-simulation approach based on the joint use of optimization and simulation models in the process of searching for optimal structure options is proposed. Rational mapping of a set of interrelated functions performed by a control system into a set of interconnected nodes with appropriate technical means, taking into account the costs of creating or reconstructing the system, the costs of operation and operation, the requirements of operational efficiency of management, the reliability of technical means, the survivability and globality of the control system and other characteristics. Consideration of the problem of optimizing the distribution of tasks included in the control loop by levels and control nodes of the system and determining a set of technical means that minimize the costs of equipping nodes with technical means and their operation when performing restrictions on efficiency, hardware reliability of performing control tasks, weight and energy consumption of on-board equipment, loading of nodes, etc.

Analysis of the influence of natural and climatic conditions in the Arctic and the Far North on the stability of air traffic

“…The study of problems and the development of technologies for the design of on-board satellite navigation systems for tracking aircraft all over the world, including in Russia, are given priority [6]. One of the approaches to the construction of the methodology should be considered the application of such an area of knowledge as the theory of information transmission over satellite communication channels.…”

“…One of the approaches to the construction of the methodology should be considered the application of such an area of knowledge as the theory of information transmission over satellite communication channels. Such foreign and domestic scientists as Antamoshkin O.A., Slepchenko P.M., Keistovich A.V., Keistovich A.A., Borsoev V.A., Pozhilenkov V.А., Aitmagambetov AZ, Yeryomin D.I., Saterov N.M., Zhaxygulova D.G., Kaliyeva R.A., and others [6][7][8]. The development and applicability of the theory of reliability of satellite data transmission systems were studied by such Russian and foreign scientists as Slepchenko A.P., Skrypnik O.N., Tolstikov A.S., Vychuzhanin V.B., Kalach G.G., Tkachev E. A., Dobrikov V.A., Bakholdin V.S., Sakhno I.V., Fateev V.F., Andreev A.G., Koverznev E.A., Badvan A.A., Nguen M.T., Joau A.F., Tei Z.U., Amro M.M., Le S.H., Din C.Z.…”

On the development of satellite geodetic networks using mobile monitoring and control stations

“…The following unified coordinate systems are established on the territory of Russia: the system of geodetic coordinates of 1995 (SK-95) -for use in the implementation of geodetic and cartographic work starting from July 1, 2002; geocentric coordinate system "Parameters of the Earth 1990" (PZ-90) -for use in geodetic support of orbital flights and solving navigation problems [10].…”

“…• Increasing the accuracy of coordinate transmission over distances over 1000 km by [10][11][12][13][14][15] times and the accuracy of the mutual position of adjacent points in the SGN by an average of 2-3 times;…”

The concept of architectural reliability of software for ensuring the functioning of request-free measuring stations

“…The development of the concept of architectural reliability of software included in the hardware and software complex of request-free measuring stations is an urgent task. This follows from the fact that currently in modern satellite navigation the principle of requestfree rangefinder measurements between navigation satellites and the consumer is actively used [1][2][3]. The implementation of this principle is that information about satellite coordinates is transmitted to the consumer as part of the navigation signal.…”