ИМИТАЦИОННОЕ МОДЕЛИРОВАНИЕ СПУТНИКОВОЙ СИСТЕМЫ СВЯЗИ С ИЗМЕНЯЕМОЙ ОРБИТАЛЬНОЙ СТРУКТУРОЙ

Abstract

Introduction. The article is a logical continuation of the authors' work on the study of the effectiveness of the inclusion of the space segment, in particular the satellite communication system, in the control loop of the aircraft. The satellite communication system allows you to provide a radio signal coverage of a given territory at any time. This can be both local and global coverage of the globe. Methods. However, it is necessary to find such a structure and parameters of the orbits of the grouping of the communication and data relay system as the main structural and functional element for transmitting control commands that will ensure the effective performance of the control and guidance tasks in flight at any time in any environment. In the article, expressions are obtained for calculating the radio visibility time of the studied objects during the movement of a mobile target, and an expression is derived for calculating the probability of bringing control information to the aircraft during its flight. The analysis of the main characteristics that determine the quality of object management is given. Due to the high complexity, and sometimes impossibility, of calculations and the stochastic nature of both the process itself and the influencing factors on the aircraft, the study suggests using the simulation method as a tool for calculating the quantitative characteristics of the objective function – the probability of delivering command and control information from the com& mand post via a satellite communication system to the means of delivery and defeat for the implementation of correction of the incoming trajectory and following the movement of the mobile target. The analysis and conclusion of the outcome modeling operators and the evaluation of the efficiency indicator are given. And also a look at the application of such a method of statistical tests as the Monte Carlo method in simulation modeling is given. The general relations for this method are given, its positive aspects and the essence of its application in the study of finding a variant of the strategy for using a satellite communication system are considered, as well as the justification of a suboptimal variant of the composition, structure and characteristics of the orbital grouping under study in relation to the specifics of the process of targeting a delivery vehicle and hitting a mobile target.