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Aerospace Instrument-Making

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COMPARISON OF THE NUMERICAL METHODS FOR SATELLITE DYNAMICS SIMULATION
I.V. Lobachev, A.L. Maslennikov, S.N. Verenikin

Modern and prospective directions of cosmonautics development require the design and development of complex simulation systems. These systems should simulate the dynamics of spacecraft, their onboard systems, and physical measurements. For complex satellite systems, the number of simulated tasks increase signifi cantly. In this case it is become necessary to optimize the simulation process to ensure its functioning in real time or close to it. One of the directions of such optimization may be the choice of the most effective numerical method for solving the Cauchy problem when simulate the dynamics of spacecraft. The most effective method can be considered to provide suffi cient accuracy with a minimum number of calculations. In this paper, several well-known and less well-known numerical methods for solving the Cauchy problem are compared on the example of modeling the perturbed motion of the satellite.
Keywords: simulation, numerical methods, Yoshida method, Runge-Kutta method, leapfrog method, Adams methods, satellite.


DOI: 10.25791/aviakosmos.2.2022.1267

Pp. 38-47.

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