An Alternative Approach to Improving Independence and Fault Tolerance of Solving the Problem of Determining Nanosatellite Attitude

The approach proposed in this paper is based on the idea of creating a knowledge database aboard a nanosatellite that allows the reconfiguration of onboard software in order to choose the most appropriate algorithm for attitude determination and change parameters of the algorithms used. The paper presents the results of the research concerned with the SamSat nanosatellite platform: analysis of performances and formation of requirements to the instrument errors of the sensors used in the attitude control system to ensure the required accuracy of the problem solution; structure of knowledge database; logic of the onboard computer operation in terms of the choice of the applied attitude determination problem solution algorithm; simulation results of realization of the given approach on the model problem.