Journal of Applied and Computational Mechanics

Design of an Adaptive-Neural Network Attitude Controller of a Satellite using Reaction Wheels

Document Type : Research Paper

Authors

1 Department of Mechanical Engineering, Amirkabir University of Technology, Tehran, Iran

2 Space Science and Technology Institute, Amirkabir University of Technology, Tehran, Iran

Abstract

In this paper, an adaptive attitude control algorithm is developed based on neural network for a satellite using four reaction wheels in a tetrahedron configuration. Then, an attitude control based on feedback linearization control is designed and uncertainties in the moment of inertia matrix and disturbances torque have been considered. In order to eliminate the effect of these uncertainties, a multilayer neural network with back-propagation law is designed. In this structure, the parameters of the moment of inertia matrix and external disturbances are estimated and used in feedback linearization control law. Finally, the performance of the designed attitude controller is investigated by several simulations.

Keywords

Main Subjects

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Journal of Applied and Computational Mechanics
Volume 1, Issue 2 - Serial Number 2
May 2015
Pages 67-73