Design of Robust Observer-Based Backstepping Control for a Satellite Control System

Abstract EN

This paper presents the attitude tracking of a class of satellite control systems under external disturbances.

Once the error dynamics of the satellite are obtained, a nonlinear transformation expresses them in a suitable representation for the design of a high-gain observer and backstepping control.

The observer-based backstepping controller is then designed to drive the angles of the satellite dynamics to their desired values in the presence of exogenous disturbances.

Closed-loop stability of the proposed controller is demonstrated via Lyapunov theory, and its effectiveness is confirmed through numerical simulations.