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arXiv · 2504.12124

Adaptive Controller For Simultaneous Spacecraft Attitude Tracking And Reaction Wheel Fault Detection

Camilo Riano-Rios·George Nehma·Madhur Tiwari
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Abstract

The attitude control of a spacecraft is integral to achieving mission success. However, failures in actuators such as reaction wheels are detrimental and can often lead to an early end of mission. We propose a Lyapunov-based adaptive controller that can estimate and compensate for reaction wheels degradation simultaneously. The controller incorporates an adaptive update control law with a gradient-based term and an integral concurrent learning term that collects input-output data for online estimation of uncertain parameters. The proposed controller guarantees attitude tracking and its performance is tested through numerical simulations.

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Camilo Riano-Rios, George Nehma, Madhur Tiwari. 2025-04-16. Adaptive Controller For Simultaneous Spacecraft Attitude Tracking And Reaction Wheel Fault Detection. https://doi.org/10.2514/1.a36424

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