Anti-Saturation Attitude Tracking Control for Spacecraft with Flexible Performance

This paper is concerned with the anti-saturation attitude tracking control for spacecraft considering external disturbances. First, a relative attitude tracking error model for spacecraft is conducted. After that, a modified performance function is proposed based on the dual-constrains of a novel low pass filter. Stability analysis proves that the proposed controller can not only relax the prescribed performance boundaries on the transformed errors, but also ensure the uniformly ultimately boundedness of the other closed-loop signals. Finally, a set of numerical simulations are performed to validate that the proposed controller has an outperformance effect to satisfy the practical engineering requirements.