Global finite-time attitude stabilization for spacecraft under velocity constraint

This paper mainly investigates the attitude control problem with angular velocity constraints for a spacecraft. First of all, a finite-time attitude controller with angular velocity constrains is proposed. Under the action of this controller, the quaternion attitude can be stabilized to the desired value and the angular velocity can be stabilized to the origin in a finite time. Secondly, in the simulation section, the effectiveness of the proposed controller is demonstrated.