Adaptive synchronized control with 6 degrees of freedom and bounded input for satellite formation flight

An adaptive synchronized control scheme with 6 degrees of freedom(DOF) and bounded input is proposed for a satellite formation flight(SFF) to attenuate its disturbances. For the 6 DOF synchronized dynamic model of SFF with parameter uncertainties, we first design an adaptive synchronized controller in which the external disturbance is temporary ignored. Considering the existence of disturbance, we improve the controller to make the closed-loop system attenuates the disturbance with L-two-gain. Numerical simulations have been performed on the platform of MATLAB/Simulink. Results indicate that the proposed controller estimates the parameter uncertainties adaptively and attenuates the disturbance with L-two-gain, while keeping a good performance in the transient process.