Coordinated attitude control of spacecraft formation

In this paper we consider coordinated control problem of a spacecraft formation consisting of two spacecrafts. Two sliding control schemes are designed to guarantee attitude tracking and synchronization of formation spacecrafts under uncertainty in spacecraft inertia parameters and external disturbance. The second adaptive sliding mode tracking control scheme can also implement real-time identification of inertia parameters. Global asymptotical stability of the spacecraft of formation is proven mathematically. Finally, simulations are performed and simulation results demonstrate the proposed control scheme is effective and feasible.