The design of attitude control law of exo-atmospheric interceptor based on invariant set and predictive control

The attitude regulation of exo-atmospheric interceptor can be realized via pulsed attitude-control thrusters for the lack of aerodynamics in an exo-atmospheric environment. The pulsed thruster can only generate constant force, considering of constraint on control input is required in the design of On-Off attitude control law. Firstly, the optimization problem of predictive control for system with On-Off control input is given. Based on this, the dual-mode predictive control is proposed. Then construction method of robust control invariant sets and design method of local control law are proposed in order to guarantee the stability of systems. Lastly, the proposed method is applied to design of attitude control of exo-atmospheric interceptor, the numerical simulation demonstrates the effectiveness of proposed method.