Double-loop coordinated decoupling and control for gliding hypersonic vehicles

Considering the complex flight dynamics characteristics, such as strong coupling and parameter uncertainty, we investigate a new control system design method combining double-loop control with coordinated decoupling control for gliding hypersonic vehicles. Firstly, the dynamic model for the gliding hypersonic vehicle is established, and the strong coupling features are analyzed. Then, a double-loop coordinated decoupling control system for the gliding hypersonic vehicle is designed by combining double-loop control with coordinated decoupling control, and a generic decoupling gain selection scheme is presented. Finally, nonlinear simulation works of the control system on fixed point, parameter deviating and whole trajectory are carried out, and the simulation results and their analysis show preliminarily that: (1) the designed control system can track attitude demands accurately; (2) the effectiveness of the control system design method is verified.