Design of RBV's reentry gain scheduling based on linearly dependent coefficients

Aiming at the design of control system in the reentry process of reusable boosted vehicle(RBV), a new quantity quota was proposed to choose the scheduling variables. The parameters of controller at some specific characteristic points were designed according to the pole assignment and the nonlinear direct optimization theory. The linearly dependency direct proportion to the control ability was testified through optimization iteration mechanism and scheduling strategy. According to the linearly dependency, the gain scheduling control system was designed to integrate several controllers to control the reentry process. The simulation results show that the strategy is effective, and the entire control system can meet the control requirements considerably.