Attitudes decoupling control and disturbance compensation of the hypersonic vehicle

摘要

For the nonlinear coupling control problem induced by the maneuver flying with high angle of attack of the hypersonic vehicle, the dynamic inversion is used to realize the decoupling of the attack angle and bank angle dynamics. For the model uncertainty, parameter perturbation and outer disturbance, the estimation and compensation of the disturbance moments is carried out by the extended state observer. The second order dynamics is developed for the controller outer loop to achieve the expected transitions with dynamic performance constraints. The simulation shows the feasibility of the method, which can maintain the command tracing quality of the attitude control system with deviation and disturbance.