Research on notch optimization active disturbance rejection passive elastic control method for hypersonic flexible vehicle

For the hypersonic flexible vehicle, the measurement information includes both rigid body motion information and elastic motion information due to the existence of elastic effect. At the same time, due to the existence of large parameter uncertainty and external interference, it brings great challenges to the control system design of the flexible vehicle. To solve this problem, this paper proposes a passive elastic control method which combines notch optimization based on adaptive cuckoo optimization method and active disturbance rejection control. By adding a structural filter in the feedback channel to weaken the elastic signal entering the control system, the unmodeling dynamics are observed and compensated based on the linear observer in the active disturbance rejection control, and the effectiveness and robustness of the control method are verified by mathematical simulation.