针对高超声速飞行器不确定模型,设计了一种基于跟踪微分器的反演控制器。引入跟踪微分器,在存在量测噪声的情况下,对弹道角和攻角进行有效重构。分别设计了基于动态逆的速度控制器和基于反演的高度控制器,并利用跟踪微分器解决了“项数膨胀”问题。为了保证控制器对模型参数摄动的强鲁棒性,设计了一种新型干扰观测器。仿真结果表明,所设计控制器鲁棒性强,并可提供良好的跟踪效果。

A backstepping controller was exploited for an uncertain hypersonic vehicle model. A tracking differentiator (TD) was employed to reconstruct states of flight-path angle and angle-of-attack in the presence of measurement noise. Then, a velocity controller was devised based on dynamic inversion and an altitude controller was explored using backstepping. Moreover, the TD was applied to handle the problem of "explosion of terms". In order to guarantee the controller's robustness against model parameter perturbation, a new disturbance observer was constructed. Simulation results show that the investigated controller exhibits strong robustness and can provide excellent tracking performance.