论文部分内容阅读
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。
Aiming at the uncertain model of hypersonic vehicle, a tracking controller based on tracking differentiator is designed. The tracking differentiator is introduced to effectively reconstruct the ballistic and attack angles in the presence of measurement noise. The velocity controller based on dynamic inverse and the height controller based on inversion are respectively designed, and the problem of “number expansion” is solved by tracking differentiator. In order to ensure the strong robustness of the controller to the perturbation of the model parameters, a new disturbance observer is designed. Simulation results show that the designed controller is robust and can provide good tracking results.