吸气式高超声速飞行器特征模型自适应控制

针对吸气式高超声速飞行器纵向刚体动力学的跟踪控制问题，给出了基于特征模型的自适应控制方案。通过选取攻角作为额外的输出，给出了这类系统的特征建模方法，其中，系统被分为速度子系统和高度子系统。针对速度子系统，建立了一阶特征模型；针对高度子系统，建立了二阶多输入多输出特征模型。基于所得到的特征模型，本文设计了全系数自适应控制律，不仅实现了速度跟踪和高度跟踪，也实现了攻角跟踪。数值仿真验证了该方法的有效性。

Characteristic Model Based Adaptive Control for Air Breathing Hypersonic Vehicles

This paper investigates the characteristic model-based adaptive tracking problem for the longitudinal rigid dynamics of the air-breathing hypersonic vehicles. By selecting the angle of attack (AOA) as an additional output, a detailed characteristic modeling approach is proposed where the system is divided into two subsystems: the velocity subsystem and the altitude subsystem. For the former, a first order characteristic model is derived; for the latter, a second order multi-input multi-output (MIMO) characteristic model is derived. Based on the derived characteristic models, an all-coefficient adaptive control law is proposed, which can not only ensure the tracking of the velocity and the altitude, but also guarantee the tracking of the AOA. Numerical simulations test the effectiveness of the approach proposed.