输入受限乘波体飞行器无估计预设性能控制

针对输入受限的乘波体飞行器跟踪控制问题,提出了一种无估计的预设性能控制方法。首先,针对可能发生的执行器饱和问题,设计了一种新型抗饱和补偿系统。然后,利用补偿系统状态构造新的预设性能转换误差,基于预设性能控制与反演控制的方法,为速度子系统与高度子系统设计了无需估计的低复杂度控制器。该设计方法的优越性在于无需状态估计与神经逼近,显著降低了控制的复杂度与计算量。基于Lyapunov稳定理论证明了所有转换误差与跟踪误差最终一致有界。最后,通过数值仿真验证了所提方法的有效性。

Estimation-Free Prescribed Performance Control for Input-Constrained Waverider Vehicles

In view of tracking control problem of input-constrained waverider vehicles,an estimation-free prescribed performance control scheme is proposed. Firstly, a new anti-saturation compensation system is designed to address the possible problem of actuator saturation. Then, the states of the compensation system are used to construct new prescribed performance transformed errors, and the controller is designed directly using the constructed new prescribed performance transformed errors based on the prescribed performance control and backstepping control methods. Then, a new prescribed performance transition error is constructed using the compensated system state, and low-complexity controllers without estimation are designed for the velocity subsystem and the altitude subsystem based on the method of prescribed performance control and backstepping control. The superiority of this method is that it eliminates the need for state estimation and neural approximation, which significantly reduces the complexity and computation of the control. Based on Lyapunov stability theory,it was proved that all transformed errors and tracking errors of the system are ultimately uniformly bounded. Finally,the effectiveness of the provided method are validated via numerical simulation.