基于观测器的不确定再入飞行器模型的控制

摘要

Based on state observer,the control for a class of reentry vehicle model with uncertain invariant parameters is discussed by using the Lyapunov stability theory together with the LMI (linear matrix inequation) opproach.Firstly,the feasibility of the observer is verified.Then,an observer-based state feedback controller is designed,which guarantees the stability of the related systems.Finally,a numerical simulation for a reentry vehicle model is presented to illustrate the effectiveness of the new proposed design methods.%利用Lyapunov稳定性理论并结合LMI(linear matrix inequation)方法,基于状态观测器,研究了一类含有不确定时变参数的再入飞行器模型的控制问题.首先,验证了观测器的可行性.其次,基于观测器设计了状态反馈控制器,以保证系统的稳定性.最后,给出一个再入飞行器模型的实例仿真以验证新提出的方法的有效性.