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根据高超声速飞行器的姿态动力学方程,给出一个可面向姿态角速度镇定的非线性设计模型。针对一类非线性系统,提出一种基于扩张状态观测器(ESO)的鲁棒动态逆设计方法,并将其应用于高超声速飞行器姿态角速度的渐近镇定中。仿真结果表明,相比传统的动态逆控制方案,本文所提出的控制方案可保证飞行器姿态角速度得到快速镇定,并且具备针对模型不确定和结构干扰力矩的强鲁棒性能。
According to the attitude dynamics equation of hypersonic vehicle, a nonlinear design model of attitude angular velocity stabilization is presented. For a class of nonlinear systems, a robust dynamic inverse design method based on Extended State Observer (ESO) is proposed and applied to asymptotic stabilization of attitude angular velocity of hypersonic vehicles. Simulation results show that compared with the traditional dynamic inverse control scheme, the control scheme proposed in this paper can ensure that the attitude angular velocity of the aircraft can be quickly stabilized and has strong robustness against model uncertainties and structural disturbance torque.