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针对高超声速飞行器纵向模型的快时变、强耦合和高度非线性的特点,在考虑模型不确定性的情况下,采用李导数的方法对某型高超声速飞行器进行输入输出的精确线性化。基于线性化后的模型,提出一种非线性动态逆控制的方法,并对其稳定性进行分析,实现对该型高超声速飞行器的轨迹跟踪控制。并利用Matlab搭建仿真平台,仿真结果显示仿真平台的正确性和控制算法的有效性。
Considering the fast time-varying, strong coupling and highly nonlinear characteristics of the hypersonic longitudinal vehicle model, the linearization of the input and output of a hypersonic vehicle is derived by using the derivative of the derivative, taking into account the uncertainty of the model. Based on the linearized model, a nonlinear dynamic inverse control method is proposed, and its stability is analyzed to realize the trajectory tracking control of the hypersonic vehicle. And use Matlab to build a simulation platform, the simulation results show that the simulation platform is correct and the effectiveness of the control algorithm.