高超声速飞行器鲁棒自适应控制律设计

针对具有强耦合特性与模型不确定性特点的高超声速飞行器控制问题，提出了一种新的鲁棒自适应控制律设计方法。首先，结合高超声速飞行器数学模型，在引入参考模型的基础上，建立了一种具有非匹配特性的耦合控制模型。然后，基于该非线性模型，结合Riccati方程，通过动态调节参数的方法，得到了一种鲁棒自适应控制律。最后，对该控制算法的有效性进行了仿真验证。仿真结果表明：此算法在气动参数摄动与干扰同时存在的情形下，可以满足高超声速飞行器的稳定飞行要求。

A Study on Robust Adaptive Controll Method for Hypersonic Vehicle

A new kind of robust adaptive controll method is proposed for hypersonic vehicle with strong coupled characteristics and modeling uncertainties. Firstly, based on the founded dynamic model of hypersonic vehicle, the new coupling mathematical model with non matched characteristics by introducing expected reference model. Secondly, the robust adaptive control strategy is derived by dynamicall timely adjusting parameters and utilizing the solution of the Riccati equation. Finally, an illustrative example is given to show the proposed control scheme can guarantee the stability of the hypersonic vehicle under the condition of large scale variation of model parameter perturbation and disturbance.