基于模糊干扰观测器的高超声速飞行器一体化制导控制方法

为充分利用高超声速飞行器在俯冲段的质心运动与绕质心运动之间的耦合作用和飞行过程中的不确定性，基于模糊干扰观测器提出了三维一体化制导与控制问题。首先根据飞行器的动力学方程以及飞行器-目标的视线角相对运动方程，推导出来适用于倾斜转弯控制的一体化制导控制模型。接着，针对模型中的不确定性采用模糊干扰观测器进行补偿，并使用块动态面方法设计了一种一体化制导控制律。然后，通过选取适当的李雅普诺夫函数证明了闭环系统状态的一致毕竟有界性。最后，仿真结果验证了该一体化制导控制方法的有效性和鲁棒性。

Integrated guidance and control of a hypersonic vehicle based on fuzzy disturbance observer

A three-dimensional integrated guidance and control(IGC) approach based on fuzzy disturbance observer(FDO) is proposed to take advantage of the coupling between the centroid motion and the attitude motion and of the uncertainty of the vehicle in dive phase. An IGC model that can be applied to bank-to-turn control strategy is proposed according to the dynamic equations of the vehicle and the line-of-sight(LOS) relative motion between the vehicle and the target. The uncertainty in the model is compensated, and then an IGC approach is developed by using the block dynamic surface backstepping control method. The states of the closed-loop system are proved to be uniformly ultimate bounded by adopting proper Lyapnove function. Simulations show that the IGC method is robust to the uncertanty and satisfies the required performance.