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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三维一体化制导与控制问题。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,推导出适用于倾斜转弯控制的一体化制导控制模型。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一种一体化制导控制律。通过选取适当的李雅普诺夫函数证明闭环系统状态的一致毕竟有界性。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。
In order to make full use of the coupling between the centroid motion and centripetal motion of the hypersonic vehicle in the subduction zone and the uncertainty during the flight, a three-dimensional integrated guidance and control problem based on the fuzzy disturbance observer is proposed. According to the dynamic equation of the aircraft and the aircraft-target relative motion equation of the gaze angle, an integrated guidance control model suitable for tilting control is derived. The fuzzy disturbance observer is used to compensate for the uncertainty in the model, and a piecewise dynamic surface method is used to design an integrated guidance control law. By selecting the appropriate Lyapunov function to prove the consistency of the closed-loop system state, after all, The simulation results verify the effectiveness and robustness of the integrated guidance control method.