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针对高超声速飞行器的飞行控制问题,提出了一种基于有限时间控制技术的控制方法.根据高超声速飞行器纵向模型的特点,将高度控制和速度控制看作2个子系统分别设计控制器.采用非线性动态逆与有限时间控制技术相结合的方法,分别设计了速度控制器和高度控制器.速度控制器设计时考虑了发动机的动态,使得飞行速度在有限时间内收敛到给定值.飞行高度控制中,首先针对航迹倾角设计有限时间控制器,使得航迹倾角在有限时间内收敛到给定值,然后根据航迹倾角和飞行高度一一对应的关系,使得飞行高度快速收敛到给定值.仿真结果表明,所提出的控制方法是有效的.
Aiming at the flight control problem of hypersonic vehicle, a control method based on finite time control technology is proposed. According to the characteristics of hypersonic longitudinal vehicle model, height control and speed control are taken as two subsystems to design the controller respectively. Dynamic inverse and finite time control technology, the speed controller and the height controller are designed respectively.The design of the speed controller takes into account the dynamics of the engine, so that the flight speed converges to a given value within a limited time.Flight Level Control , A finite-time controller is designed for the track inclination first, so that the track inclination converges to a given value within a limited time, and then the flight altitude converges quickly to a given value according to the one-to-one correspondence between the track inclination and the flight altitude The simulation results show that the proposed control method is effective.