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研究采用姿控式直接侧向力/气动力复合控制方式的大气层内拦截弹的过载跟踪控制器设计问题。舵系统和导弹运动都可以视作连续量,由脉冲发动机提供的直接侧向力可以视作离散控制量,因此基于混合控制的概念,当舵系统的控制器设计完毕后,整个系统就可以视作采样控制系统,从而可以采用采样系统的方法进行系统分析和设计。采用采样系统的H∞混合灵敏度方法设计直接侧向力的离散控制器,以快速建立攻角来跟踪过载指令。数值仿真验证了设计方法的有效性。
This paper studies the design of overload tracking controller for the intercepting bomb in the atmosphere using attitude control direct lateral force / aerodynamic compound control. Both the rudder system and the missile movement can be regarded as continuous quantities. The direct lateral force provided by the pulse engine can be regarded as discrete control quantity. Therefore, based on the concept of hybrid control, when the controller of the rudder system is designed, the whole system can be regarded as For sampling control system, which can be used sampling system for system analysis and design. H ∞ mixed sensitivity method of sampling system is used to design the discrete controller of direct lateral force to quickly establish the angle of attack to track the overload command. Numerical simulation verifies the effectiveness of the design method.