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THAAD拦截弹是世界上少数能够进行能量管理控制机动的防空导弹之一。针对THAAD拦截弹先进的能量管理控制机动,从动力学模型、控制机制、运动学模型等方面提出了一套完整的方案。建立了非线性、强耦合、时变参数的大侧滑角弹体动力学模型,利用基于微分几何理论的反馈线性化技术将其解耦线性化,并设计了控制器实现姿态角的控制;建立了基于螺旋坐标系的运动学模型,并投影到地面坐标系来描述THAAD拦截弹的运动;最后通过六自由度仿真证明了该方案能够实现能量管理控制机动。
The THAAD interceptor is one of the few air defense missiles in the world capable of maneuvering energy management controls. Aiming at the advanced energy management and control maneuver of THAAD interceptor, a complete scheme is put forward from the aspects of dynamic model, control mechanism and kinematics model. The kinematics model of large-side-slip angle projectile with nonlinearity, strong coupling and time-varying parameters was established. The feedback linearization based on differential geometry theory was used to decouple the linearized projectile. The controller was designed to control the attitude angle. A kinematic model based on the spiral coordinate system was established and projected onto the ground coordinate system to describe the motion of the THAAD interceptor. Finally, six-degree-of-freedom simulation proved that this scheme can achieve energy management and control maneuvering.