反舰导弹最优滑模制导律仿真研究

针对传统比例导引法攻击机动目标的不足,建立了三维空间中反舰导弹和目标的相对运动模型,在研究反舰导弹攻击非机动目标的最优制导律基础上,利用俯仰和偏航两个平面相叠加的方法,结合滑模控制理论设计了工程上易于实现的三维模型下的反舰导弹最优滑模制导律。仿真结果表明,给出的导引律在攻击机动目标时制导精度高、脱靶量小,导引控制过程具有良好的动态性,性能明显优于传统的比例导引律。

Simulation Research on Optimal Sliding-Mode Guidance Law for an Anti-Ship Missile

To overcome the shortages of the traditional proportional guidance in attacking maneuvering targets,the paper firstly established the relative motion models for the anti-ship missile and the target in three dimensions,then based on the optimal guidance law for aiming at non maneuvering targets and the sliding-mode control theory,the optimal sliding-mode guidance law in three dimensions,which was more easily-accomplished in engineering,was derived by making the pitch plane and yaw plane superposition.Simulation studies show that the proposed law in this paper has better guidance accuracy and better dynamic property during pursuit-control processing and it is superior to proportional navigation.