带终端攻击角度约束的模糊滑模制导律研究

为了提高导弹的作战效能,取得最佳毁伤效果,除了要保证打击精度,也需要根据目标特性确定合适的攻击角度。针对超声速反舰导弹末段对目标实施大角度俯冲攻击的特点,建立了弹目相对运动数学模型,通过分析与推导,将多约束导引问题转化为控制问题,并应用模糊滑模变结构理论设计了纵向通道导引律。在目标静止和目标机动两种情况下开展了质点弹道仿真,仿真结果满足末段脱靶量和落地倾角要求,证明了该导引律的正确性和可行性。

Study on Fuzzy Sliding Mode Guidance Law with Terminal Angle Constraint

In order to enhance the effectiveness of damage while anti-ship missile hit against the target,hitting accuracy and impact angle are both very important.Considering the characteristics of supersonic anti-ship missile,the guidance law,which is restricted by large terminal attack angle is researched.Through analysis and derivation,the guidance problem is transformed into control problem,and a fuzzy sliding mode guidance law with large terminal attack angle constraint is proposed.And then the particle trajectory simulation is carried out in both stationary target and maneuvering target.Simulation result show the correctness and feasibility.