摘要
针对多个拦截弹拦截单个大机动目标(如战术弹道导弹),提出了一种基于微分对策理论的多弹协同制导律。建立了多对一的平面追逃运动模型,分析了该模型下的弹目相对运动关系,设计了适用于所有对策参与者的线性二次型性能指标,避免了对非连续性能指标的处理。得出了理想条件下对策各方的闭环最优解,即拦截弹的最优协同拦截策略和目标的最优逃逸策略。仿真结果表明了所提方法的有效性。
To intercept a highly maneuvering target such as TBM cooperatively by multi-missile,a cooperative guidance law was proposed,based on differential games theory. A planar pursuit-evasion model which includes multi-pursuer and one evader was established,and the relative kinematic relation between the pursuers and the evader was analyzed,then a linear quadratic cost function that is suitable for all of the players was designed,so as to avoid dealing with non-continuous cost functions. Ideal dynamic cases were assumed,closed-form cooperative differential game guidance strategies,i. e. optimal pursuit strategies for the missiles and optimal evasion strategy for the target,were obtained under ideal dynamic case of the players. Two-dimensional simulation results were used to validate the guidance law proposed. It is shown that the requirement of maneuverability for the missiles is lowered obviously,compared with an existing method.
引文
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