Receding Horizon Guidance Laws with No Information on the Time-to-Go
Receding Horizon Guidance Laws with No Information on the Time-to-Go
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DOI：
10.2514/2.4518
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发表时间：
2000-03
影响因子：
2.6
通讯作者：
Ki Baek Kim;Myung-Joon Kim;W. Kwon
中科院分区：
文献类型：
--
作者：
Ki Baek Kim;Myung-Joon Kim;W. Kwon
本文提出了一种不利用剩余时间信息的改进型最优导引律。提出了一种基于滚动域策略和最优控制理论的滚动导引律。在存在任意目标机动和目标与导弹之间存在初始侧向脱靶率的情况下，所提出的RHG保证在适当选择的时间到拦截时间内，使导弹弹头引爆时的横向脱靶率小于给定值。通过三个仿真实例，说明了RHG对目标的拦截能力。在剩余时间不准确的情况下，将RHG的性能与最优制导时长进行了比较；当剩余时间准确时，将其与横向MD和导弹加速度进行比较。
In this paper a modie ed optimal guidance law is proposed that does not use information on the time-to-go. The proposed receding horizon guidance law (RHG) is based on the receding horizon strategy and optimal control theory. In the presence of arbitrary target maneuvers and an initial lateral miss distance (MD) rate between the target and the missile, the proposed RHG is shown to guarantee to keep the lateral MD less than the given value, within which the warhead of the missile is detonated, from the appropriately selected time to the intercept time. Through threesimulation examples theability oftheRHGto interceptthetarget isillustrated. The performanceof theRHGiscompared with theoptimalguidancelawin termsoftheterminal MDwhen thetime-to-goisinaccurate, and in terms of the lateral MD and the missile acceleration when the time-to-go is accurate.