针对三维空间机动目标的预定时间收敛制导律
A Novel 3D Predefined-Time Convergence Guidance Law Against Maneuvering Targets
单程军 1朱聪 1龙垚松 1欧朝 2胡奕 3成忠涛1
作者信息
- 1. 华中科技大学航空航天学院,武汉 430074
- 2. 华中科技大学航空航天学院,武汉 430074;中国空气动力研究与发展中心,绵阳 621000
- 3. 武汉高德红外导研院,武汉 430074
- 折叠
摘要
提出了预定时间视线角(LOS)速率收敛制导律,用于三维场景中的多种交战情况.通过使用这种制导律,视线角速率会在任意预先指定的时间内收敛到0,且收敛时间与初始条件和控制参数无关.此外,收敛时间存在一个确切上界.首先,通过解耦三维(3D)交战模型,设计了一个平面制导律,提出了在二维(2D)场景中的制导指令.然后,通过理论分析证明了制导指令在三维场景中的可行性.最后,仿真验证了制导律的有效性.
Abstract
In this paper,a novel predeffined-time line of sight(LOS)angle rate convergence guidance law is proposed for the diverse engagements in three-dimensional(3D)scenarios.By using this guidance law,the LOS angle rate can be converged to zero in an arbitrarily prespecified time,which is independent of the initial conditions and control parameters.Besides,there exists an exact upper bound of the convergence time.Firstly,a planar guidance law is designed to introduce guidance commands in two-dimensional(2D)scenarios by decoupling the 3D engagement model.Then,the guidance commands can be functional in 3D scenarios by the theoretical analysis.Finally,simulations are implemented to validate the guidance law and show the effectiveness of proposed method.
关键词
导弹制导/三维场景/视线角速率/机动目标/预定时间收敛Key words
Missile guidance/3D scenarios/LOS angle rate/Maneuvering target/Predefined-time con-vergence引用本文复制引用
出版年
2024
NETL
NSTL
万方数据