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

作　　者：单程军 朱聪 龙垚松 欧朝 胡奕 成忠涛 SHAN Chengjun;ZHU Cong;LONG Yaosong;OU Chao;HU Yi;CHENG Zhongtao(School of Aerospace Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;China Aerodynamics Research and Development Center,Mianyang 621000,China;Wuhan Gaode Infrared Navigation Research Institute,Wuhan 430074,China)

机构地区：[1]华中科技大学航空航天学院,武汉430074 [2]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

出　　处：《航天控制》2024年第4期50-56,共7页Aerospace Control

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。In this paper,a novel predefined-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 

分 类 号：V11[航空宇航科学与技术—人机与环境工程]