摘要
针对带终端攻击角约束的三维拦截制导问题,提出了一种基于级联扩张状态观测器的自适应有限时间预设性能制导律。首先,建立了考虑终端攻击角约束的弹目三维相对运动模型;然后,设计了一种级联扩张状态观测器对目标机动造成的扰动进行了精确估计,同时构造了一种关于视线角误差的自适应有限时间预设性能函数,在此基础上,基于预设性能控制和扰动补偿的思想设计了自适应有限时间制导律,使视线角误差按预设性能收敛,并运用Lyapunov理论证明了闭环系统的有限时间稳定性;最后,在两种目标机动模式下进行了仿真对比,仿真结果表明,所提制导律能够在实现有效拦截的同时降低需用过载,且具有较高的鲁棒性。
Aiming at the three-dimensional interception guidance problem with the terminal impact angle constrained,an adaptive finite time prescribed performance guidance law based on cascaded extended state observer is proposed.Firstly,the three-dimensional relative motion model of missile and target is established considering the constraint of terminal impact angle.Then,a cascaded extended state observer is designed to accurately estimate the disturbance caused by the target maneuver,and an adaptive finite time prescribed performance function for the line-of-sight angle error is constructed.On this basis,an adaptive finite time guidance law is designed based on the idea of prescribed performance control and disturbance compensation,so that the line-of-sight angle error converges by the prescribed performance.The finite time stability of the closed loop system is proved by Lyapunov theorem.Finally,simulation comparison is conducted in two target maneuvering modes.The simulation results show that the proposed guidance law can achieve effective interception while reducing the required overload,and has high robustness.
作者
许炜平
廖宇新
王忠森
殷泽阳
张烨琛
XU Weiping;LIAO Yuxin;WANG Zhongsen;YIN Zeyang;ZHANG Yechen(School of Automation,Central South University,Changsha 410083,China;Research Institute of Aerospace Technology,Central South University,Changsha 410083,China;Science and Technology on Space Physics Laboratory,Beijing 100076,China)
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2023年第10期1593-1603,共11页
Journal of Astronautics
基金
国家自然科学基金青年基金项目(62003372,62103446)
装备预研教育部联合基金项目(8091B032134)
湖南省自然科学基金青年基金项目(2022JJ40633)。
关键词
导弹
三维拦截制导律
预设性能控制
有限时间控制
扩张状态观测器
Missile
Three dimensional interception guidance law
Prescribed performance control
Finite time control
Extended state observer
