基于鲁棒伺服LQR的无人机横航向自动着陆控制律设计  

Design of Lateral Autoland Control Law for UAV Based on Robust Servo LQR

作　　者：王利国 矫永康 WANG Liguo;JIAO Yongkang(AVIC Materials and Equipment Co.Ltd,Beijing 100027,China;Naval Aviation University,Yantai Shandong 264001,China)

机构地区：[1]中航物资装备有限公司,北京100027 [2]海军航空大学,山东烟台264001

出　　处：《海军航空工程学院学报》2020年第1期155-160,共6页Journal of Naval Aeronautical and Astronautical University

摘　　要：针对无人机自动着陆过程中外部不确定性强,影响控制精度和飞行安全的问题,提出一种基于鲁棒伺服线性二次型(Linear Quadratic Regulator,LQR)的横航向自动着陆控制律设计方法。基于鲁棒伺服LQR设计滚转姿态保持内回路,设计航向保持/预选模态和航向信标(Localizer,LOC)截获与跟踪模态,实现横航向轨迹的稳定与精确跟踪。数字仿真结果表明,该方法具有较好的控制效果。To solve the problems of control accuracy and safety which were influenced by external uncertainties in the process of automatic landing for UAV,a lateral autoland control law design method was presented based on robust servo LQR.First,roll hold mode was designed as inner loop of control using robust servo LQR method.Then,head hold/select mode,LOC capture and track mode were designed for stable and accurate tracking of lateral trajectory.Simulation results show the proposed method has a good control effect.

关 键 词：自动着陆 鲁棒伺服LQR 航向预选 LOC截获与跟踪 轨迹跟踪 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]