基于LQG/LTR的飞行控制系统设计与仿真  

Design and Simulation of Flight Control System Based on LQG/LTR

作　　者：秦媛[1] 章卫国[1] 王蕾[1] 史静平[1] 

机构地区：[1]西北工业大学自动化学院,西安710072

出　　处：《弹箭与制导学报》2006年第S7期527-528,532,共3页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：线性二次型高斯/回路传输复现技术(LQG/LTR)是一种多变量频域设计方法,它以良好的鲁棒性和解耦特性获得了广泛的应用。文中以某飞机的纵向着陆模态为例,采用LQG/LTR原理设计了该飞行控制系统的LQG/LTR控制器。仿真结果表明,用该控制方法设计的飞行控制系统具有良好的动态品质,并具有较强的干扰抑制能力,从而使系统具有良好的鲁棒性和稳定性。The linear quadratic Gaussian/loop-transfer recovery(LQG/LTR)is a design technique which works in the multivariable frequency domain.This approach has been used extensively for its strong robustness and the decoupling speciality.In this paper,the LQG/LTR method has been used to design the controller of a flight control system and takes automatic landing as an example.The simulation results show that the designed system based on LQG/LTR has a good dynamic quality and the ability of disturbance rejection,and its good robustness as well as stability can also be ob- tained.

关 键 词：线性二次型高斯/回路传输复现 鲁棒性 分离定理 奇异值 飞行控制 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]