基于LQG/LTR方法的飞机自动着陆系统设计  

DESIGN OF AN AIRCRAFT AUTO-LANDING SYSTEM BASED ON THE LQG/LTR METHOD

作　　者：刘冰[1] 艾剑良[1] 

机构地区：[1]复旦大学力学与工程科学系,上海200433

出　　处：《动力学与控制学报》2010年第1期92-96,共5页Journal of Dynamics and Control

摘　　要：用LQG/LTR方法设计的自动着陆系统就拥有较强的鲁棒性,可以抵御强风的干扰.本文简述了LQG/LTR方法的原理,并用该方法设计了某商用飞机的自动着陆系统.仿真结果表明,LQG/LTR方法在一定条件下对于非最小相位系统效果较好,所设计的自动着陆系统在飞机受到大气扰动以及模型摄动等诸多干扰的情况下仍能起到良好的控制作用,可实现较强的鲁棒稳定性.The automatic landing system based on the LQG/LTR method has good robustness, which can resist strong wind shear. This paper gave a brief introduction to the principle of the LQG/LTR method and presented an LQG/LTR automatic landing controller design for a commercial airplane. Simulation results show that the LQG/ LTR method works well on non-minimal system under certain conditions. The auto-landing system designed can maintain good control effect with the presence of several disturbances such as wind shear and model uncertainty, hence achieving good robust stability.

关 键 词：鲁棒性 LQG/LTR方法 大气紊流 模型不确定性 

分 类 号：V249.1[航空宇航科学与技术—飞行器设计]