Title :
On the robustness of LQ regulators
Author :
Soroka, E. ; Shaked, U.
Author_Institution :
Tel-Aviv University, Tel-Aviv, Israel
fDate :
7/1/1984 12:00:00 AM
Abstract :
It is shown that in spite of its large gain and phase margins the linear quadratic state feedback regulator may suffer from poor robustness where small changes in the parameters of the system may lead to fast unstable closed-loop modes.
Keywords :
Linear-quadratic control; Robustness, linear systems; State-feedback, linear systems; Continuous time systems; Control systems; Linear feedback control systems; Open loop systems; Optimal control; Regulators; Robust control; Robustness; State feedback; Weight control;
Journal_Title :
Automatic Control, IEEE Transactions on
DOI :
10.1109/TAC.1984.1103612
