Title :
Improving stability margins via dynamic-state feedback for systems with constant uncertainty
Author :
Schmitendorf, W.E. ; Stalford, H.L.
Author_Institution :
Dept. of Mech. & Aerosp. Eng., California Univ., Irvine, CA, USA
fDate :
8/1/1997 12:00:00 AM
Abstract :
It is well known that if a linear system with time-varying uncertainty in the system matrix and/or the input connection matrix is quadratically stabilizable by linear dynamic state feedback, then it is also quadratically stabilizable by linear static state feedback. In this paper, we provide an example of a system with unknown constant real uncertainty which is stabilizable by a linear, dynamic-state feedback controller but not by a static-state feedback controller
Keywords :
closed loop systems; linear systems; matrix algebra; robust control; state feedback; time-varying systems; uncertain systems; closed loop systems; dynamic-state feedback; linear system; matrix algebra; robust control; stabilisation; stability margins; time-varying systems; uncertain system; Adaptive control; Automatic control; Control systems; Linear feedback control systems; Linear systems; Output feedback; Stability; State feedback; Time varying systems; Uncertainty;
Journal_Title :
Automatic Control, IEEE Transactions on
