Title :
Effects of using observers on stabilization of uncertain linear systems
Author :
Jabbari, Faryar ; Schmitendorf, W.E.
Author_Institution :
Dept. of Mech. & Aerosp. Eng., California Univ., Irvine, CA, USA
fDate :
2/1/1993 12:00:00 AM
Abstract :
The effects of observers on robust linear feedback controllers are studied. Sufficient conditions are obtained that guarantee full recovery of the allowable uncertainty bounds attainable by full state feedback. The effects of the resulting high gain observers on the disturbance rejection bounds are also studied. It is shown that full recovery of the uncertainty bound leads to possible large degradation in disturbance rejection. However, if there is only additive plant disturbance and no measurement disturbance, this degradation can be prevented
Keywords :
linear systems; stability; state estimation; disturbance rejection; disturbance rejection bounds; full state feedback; high gain observers; stabilization; state estimation; sufficient conditions; uncertain linear systems; uncertainty bound; Automatic control; Degradation; Differential equations; Linear systems; Programmable control; Robust stability; Robustness; State feedback; State-space methods; Uncertainty;
Journal_Title :
Automatic Control, IEEE Transactions on
