DocumentCode :
2417985
Title :
Adaptive feedback linearization: implementability and robustness
Author :
Kabuli, M. Güntekin ; Kosut, Robert L.
Author_Institution :
Integrated Systems Inc., Santa Clara, CA, USA
fYear :
1992
fDate :
1992
Firstpage :
251
Abstract :
The robustness to parameter mismatch in feedback-linearization-based nonlinear tracking systems is investigated. The certainty-equivalence principle gives rise to four possible feedback configurations. One is the widely used case where the states are assumed to be available; two others are observer-based; and the last one is a model-follower based on a feedforward/feedback implementation using a signal generator. It is noted that the unacceptable transient behavior of the adaptive tracking scheme is closely related to the sensitivity of the underlying certainty-equivalence-based control, which is analyzed through a perturbation approach. An example system is used to illustrate the system behavior using the four schemes
Keywords :
adaptive control; feedback; linearisation techniques; nonlinear control systems; perturbation techniques; stability; tracking systems; transient response; adaptive feedback linearisation; certainty-equivalence principle; nonlinear tracking systems; parameter mismatch; perturbation; robustness; sensitivity; stability; transient behavior; Adaptive control; Aerospace engineering; Contracts; Observers; Output feedback; Programmable control; Robust control; Robustness; Signal generators; State feedback; Transient analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Decision and Control, 1992., Proceedings of the 31st IEEE Conference on
Conference_Location :
Tucson, AZ
Print_ISBN :
0-7803-0872-7
Type :
conf
DOI :
10.1109/CDC.1992.371745
Filename :
371745
Link To Document :
بازگشت