Title :
A Condition for Certainty Equivalence Output Feedback Stabilization of Nonlinear Systems
Author :
Carnevale, Daniele ; Karagiannis, Dimitrios ; Astolfi, Alessandro
Author_Institution :
Dipt. di Inf., Sist. e Produzione, Univ. di Roma Tor Vergata, Rome, Italy
fDate :
5/1/2010 12:00:00 AM
Abstract :
Direct certainty equivalence results for output feedback stabilization of nonlinear systems are proposed. The first result is a simple extension of the indirect approach used in a paper by Praly and Arcak. The second result allows to deal with observers yielding nonuniformly converging estimates with respect to the norm of (a subset of) the system state. Application of these results with the reduced-order observer of Karagiannis are discussed.
Keywords :
feedback; nonlinear control systems; observers; reduced order systems; stability; certainty equivalence output feedback stabilization; nonlinear systems; reduced-order observer; Control systems; Convergence; Estimation error; Feeds; Nonlinear control systems; Nonlinear systems; Observers; Output feedback; Postal services; State estimation; State feedback; Yield estimation; Certainty equivalence; nonlinear cascades; output feedback;
Journal_Title :
Automatic Control, IEEE Transactions on
DOI :
10.1109/TAC.2010.2041980
