A note on the problem of semiglobal practical stabilization of uncertain nonlinear systems via dynamic output feedback

Authors
Isidori, A Teel, AR Praly, L
Citation
A. Isidori et al., A note on the problem of semiglobal practical stabilization of uncertain nonlinear systems via dynamic output feedback, SYST CONTR, 39(3), 2000, pp. 165-171
Citations number
7
Categorie Soggetti
AI Robotics and Automatic Control
Journal title
SYSTEMS & CONTROL LETTERS
ISSN journal
01676911 → ACNP
Volume
39
Issue
3
Year of publication
2000
Pages
165 - 171
Database
ISI
SICI code
0167-6911(20000315)39:3<165:ANOTPO>2.0.ZU;2-F
Abstract
It is known that if a system can be (robustly) globally asymptotically stab ilized by means of a feedback that is driven by functions that are uniforml y completely observable (UCO), then this system can be practically semiglob ally stabilized by means of(possibly dynamic) output feedback. This papers discusses a significant structural hypothesis under which the existence of a dynamic feedback driven by UCO functions is guaranteed. The class of syst ems which satisfy this hypothesis includes any stabilizable and detectable linear system and any relative degree one nonlinear system which is stabili zable by dynamic output feedback. In particular, the hypothesis does not re quire the system to be minimum phase. (C) 2000 Elsevier Science B.V. All ri ghts reserved.