Back to Search
Start Over
Approximation-based adaptive tracking of a class of uncertain nonlinear time-delay systems in nonstrict-feedback form.
- Source :
-
International Journal of Systems Science . May2017, Vol. 48 Issue 7, p1347-1355. 9p. - Publication Year :
- 2017
-
Abstract
- This paper investigates a predefined performance control problem for adaptive tracking of uncertain nonlinear time-delay systems in nonstrict-feedback form. Nonstrict-feedback nonlinearities, time-varying delays and external disturbances are assumed to be unknown. Based on the exponential decaying design functions denoting the preassigned bounds of transient and steady-state tracking errors, some variable separation lemmas are derived to design an approximation-based robust adaptive control scheme in the presence of nonstrict-feedback time-delayed nonlinearities. The proposed control system guarantees that a tracking error remains within a predesigned bound for allt≥ 0 and converges to a preselected neighbourhood of the origin. Compared with the existing results in the literature, the main contribution of this paper is to provide a solution on the guaranteed performance control in the presence of unknown nonstrict-feedback nonlinearities related to all delayed state variables. Simulation results illustrate the effectiveness of the proposed methodology. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 00207721
- Volume :
- 48
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- International Journal of Systems Science
- Publication Type :
- Academic Journal
- Accession number :
- 121519886
- Full Text :
- https://doi.org/10.1080/00207721.2016.1256450