Title
Design Of Unknown Input Fractional-Order Observers For Fractional-Order Systems
Abstract
This paper considers a method of designing fractional-order observers for continuous-time linear fractional-order systems with unknown inputs. Conditions for the existence of these observers are given. Sufficient conditions for the asymptotical stability of fractional-order observer errors with the fractional order a satisfying 0 < alpha < 2 are derived in terms of linear matrix inequalities. Two numerical examples are given to demonstrate the applicability of the proposed approach, where the fractional order a belongs to 1 <= alpha < 2 and 0 < alpha <= 1, respectively. A stability analysis of the fractional-order error system is made and it is shown that the fractional-order observers are as stable as their integer order counterpart and guarantee better convergence of the estimation error.
Year
DOI
Venue
2013
10.2478/amcs-2013-0037
INTERNATIONAL JOURNAL OF APPLIED MATHEMATICS AND COMPUTER SCIENCE
Keywords
Field
DocType
fractional calculus, fractional-order systems, fractional-order observers, existence condition, linear matrix inequality, unknown input, stability
Integer,Convergence (routing),Mathematical optimization,Control theory,Matrix (mathematics),Fractional calculus,Observer (quantum physics),Mathematics,Linear matrix inequality
Journal
Volume
Issue
ISSN
23
3
1641-876X
Citations 
PageRank 
References 
12
0.76
10
Authors
4
Name
Order
Citations
PageRank
Ibrahima N'Doye1416.68
Mohamed Darouach226142.82
Holger Voos311834.98
Michel Zasadzinski48214.78