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State and input simultaneous estimation for a class of time-delay systems with uncertainties

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journal contribution
posted on 2007-06-01, 00:00 authored by Hieu TrinhHieu Trinh, Q Ha
This brief addresses the problem of estimation of both the states and the unknown inputs of a class of systems that are subject to a time-varying delay in their state variables, to an unknown input, and also to an additive uncertain, nonlinear disturbance. Conditions are derived for the solvability of the design matrices of a reduced-order observer for state and input estimation, and for the stability of its dynamics. To improve computational efficiency, a delay-dependent asymptotic stability condition is then developed using the linear matrix inequality formulation. A design procedure is proposed and illustrated by a numerical example.

History

Journal

IEEE transactions on circuits and systems. II, Express briefs

Volume

54

Pagination

527 - 531

Location

Piscataway, N.J.

Open access

  • Yes

ISSN

1549-7747

eISSN

1558-3791

Language

eng

Notes

This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.

Publication classification

C1 Refereed article in a scholarly journal; C Journal article

Copyright notice

2007, IEEE

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