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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

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Publication classification

C1 Refereed article in a scholarly journal; C Journal article

Copyright notice

2007, IEEE

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