ACSE - V2

ACSE
 ACSE-05 ICGST

Robust Observers for Linear Systems With Unknown Inputs: a Review

O. Boubaker

Institut National des Sciences Appliquées et de Technologie (INSAT)

Centre Urbain Nord, B.P. N°676, 1080 TUNIS CEDEX, Tunisia


Abstract

In this paper, robust observers for linear systems with unknown inputs are reviewed. Both full and reduced order designs are considered. Transformations and substitutions based on coordinate system are used and existence conditions are provided. Full order observer designs are simple and estimates all states, those of reduced order are more complex and have the advantage of avoiding redundancy caused by reconstructing accessible states. Designs, advantages and drawbacks of the reviewed techniques are pointed and illustrated by means of the same numerical example.

Keywords: Robust observers, full order observers, reduced order observers, linear systems, Unknown inputs.

Biography:

A/Prof. Dr. Olfa Boubaker was born in Tunis (Tunisia) in 1969. She received the M.Sc. degree in Electrical Engineering in 1991 and the D.Sc. Degree in Control Engineering in 1995, from ENSET, Tunisia, respectively. In 2000, she is graduated from National Engineering school of Tunis, ENIT and received the Ph.D. degree in Electrical Engineering. Since 2000, Dr. Olfa Boubaker is a permanent Associate Professor at National Institute of Applied Sciences and Technology, INSAT, Tunisia, where she is in charge of the Automatic Control Teaching and where she manages a research group (Robust Control of Multivariable Systems). Since 1996, she is a permanent visitor of LAAS, CNRS (Toulouse/France). Her fields of interest include distributed parameter systems, variable structure systems, non linear systems, robust observers and robust control, and integrate many applications in biotechnology.


Post address: INSAT, Centre Urbain Nord, BP. 676, 1080 Tunis Cedex, Tunisia.
Fax : 216 - 71 - 704 - 329


E-mail : Olfa.Boubaker@insat.rnu.tn

BibTex:

@ARTICLE{P1110509001,

AUTHOR =      {O. Boubaker },

TITLE =           {Robust Observers for Linear Systems With Unknown Inputs: a Review },

JOURNAL =   {ICGST International Journal on Automatic Control and System Engineering, ACSE},

YEAR =           {2005},

VOLUME =     {V2}

}

(Full paper, 171 KB)