Brief paper: High gain observers with updated gain and homogeneous correction terms

Authors:
V. Andrieu;L. Praly;A. Astolfi
Affiliations:
LAAS-CNRS, University of Toulouse, 31077 Toulouse, France;CAS, ícole des Mines de Paris, Fontainebleau, France;EEE Department, Imperial College, London, UK and DISP, University of Rome Tor Vergata, Roma, Italy
Venue:
Automatica (Journal of IFAC)
Year:
2009

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Abstract

Exploiting dynamic scaling and homogeneity in the bi-limit, we develop a new class of high gain observers which incorporate a gain update law and nonlinear output error injection terms. A broader class of systems can be addressed and the observer gain is better fitted to the incremental rate of the nonlinearities. The expected improved performance is illustrated.