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Authors: Alessandro Astilfi 1 ; Romeo Ortega 2 and Aneesh Venkatraman 3

Affiliations: 1 Imperial College London, United Kingdom ; 2 CNRS–SUPELEC, France ; 3 University of Groningen, Netherlands

Abstract: The problem of velocity estimation for mechanical systems is of great practical interest. Although many partial solutions have been reported in the literature the basic question of whether it is possible to design a globally convergent speed observer for general n degrees of freedom mechanical systems remains open. In this paper an affirmative answer to the question is given by proving the existence of a 3n+1--dimensional globally em exponentially convergent speed observer. Instrumental for the construction of the speed observer is the use of the Immersion and Invariance technique, in which the observer design problem is recast as a problem of rendering attractive and invariant a manifold defined in the extended state--space of the plant and the observer.

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Paper citation in several formats:
Astilfi, A.; Ortega, R. and Venkatraman, A. (2009). A Globally Exponentially Convergent Immersion and Invariance Speed Observer for n--Degrees of Freedom Mechanical Systems. In Proceedings of the International Workshop on Networked embedded and control system technologies: European and Russian R&D cooperation (ICINCO 2009) - Workshop NESTER; ISBN 978-989-674-004-7, SciTePress, pages 134-145. DOI: 10.5220/0002279101340145

@conference{workshop nester09,
author={Alessandro Astilfi. and Romeo Ortega. and Aneesh Venkatraman.},
title={A Globally Exponentially Convergent Immersion and Invariance Speed Observer for n--Degrees of Freedom Mechanical Systems},
booktitle={Proceedings of the International Workshop on Networked embedded and control system technologies: European and Russian R&D cooperation (ICINCO 2009) - Workshop NESTER},
year={2009},
pages={134-145},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002279101340145},
isbn={978-989-674-004-7},
}

TY - CONF

JO - Proceedings of the International Workshop on Networked embedded and control system technologies: European and Russian R&D cooperation (ICINCO 2009) - Workshop NESTER
TI - A Globally Exponentially Convergent Immersion and Invariance Speed Observer for n--Degrees of Freedom Mechanical Systems
SN - 978-989-674-004-7
AU - Astilfi, A.
AU - Ortega, R.
AU - Venkatraman, A.
PY - 2009
SP - 134
EP - 145
DO - 10.5220/0002279101340145
PB - SciTePress

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