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High-Speed piecewise affine virtual sensors

Poggi, Tomaso and Rubagotti, Matteo and Bemporad, Alberto and Storace, Marco High-Speed piecewise affine virtual sensors. IEEE Transactions on Industrial Electronics, 59 (2). 1228 -1237. ISSN 0278-0046 (2012)

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Abstract

This paper proposes piecewise affine (PWA) virtual sensors for the estimation of unmeasured variables of nonlinear systems with unknown dynamics. The estimation functions are designed directly from measured inputs and outputs and have two important features. First, they enjoy convergence and optimality properties, based on classical results on parametric identification. Second, the PWA structure is based on a simplicial partition of the measurement space and allows one to implement very effectively the virtual sensor on a digital circuit. Due to the low cost of the required hardware for the implementation of such a particular structure and to the very high sampling frequencies that can be achieved, the approach is applicable to a wide range of industrial problems.

Item Type: Article
Identification Number: https://doi.org/10.1109/TIE.2011.2161064
Uncontrolled Keywords: high speed piecewise affine virtual sensors; measurement space; nonlinear systems; parametric identification; unknown dynamics; digital circuits; sensors; virtual instrumentation
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
T Technology > TJ Mechanical engineering and machinery
Research Area: Computer Science and Applications
Depositing User: Users 37 not found.
Date Deposited: 02 Mar 2012 14:47
Last Modified: 30 Sep 2013 12:38
URI: http://eprints.imtlucca.it/id/eprint/1205

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