eprintid: 1835
rev_number: 11
eprint_status: archive
userid: 6
dir: disk0/00/00/18/35
datestamp: 2013-10-16 14:28:49
lastmod: 2014-03-05 13:29:47
status_changed: 2014-03-05 13:29:47
type: article
metadata_visibility: show
creators_name: Rubagotti, Matteo
creators_name: Poggi, Tomaso
creators_name: Oliveri, Albert
creators_name: Pascucci, Carlo A.
creators_name: Bemporad, Alberto
creators_name: Storace, Marco
creators_id: 
creators_id: 
creators_id: 
creators_id: 
creators_id: alberto.bemporad@imtlucca.it
creators_id: 
title: Low-complexity piecewise-affine virtual sensors: theory and design
ispublished: pub
subjects: QA75
divisions: CSA
full_text_status: none
keywords: Piecewise-affine functions, Nonlinear observers, Digital circuits
note: Published online: 04 Dec 2013
abstract: This paper is focused on the theoretical development and the hardware implementation of low-complexity piecewise-affine direct virtual sensors for the estimation of unmeasured variables of interest of nonlinear systems. The direct virtual sensor is designed directly from measured inputs and outputs of the system and does not require a dynamical model. The proposed approach allows one to design estimators which mitigate the effect of the so-called ‘curse of dimensionality’ of simplicial piecewise-affine functions, and can be therefore applied to relatively high-order systems, enjoying convergence and optimality properties. An automatic toolchain is also presented to generate the VHDL code describing the digital circuit implementing the virtual sensor, starting from the set of measured input and output data. The proposed methodology is applied to generate an FPGA implementation of the virtual sensor for the estimation of vehicle lateral velocity, using a hardware-in-the-loop setting.
date: 2014
date_type: published
publication: International Journal of Control 
volume: 87
number: 3
publisher: Taylor & Francis
pagerange: 622-632
id_number: 10.1080/00207179.2013.852250
refereed: TRUE
issn: 0020-7179
official_url: http://www.tandfonline.com/doi/abs/10.1080/00207179.2013.852250
citation:   Rubagotti, Matteo and Poggi, Tomaso and Oliveri, Albert and Pascucci, Carlo A. and Bemporad, Alberto and Storace, Marco  Low-complexity piecewise-affine virtual sensors: theory and design.  International Journal of Control , 87 (3).  pp. 622-632.  ISSN 0020-7179      (2014)