title: Variogram-based fault diagnosis in an interconnected tank system.
abstract: We consider in this paper the fault diagnosis problem of a three tank system DTS-200 pilot plant. The presented approach is based on the analysis of the variogram, which is a graphical variance representation that characterizes the distribution of a measured dataset, and is used to extract the sensor fault parameters. These parameters are obtained by determining the best mathematical model that fits the empirical data. Nonlinear regression techniques are used to estimate the model coefficients. Experimental study is provided to illustrate the potential applicability of this method in process monitoring.
authors.affiliation: Applied Control Laboratory, University of Boumerdes, Av. de l'indépendance, 35000 Boumerdès, Algeria. a_kouadri@hotmail.com
authors.forename: Abdelmalek
authors.initials: A
authors.lastname: Kouadri
authors.forename: Mohanad Amokrane
authors.initials: MA
authors.lastname: Aitouche
authors.forename: Mimoun
authors.initials: M
authors.lastname: Zelmat