In many engineering applications, continuous-time models are preferred to discrete-time ones, in that they provide good physical insight and can be derived also from non-uniformly sampled data. However, for such models, model selection is a hard task if no prior physical knowledge is given. In this paper, we propose a non-parametric approach to infer a continuous-time linear model from data, by automatically selecting a proper structure of the transfer function and guaranteeing to preserve the system stability properties. By means of benchmark simulation examples, the proposed approach is shown to outperform state-of-the-art continuous-time methods, also in the critical case when short sequences of canonical input signals, like impulses or steps, are used for model learning.

(2021). Kernel-based identification of asymptotically stable continuous-time linear dynamical systems [journal article - articolo]. In INTERNATIONAL JOURNAL OF CONTROL. Retrieved from http://hdl.handle.net/10446/171530

Kernel-based identification of asymptotically stable continuous-time linear dynamical systems

Mazzoleni, Mirko;Previdi, Fabio
2021

Abstract

In many engineering applications, continuous-time models are preferred to discrete-time ones, in that they provide good physical insight and can be derived also from non-uniformly sampled data. However, for such models, model selection is a hard task if no prior physical knowledge is given. In this paper, we propose a non-parametric approach to infer a continuous-time linear model from data, by automatically selecting a proper structure of the transfer function and guaranteeing to preserve the system stability properties. By means of benchmark simulation examples, the proposed approach is shown to outperform state-of-the-art continuous-time methods, also in the critical case when short sequences of canonical input signals, like impulses or steps, are used for model learning.
articolo
Scandella, Matteo; Mazzoleni, Mirko; Formentin, Simone; Previdi, Fabio
(2021). Kernel-based identification of asymptotically stable continuous-time linear dynamical systems [journal article - articolo]. In INTERNATIONAL JOURNAL OF CONTROL. Retrieved from http://hdl.handle.net/10446/171530
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10446/171530
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