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Communication Dans Un Congrès Année : 2023

A parsimonious identification approach in the frequency-domain for experimental fractional systems of unknown order

Résumé

When the order of experimental fractional systems is unknown, frequency domain identification is typically based on linear least-squares (L2) methods, which often prove unsatisfactory. The main reason is that the solutions they provide are dense, often leading to a continuous of identified fractional differential orders, which obfuscate the very basic phenomena one wishes to highlight. In order to overcome such difficulty, the present work proposes the use of a L1 based nonlinear identification approach, which naturally leads to parsimonious identified results. This method is successfully illustrated on a system transfer function with both integer and fractional differential terms.
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Dates et versions

cea-04490207 , version 1 (05-03-2024)

Identifiants

  • HAL Id : cea-04490207 , version 1

Citer

Jose Antunes, Philippe Piteau, Xavier Delaune, Romain Lagrange, Domenico Panunzio. A parsimonious identification approach in the frequency-domain for experimental fractional systems of unknown order. NODYCON 2023, Jun 2023, Rome, Italy. ⟨cea-04490207⟩
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