H∞-norm-based optimization for the identification of gray-box LTI state-space model parameters

Autor: Edouard Laroche, Daniel Vizer, Guillaume Mercère, Olivier Prot
Rok vydání: 2016
Předmět:
Zdroj: Systems & Control Letters. 92:34-41
ISSN: 0167-6911
DOI: 10.1016/j.sysconle.2016.03.003
Popis: In this paper, the challenging problem of determining the unknown parameters of an identifiable LTI state-space representation of a stable system is addressed by resorting to a specific H∞-norm-based optimization algorithm. More specifically, by assuming the availability of a reliable fully-parameterized representation of the system to identify, the algorithm developed herein consists in restructuring this initial black-box representation of the system dynamics via the optimization of a dedicated maximum eigenvalue-based criterion. This study shows that this H∞-norm-based approach can be seen as a good solution for the identification of gray-box LTI state-space representations and, by extension, as an interesting alternative or a reliable initialization step for the standard output-error techniques.
Databáze: OpenAIRE