Discrete-time Linear Parametric Identification: An Algebraic Approach
Sprache des Titels:
Englisch
Original Buchtitel:
Conference 'Journees Identification et Modelisation Experimentale 2006' (JIME'06)
Original Kurzfassung:
An algebraic framework for continuous-time linear systems identification introduced in the literature some years ago has revealed as an interesting alternative way for on-line parameter identification. The present contribution aims at conveying those ideas to linear time-invariant discrete-time systems,with particular emphasis attached to application issues. To this end, an on-line linear identifier for n-th order systems is evolved, re-sorting to the operational representation of the dynamics. Being discussed of the basis of a fifth-order model of a drive-train, the numerical condition of the obtained setting of the identifier is found to suffer significantly with decreasing sampling times. A setting not experiencing these numerical problems is finally introduced by means of a re-parametrization of the identifier via application of the bilinear Tustin transform. The already implemented computer programs, where computer algebra plays an important role, are available.
Sprache der Kurzfassung:
Englisch
Erscheinungsjahr:
2006
Anzahl der Seiten:
10
Notiz zur Publikation:
Fliess M., Fuchshumer S., Schlacher K., Sira-Ramirez H., et.al.: Discrete-time Linear Parametric Identification: An Algebraic Approach, In: CD Proceedings Conference „Journées Identification et Modélisation Expérimentale 2006“ (JIME’06), November 16-17 2006, Poitiers, France, 2006.
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