musique contemporaine

Ircam - articles scientifiques notice originale

Criterion design for optimizing low-cost approximations of infinite-dimensional systems: towards efficient real-time simulation

Type

text
 

Genre(s)

article
 

Forme(s)

document numérique
 

Accès sur site

  • Version numérique intégrale de l'article
 

Cette ressource est disponible chez l'organisme suivant : Ircam - Centre Pompidou

Identification

Titre

Criterion design for optimizing low-cost approximations of infinite-dimensional systems: towards efficient real-time simulation
 

Nom(s)

Helie, Thomas (auteur)
 
Matignon, Denis (auteur)
 
Mignot, Rémi (auteur)
 

Publication

Cachan, FRANCE , 2006
 

Description

Résumé

Linear systems with irrational transfer functions are difficult to simulate in the time domain. We consider causal systems which can be represented with poles and cuts in some left half-plane of the Laplace domain. Whereas standard interpolation methods yield convergent but high-dimensional approximations, it is possible to derive efficient low-cost approximations thanks to optimization procedures. Defining the criterion (choice of weightening measure, regularization and contraints) is however of utmost importance: this must be carefully designed and driven by each application. Two examples will illustrate the methodology, and a third one will present an extension to a compound system with delays.
 

Note(s)

Contribution au colloque ou congrès : IFAC - Workshop on Control Applications of Optimisation
 

Localisation

Envoyer la notice

Bookmark and Share 
 

Identifiant OAI

 

Date de la notice

2010-02-25 01:00:00
 

Identifiant portail

 

Contact