A new optimization method for reference-based quadratic contrast functions in a deflation scenario

Abstract : This paper deals with the problem of blind source separation of convolutive MIMO mixtures by a deflation procedure. Contrast functions showing a quadratic dependence with respect to the searched parameters have recently been proposed. Combined with a fast SVD-based optimization technique, they proved to be very efficient for the extraction of one source signal. In this contribution, we examine how these contrast functions behave in a deflation scenario. We show that the SVD-based optimization method requires a good knowledge of the filter orders due to its sensitivity on a rank estimation. To overcome the difficulty, we propose an optimal step size gradient algorithm
Type de document :
Communication dans un congrès
ICASSP 2009 : IEEE International Conference on Acoustics, Speech and Signal Processing, Apr 2009, Taipei, Taiwan. IEEE, Proceedings ICASSP 2009 : IEEE International Conference on Acoustics, Speech and Signal Processing, pp.3161 - 3164, 2009, 〈10.1109/ICASSP.2009.4960295 〉
Liste complète des métadonnées

Littérature citée [5 références]  Voir  Masquer  Télécharger

https://hal.archives-ouvertes.fr/hal-00442763
Contributeur : Médiathèque Télécom Sudparis & Institut Mines-Télécom Business School <>
Soumis le : mardi 22 décembre 2009 - 14:32:09
Dernière modification le : jeudi 7 février 2019 - 16:50:27
Document(s) archivé(s) le : vendredi 18 juin 2010 - 00:02:56

Fichier

icassp09.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Citation

Marc Castella, Eric Moreau. A new optimization method for reference-based quadratic contrast functions in a deflation scenario. ICASSP 2009 : IEEE International Conference on Acoustics, Speech and Signal Processing, Apr 2009, Taipei, Taiwan. IEEE, Proceedings ICASSP 2009 : IEEE International Conference on Acoustics, Speech and Signal Processing, pp.3161 - 3164, 2009, 〈10.1109/ICASSP.2009.4960295 〉. 〈hal-00442763〉

Partager

Métriques

Consultations de la notice

191

Téléchargements de fichiers

71