| Identifiant de l'article : |
 |
ensl-00654808, version 1 |
|
|
| Domaine : |
|
|
|
|
| Titre : |
|
Making Reassignment Adjustable: the Levenberg-Marquardt Approach |
|
|
| Auteur(s) : |
|
François Auger1, E. Chassande-Mottin2, Patrick Flandrin3 |
|
|
| Laboratoire : |
|
| 1 : |
IREENA - Institut de Recherche en Electrotechnique et Electronique de Nantes Atlantique |
|
| 2 : |
APC - AstroParticule et Cosmologie |
|
| 3 : |
Phys-ENS - Laboratoire de Physique de l'ENS Lyon |
|
|
|
| Équipe de recherche : |
|
APC - ADAMIS |
| Résumé : |
|
This paper presents a new time-frequency reassignment process of the spectrogram, called the Levenberg-Marquardt reassignment. Compared to the classical one, this new reassignment process uses the second-order derivatives of the phase of the short-time Fourier transform, and provides the user with a setting parameter. This parameter allows him to produce either a weaker or a stronger localization of the signal components in the time-frequency plane. |
|
|
|
Langue du texte
intégral : |
|
Anglais |
|
|
| Mots-clés : |
|
time-frequency – reassignment – Levenberg-Marquardt |
|
|
| Commentaire : |
|
accepted for publication, to appear in Proc. of IEEE Int. Conf. on Acoust., Speech and Signal Proc. ICASSP-12, Kyoto (Japan), March 25-30, 2012. |
|
|
|
Récupérer au format
