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| Titre : |
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Making Reassignment Adjustable: the Levenberg-Marquardt Approach |
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| Auteur(s) : |
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François Auger ( )1, E. Chassande-Mottin ()2, Patrick Flandrin (,  )3 |
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| Laboratoire : |
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| Équipe de recherche : |
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APC - ADAMIS |
| Résumé : |
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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. |
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| Nombre de pages : |
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4 |
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Langue du texte
intégral : |
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Anglais |
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Date de production,
écriture : |
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26/09/2011 |
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| Mots-clés : |
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time-frequency – reassignment – Levenberg-Marquardt |
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| Commentaire : |
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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. |
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