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Making Reassignment Adjustable: the Levenberg-Marquardt Approach

Abstract : 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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Contributor : Patrick Flandrin Connect in order to contact the contributor
Submitted on : Friday, December 23, 2011 - 9:16:14 AM
Last modification on : Tuesday, January 4, 2022 - 10:20:01 AM
Long-term archiving on: : Saturday, March 24, 2012 - 2:20:31 AM


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François Auger, E. Chassande-Mottin, Patrick Flandrin. Making Reassignment Adjustable: the Levenberg-Marquardt Approach. 2012 IEEE International Conference on Acoustics, Speech and Signal Processing, Kyoto, Japan. pp.3889-3892, ⟨10.1109/ICASSP.2012.6288767⟩. ⟨ensl-00654808⟩



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