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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Communication dans un congrès
2012 IEEE International Conference on Acoustics, Speech and Signal Processing, Kyoto, Japan. IEEE, pp.3889-3892, 2012, Acoustics, Speech, and Signal Processing (ICASSP), International Conference on. <10.1109/ICASSP.2012.6288767>


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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. IEEE, pp.3889-3892, 2012, Acoustics, Speech, and Signal Processing (ICASSP), International Conference on. <10.1109/ICASSP.2012.6288767>. <ensl-00654808>

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