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Analyse des signaux non-stationnaires par transformation de Huang, Opérateur deTeager-Kaiser, et Transformation de Huang-Teager (THT)

Abstract : The objective rests on the treatment and analyzes nonstationary signals, multi-components.
For the treatment (filtering and denoising), we propose new tools based on the Huang-Transform (or empirical modal Decomposition: EMD).
On the basis of the Teager-Kaiser Energy Operator, we propose a new operator of measurement of interaction between two complex signals. We establish the theoretical properties with the time-frequency distributions of the class of Cohen. We show that it is a measurement of similarity and that it is adapted to the detection of signals.
For the analysis, we introduce a new method time-frequency based on the joint use of the EMD and the Teager-Kaiser operator: the Huang-Teager Transform (THT). To illustrate these concepts, of the results of filtering, denoising, detection, analysis time-frequency of signals are presented. We finish by the analysis and classification of the echoes of targets sonars by THT.
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https://tel.archives-ouvertes.fr/tel-00012141
Contributor : Jean-Christophe Cexus <>
Submitted on : Thursday, April 13, 2006 - 5:14:23 PM
Last modification on : Friday, October 23, 2020 - 4:50:54 PM
Long-term archiving on: : Saturday, April 3, 2010 - 10:17:30 PM

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  • HAL Id : tel-00012141, version 1

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Jean-Christophe Cexus. Analyse des signaux non-stationnaires par transformation de Huang, Opérateur deTeager-Kaiser, et Transformation de Huang-Teager (THT). Acoustique [physics.class-ph]. Université Rennes 1, 2005. Français. ⟨tel-00012141⟩

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