Work

Second-order Time-Reassigned Synchrosqueezing Transform: Application to Draupner Wave Analysis

Year: 2019

Type: conference-paper

Abstract: This paper addresses the problem of efficiently jointly representing a non-stationary multicomponent signal in time and frequency. We introduce a novel enhancement of the time-reassigned synchrosqueezing method designed to compute sharpened and reversible representations of impulsive or strongly modulated signals. After establishing theoretical relations of the new proposed method with our previous results, we illustrate in numerical experiments the improvement brought by our proposal when applied on both synthetic and real-world signals. Our experiments deal with an analysis of the Draupner wave record for which we provide pioneered time-frequency analysis results.

Source: European Signal Processing Conference (EUSIPCO)

DOI: 10.23919/eusipco.2019.8902342

Authors: Dominique Fourer, François Auger

Institutions: Informatique, BioInformatique, Systèmes Complexes, Institut de Recherche en Energie Electrique de Nantes Atlantique, Nantes Université

Language: English

Topic: Mathematical Analysis and Transform Methods

Subfield: Applied Mathematics

Field: Mathematics

Domain: Physical Sciences

Open Access status: green

Funder: Agence Nationale de la Recherche

Award: Analysis and Separation of Complex signals: Exploiting the Time-frequency structure