High-Order Synchrosqueezing Transform for Multicomponent Signals Analysis - With an Application to Gravitational-Wave Signal

Duong-Hung Pham (1, 2) , Sylvain Meignen (1)

1 CVGI - Calcul des Variations, Géométrie, Image
2 IRIT-MINDS - CoMputational imagINg anD viSion

This study puts forward a generalization of the short-time Fourier-based Synchrosqueezing Transform using a new local estimate of instantaneous frequency. Such a technique enables not only to achieve a highly concentrated time-frequency representation for a wide variety of AM-FM multicomponent signals but also to reconstruct their modes with a high accuracy. Numerical investigation on synthetic and gravitational-wave signals shows the efficiency of this new approach.

Mots clés: synchrosqueezing; AM/FM; multicomponent signals; reassignment; Time-frequency

Domaines: Mathématiques [math]; Traitement du signal et de l'image [eess.SP]

Duong-Hung Pham, Sylvain Meignen. High-Order Synchrosqueezing Transform for Multicomponent Signals Analysis - With an Application to Gravitational-Wave Signal. IEEE Transactions on Signal Processing, 2017, 65 (12), pp.3168-3178. ⟨10.1109/TSP.2017.2686355⟩. ⟨hal-01912852v2⟩