On Demodulation, Ridge Detection, and Synchrosqueezing for Multicomponent Signals

Sylvain Meignen, Duong Hung Pham, Stephen McLaughlin

Research output: Contribution to journalArticle

30 Citations (Scopus)
45 Downloads (Pure)

Abstract

In this paper, we present a novel technique for the retrieval of the modes of a multicomponent signal using a time-frequency (TF) representation of the signal. Our approach is based on a novel ridge extraction method that takes into account the fact that the TF representation is both discrete in time and frequency, followed by a demodulation procedure. Numerical results show the benefits of the proposed approach for mode reconstruction in comparison to similar techniques that do not make use of demodulation. Furthermore, numerical investigations show that the proposed approach sharpens the TF representation on which it is built.

Original languageEnglish
Pages (from-to)2093-2103
Number of pages11
JournalIEEE Transactions on Signal Processing
Volume65
Issue number8
Early online date23 Jan 2017
DOIs
Publication statusPublished - 15 Apr 2017

Keywords

  • AM/FM demodulation
  • Multicomponent signals
  • Reassignment
  • Synchrosqueezing
  • Time-frequency

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering

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