期刊
IEEE TRANSACTIONS ON SIGNAL PROCESSING
卷 65, 期 8, 页码 2093-2103出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TSP.2017.2656838
关键词
Time-frequency; reassignment; synchrosqueezing; AM/FM demodulation; multicomponent signals
资金
- French Agence Nationale de la Recherche (ANR) [ANR-13-BS03-0002-01]
- EPSRC [EP/J015180/1]
- Engineering and Physical Sciences Research Council [EP/J015180/1] Funding Source: researchfish
- EPSRC [EP/J015180/1] Funding Source: UKRI
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.
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