A Novel Multitaper Reassignment Method for Estimation of Phase Synchrony

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Sammanfattning

The matched phase reassignment, developed to estimate phase synchrony of transient oscillatory signals, is extended into a multitaper phase reassignment (MTPR) method. The method gives perfect time-frequency localization for two transients with zero phase difference and estimates of time locations and oscillatory frequencies in low signal-to-noise ratios. For different signal-to-noise ratios between channels a suggestion of corrected reassignment vector expressions is given, resulting in minimized variance. The MTPR outperforms the matched phase reassignment as well as state-of-the-art methods, such as Pearson's linear correlation, time-frequency cross-spectrogram phase estimation and the Phase Lag Index method. An example of estimated phase differences, time locations and oscillatory frequencies of electrical signals measured from the brain is also shown.

Originalspråkengelska
Titel på värdpublikation29th European Signal Processing Conference, EUSIPCO 2021 - Proceedings
FörlagEuropean Signal Processing Conference, EUSIPCO
Sidor2164-2168
Antal sidor5
ISBN (elektroniskt)9789082797060
DOI
StatusPublished - 2021
Evenemang29th European Signal Processing Conference, EUSIPCO 2021 - Dublin, Irland
Varaktighet: 2021 aug. 232021 aug. 27

Publikationsserier

NamnEuropean Signal Processing Conference
Volym2021-August
ISSN (tryckt)2219-5491

Konferens

Konferens29th European Signal Processing Conference, EUSIPCO 2021
Land/TerritoriumIrland
OrtDublin
Period2021/08/232021/08/27

Bibliografisk information

Publisher Copyright:
© 2021 European Signal Processing Conference. All rights reserved.

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