Parameter Estimation from the Cross-Spectrogram Reassignment Vectors

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Sammanfattning

In this paper we propose a novel technique to estimate the parameters of two Gaussian envelope oscillatory signals, with the same time-locations and oscillatory frequencies but possibly different phases. The phase difference and the length of the Gaussian envelope are estimated directly from the slopes of the corresponding cross-spectrogram reassignment vectors. Including the phase difference and the envelope length in the scaled reassignment of the cross-spectrogram will give a perfectly concentrated time-frequency spectrum where the location of the maximum gives estimates of the time and oscillatory frequency parameters. The proposed method is evaluated for different SNRs and is also compared to state-of-the-art techniques for phase estimation of oscillatory electrical activity measured from the brain.

Originalspråkengelska
Titel på värdpublikation29th European Signal Processing Conference, EUSIPCO 2021 - Proceedings
FörlagIEEE - Institute of Electrical and Electronics Engineers Inc.
Sidor1915-1919
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

Ämnesklassifikation (UKÄ)

  • Signalbehandling

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