Cross-spectrum and coherence function estimation using time-delayed Thomson multitapers

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2 Citations (SciVal)

Abstract

An idea is presented where multitapers are extracted from a known cross-spectrum and applied for estimation of the co- herence function. An important property of the extracted win- dows are the time-delay between left and right tapers. There- fore, time-delayed Thomson multitapers are also proposed as an approximation. Simulations are performed using differ- ent linear filters as well as disturbing white noise and com- parisons are made with the results of the usual Thomson and Welch methods. An example of estimation of EEG coherence is also shown.
Original languageEnglish
Title of host publicationAcoustics, Speech and Signal Processing (ICASSP), 2011 IEEE International Conference on
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Pages4240-4243
Number of pages4
ISBN (Print)978-1-4577-0538-0 (online), 978-1-4577-0538-0 (print)
DOIs
Publication statusPublished - 2011
Event2011 International Conference on Acoustics, Speech and Signal Processing (ICASSP) - Prague
Duration: 2011 May 222011 May 27

Publication series

Name
ISSN (Print)1520-6149

Conference

Conference2011 International Conference on Acoustics, Speech and Signal Processing (ICASSP)
Period2011/05/222011/05/27

Subject classification (UKÄ)

  • Probability Theory and Statistics

Keywords

  • multiple window
  • multitaper
  • coherence function
  • cross- spectrum

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