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

Publiceringsår: 2011
Språk: Engelska
Sidor: 4240-4243
Publikation/Tidskrift/Serie: Acoustics, Speech and Signal Processing (ICASSP), 2011 IEEE International Conference on
Dokumenttyp: Konferensbidrag
Förlag: IEEE--Institute of Electrical and Electronics Engineers Inc.


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.


  • Probability Theory and Statistics
  • multiple window
  • multitaper
  • coherence function
  • cross- spectrum


2011 International Conference on Acoustics, Speech and Signal Processing (ICASSP)
  • Stochastics in Medicine-lup-obsolete
  • Statistical Signal Processing Group
  • ISSN: 1520-6149
  • ISBN: 978-1-4577-0538-0 (online)
  • ISBN: 978-1-4577-0538-0 (print)

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