Cross-spectrum and coherence function estimation using time-delayed Thomson multitapers
Publikation/Tidskrift/Serie: Acoustics, Speech and Signal Processing (ICASSP), 2011 IEEE International Conference on
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
- 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)