DocumentCode
1749392
Title
Multitaper estimation of bicoherence
Author
Birkelund, Yngve ; Hanssen, Ayred ; Powers, Edward J.
Author_Institution
Phys. Dept., Tromso Univ., Norway
Volume
5
fYear
2001
fDate
2001
Firstpage
3085
Abstract
The statistical properties for bicoherence estimation are shown to be strongly connected to the properties of the power- and bispectral estimator used. Data tapering will reduce spectral leakage and frequency smoothing will reduce the variance. It is shown that correct normalization is essential to ensure unbiased results. The multitaper approach is shown to be superior to other non-parametric estimators for bicoherence estimation
Keywords
coherence; smoothing methods; spectral analysis; statistical analysis; bicoherence estimation; bispectral estimator; data tapering; frequency smoothing; multitaper approach; normalization; power-estimator; spectral leakage; statistical properties; unbiased results; variance; Adaptive control; Bandwidth; Fourier transforms; Frequency dependence; Frequency estimation; Harmonic analysis; Physics; Programmable control; Smoothing methods; Spectral analysis;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location
Salt Lake City, UT
ISSN
1520-6149
Print_ISBN
0-7803-7041-4
Type
conf
DOI
10.1109/ICASSP.2001.940310
Filename
940310
Link To Document