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Walsh Versus Fourier Estimators of the EEG Power Spectrum
Journal article

Walsh Versus Fourier Estimators of the EEG Power Spectrum

Warren D Smith
IEEE transactions on biomedical engineering, Vol.BME-28(11), pp.790-793
11/1981
DOI: https://doi.org/10.1109/TBME.1981.324770
Handle:
https://hdl.handle.net/20.500.12741/rep:5425
PMID: 7319519

Abstract

Spectral shape Fast Fourier transforms Computerized monitoring Discrete Fourier transforms Brain modeling Electroencephalography Frequency estimation Biomedical measurements Discrete wavelet transforms State estimation
Walsh-based discrete algorithms offer a fast, simple alternative to Fourier methods for estimating EEG power spectra, but their performance has been criticized. Previous comparisons of Fourier and Walsh estimators are reexamined, and they are compared experimentally, on simulated EEG. The evidence suggests that they should perform comparably for EEG monitoring.

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