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Comparison of wavelet transform and FFT methods in the analysis of EEG signals
1Department of Electric and Electronic Engineering, Dicle University, Diyarbakir, Turkey.
Journal of Medical Systems
|May 23, 2002
Abstract:
In this study, whether the wavelet transform method is better for spectral analysis of the brain signals is investigated. For this purpose, as a spectral analysis tool, wavelet transform is compared with fast Fourier transform (FFT) applied to the electroencephalograms (EEG), which have been used in the previous studies. In addition, the time-domain characteristics of the wavelet transform are also detected. The comparison results show that the wavelet transform method is better in detecting brain diseases.