A non-linear method for estimating the alpha generators from an EEG over the scalp
Wang, G.; Takigawa, M.
Frontiers of Medical and Biological Engineering the International Journal of the Japan Society of Medical Electronics and Biological Engineering 4(3): 169-178
1992
ISSN/ISBN: 0921-3775 PMID: 1419916 Document Number: 404717
A method is developed to estimate the frequency feature of alpha generators from EEG signals of different derivation. This method is based on principal component analysis and a constrained non-linear optimization technique. Results of the method gives a variation range of the power spectrum. Experimental results for estimating the generator spectra of the grain alpha activity in anterior and posterior regions over the scalp are shown. Finally, the noise problem with this method is also discussed.