DocumentCode
3459428
Title
Fourier series applied to oscillatory potentials
Author
Alfieri, Rinaldo ; Albuisson, Eliane ; Boire, Jean-Yves
Author_Institution
Dept. of Biomath., Fac. of Med., Clermont-Ferrand, France
fYear
1988
fDate
4-7 Nov. 1988
Firstpage
1177
Abstract
The authors want to isolate e-waves using their Fourier spectrums. The electroretinograms are averaged. A 4 Hz flash stimulus is used and a first spectral set (the fundamental´s amplitude at 4 Hz is taken as reference) is determined. Next, the e-waves are suppressed (linear interpolation) and a second spectral set is determined. e-wave characteristic spectrums are obtained from the difference between sets (linear operation). The true period of e-waves, in this case 7 ms, is determined theoretically. The energetic contribution of each harmonic is given.<>
Keywords
Fourier transform spectra; bioelectric potentials; signal processing; 4 Hz; Fourier series; e-waves; electroretinograms; flash stimulus; harmonic energy; linear interpolation; oscillatory potentials; spectral set;
fLanguage
English
Publisher
ieee
Conference_Titel
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location
New Orleans, LA, USA
Print_ISBN
0-7803-0785-2
Type
conf
DOI
10.1109/IEMBS.1988.94846
Filename
94846
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