Enhanced period-peak analysis of electro-encephalograms using a fast sinc function.
In an effort to reduce the memory space and processing time required by fast Fourier transforms, enhanced period-peak detection is investigated. The method is based on a combination of Fourier transforms and period-peak detection. The signal is considered as a train of truncated sinusoidal functions. Each truncated sinusoidal function is limited by two successive local extrema. The Fourier transform of the truncated sinusoidal function is a sinc function. The summation of these sinc functions yields an approximate frequency spectrum of the signal.
Ferdjallah
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Electrical Engineering Department, University of Texas at Austin 78712, USA.
Barr
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D000465:Algorithms; D004569:Electroencephalography / Q000379:methods*; D005583:Fourier Analysis; D006801:Humans; D012815:Signal Processing, Computer-Assisted