ENHANCED PERIOD PEAK ANALYSIS OF ELECTRO-ENCEPHALOGRAMS USING A FAST SINE FUNCTION

In an effort to reduce the memory space and processing time required b y fast Fourier transforms, enhanced period-peak detection is investiga ted. The method is based on a combination of Fourier transforms and pe riod-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 sine function. The summation of these sine fu nctions yields an approximate frequency spectrum of the signal.