Search Results for "frequency analysis"

This program for Scilab searches for primary peaks in the segments of brainwave signal spectrum which are much above the signal spectrum average. Brainwave segments of 1 s are Fourier transformed, thresholded and merged if contiguous. Selected segments are drawn in time domain, frequency domain and a narrow-band analysis at 75 Hz is attempted. This program should detect strong external signals in brainwave recordings. Weak signals are not detected. This program requires the "edf2ascii" utility, a set of EDF files with brainwave recordings in the "EDF/" directory and two empty destination directories named "founds/" and "losts/". ...