A spectral analysis program for the processing of neuro-electric data

The Spectral Analysis Program is designed to perform the following kinds of spectral analysis, using the Cooley-Tukey Fast Fourier Transform Algorithm: cross correlation, cross power spectrum, Fourier transform, inverse Fourier transform, and double Fourier transform (the process of transforming two real functions simultaneously). These operations are performed on two blocks of core that can be filled through time-sequential sampling of an external analog signal or from previously sampled data that have been stored on DECtape. Through the use of nine Teletype commands, the user can manipulate input and output and select a particular type of spectral analysis. Output may be displayed on a 30D scope stored on DECtape or turned into hard copy by a Calcomp plotter used for processing neuroelectric data at the Stanley Cobb Laboratories for Psychiatric Research.