Autocorrelation and Crosscorrleation

Started by amr hassaan August 15, 2007
Hi all,

I'm correlating segments of EEG and EOG records, more or less, these are sequences of discrete values showing the samples of both signals.
literature says that autocorrelating a rectangular window window results in a triangular shaped window, but I'm always having this triangular shaped output except after filteration!!
Does anybody have a justification for this?!

Thanks in advance..