Hi all!

I have noticed that during the FFT process the phase of the Fourier transformed data is between [-pi,pi] with rapid oscillation, which means that the phase distribution is strongly modified compared with the phase of the analytic fourier transforming. (The phase of the analytic Fourier transformed data is a smoothly varying function). Can anybody tell me a little more about the theoretical background of this phenomena (or drop me a link about this subject)? :confused:

Thank you!