[sdiy] Frequency content of transients

Bernard Arthur Hutchins, Jr bah13 at cornell.edu
Mon Apr 19 03:03:18 CEST 2021


 cheater cheater asked:



“Would you mind walking me through either where to find it in a book or how to calculate it? I would appreciate that. I haven't read any books on FFT so I'd be lost. But I do understand it (mostly).”
That’s a very long walk!    First you need to understand (that there are) the four ”animals” in Fourier Land: FT, FS, DTFT, and DFT=FFT. Begin here:

http://electronotes.netfirms.com/AN410.pdf

-Bernie

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