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Mike Raiford wrote:
> Strangely enough the other day I was experimenting with windowing in a
> Fourier transform to analyze a rather complex FSK signal (Trying to get
> a grip on how the signal worked ...) The major problem I had with it was
> the fact that there was significant smearing between samples, that I
> couldn't tell when the frequencies were changing, not only that it made
> it exceedingly difficult to determine what the frequencies were. I tried
> various windowing functions and window sizes.
Yeah, Scotts idea of using a bank of bandpass filters is probably the
way to go for that. Split the signal into several dozen signals, each
containing only a narrow band of frequencies. See how much energy each
signal has.
(I have no idea how you measure signal energy...)
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