----- Original Message ----
From: jimlux <[email protected]>
To: [email protected]
Sent: Tue, February 8, 2011 4:00:43 PM
Subject: Re: [time-nuts] Calculate spectral content from a series of zero
crossing time stamps?
> The Chirp-z transform (Bluestein) is also useful when you want a small range
> of
>frequencies at
> higher resolution, but since it relies on a fast convolution of the whole
> data
>set, it's more
> computationally intensive than a straight FFT.
> I ran across a nice explanation of how it works and why it's useful the other
>day
> http://www.katjaas.nl/chirpZ/chirpZ.html
For another look at zero padding in one domain to interpolate in the other
domain, this one
might be of interest:
http://www.dspguru.com/dsp/howtos/how-to-interpolate-in-time-domain-by-zero-padding-in-frequency-domain
> (if you want some ancient FORTRAN IV code for this, I've probably got a
> listing
>in a box out in the garage from the 70s)
Does this box also happen to contain verilog code for it?
regards,
Fred
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