[time-nuts] Calculate spectral content from a series of zero crossing time stamps?

[Tijd Dingen]

----- Original Message ----
From: jimlux <jimlux at earthlink.net>
To: time-nuts at febo.com
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