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Non-uniform FFT? [message #75680] Tue, 05 April 2011 09:54
Eric Hudson is currently offline  Eric Hudson
Messages: 19
Registered: June 2006
Junior Member
Hi,

I was wondering if anyone has implemented a non-uniform FFT algorithm
in IDL. We have non-regularly spaced real space data that we need to
Fourier transform, and it is painfully slow to do the discrete
transform. I have found several c algorithms online (e.g.
http://www-user.tu-chemnitz.de/~potts/nfft/download.php) but before
launching into either converting them or figuring out how to run C
code from within IDL thought maybe someone else had already gone to
the trouble.

Thanks,
Eric

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