[Numpy-discussion] chirp-z

Matthieu Brucher matthieu.brucher at gmail.com
Sun May 27 03:41:52 EDT 2007


Sorry, not cross-correlation, convolution, too early in the morning here...

2007/5/27, Matthieu Brucher <matthieu.brucher at gmail.com>:
>
> Hi,
>
> Isn't the chirp transform only two cross-correlations ? And for a fast
> one, there is a module in SciPy, and I think that kind of operation belongs
> more to Scipy than Numpy ;)
>
> Matthieu
>
> 2007/5/27, Charles R Harris <charlesr.harris at gmail.com>:
> >
> > All,
> >
> > I have been looking around for chirp-z code with a useable license.
> > There is the original fortran version by Rader et. al. out there, as well as
> > a package from FreeBSD at
> > http://ftp2.at.freebsd.org/pub/FreeBSD/distfiles/fxt-2006.12.17.tgz. The
> > latter is c++ and relies on function signatures to distinguish various
> > functions with the same name, but looks pretty easy to translate. I note
> > that we could probably use an fast_correlate also. Is there any interest in
> > adding these to the fft pack? Or do they properly belong in scipy?
> >
> > Chuck
> >
> > _______________________________________________
> > Numpy-discussion mailing list
> > Numpy-discussion at scipy.org
> > http://projects.scipy.org/mailman/listinfo/numpy-discussion
> >
> >
>
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