[SciPy-dev] complex-value remez?
Charles R Harris
Fri Nov 7 09:55:33 CST 2008
On Fri, Nov 7, 2008 at 6:17 AM, Neal Becker <firstname.lastname@example.org> wrote:
> Charles R Harris wrote:
> > On Thu, Nov 6, 2008 at 8:19 PM, Neal Becker <email@example.com> wrote:
> >> I see some posts from 2003 about complex remez. Any news?
> >> http://osdir.com/ml/python.scientific.devel/2003-02/msg00008.html
> > That would be me. I have a python version sitting around somewhere and
> > some experiments on the roundoff error for various implementations, but
> > haven't done much since because I haven't needed it except for the one
> > project.
> > Chuck
> If it's usable I'd be very interested.
Mind, it wasn't a general case program, it just generated complex, Hermitean
coefficients for a filter whose passband could be specified right up to the
sampling frequency (twice the Nyquist). I used it to design a decimating
filter since the aliasing is much easier to deal with when the negative
frequencies aren't there.
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