Jerry Avins <[email protected]> wrote in news:
[email protected]:

>
> It approximated linear phase better than most analog filters, but it
> isn't very good compared to symmetric FIRs. The rolloff can be
> disappointing. http://en.wikipedia.org/wiki/Bessel_filter

The man wants an anti aliasing filter. I suppose you could sample fast
enough so the phase in the frequency band of interest is close enough to
zero, and then do whatever FIR/decimation you want to, but I assumed we
were still in the analog world.

--
Scott
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