Article View: comp.dsp
Article #1126Kaiser Window Design (was Digital Filters)
From: steele Richard A. Steele
Date: Sat, 17 Nov 1990 21:01
Date: Sat, 17 Nov 1990 21:01
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2094 bytes
In article <9360014@hplsla.HP.COM> bryanh@hplsla.HP.COM (Bryan Hoog) writes:
>
> In a college DSP class (YEARS ago!), we used this method, and, then
> (I think; this is where my memory gets hazy) we weighted the resulting
> coefficients with a Hamming window. I remember the teacher saying
> something like "A Hamming window usually works best", but couldn't explain
> what was so "magic" about the Hamming window for FIR filter design.
>
> -Bryan
I've done something similar, except with a Kaiser window instead
of the Hamming; the effect is similar, as both methods are
quite easy to do.
See, for example, Oppenheim and Schafer "Discrete Time Signal
Processing" pages 444-462.
I believe the Parks-McClellan algorithm is more optimal, but it
is more difficult to implement (I think; my memory is fuzzing).
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!yale!mintaka!think.com!zaphod.mps.ohio-state.edu!julius.cs.uiuc.edu!ux1.cso.uiuc.edu!news.cs.indiana.edu!noose.ecn.purdue.edu!en.ecn.purdue.edu!steele@en.ecn.purdue.edu From: steele@en.ecn.purdue.edu@en.ecn.purdue.edu (Richard A. Steele) Newsgroups: comp.dsp Subject: Kaiser Window Design (was Digital Filters) Message-ID: <1990Nov17.210143.20703@en.ecn.purdue.edu> Date: 17 Nov 90 21:01:43 GMT References: <1990Nov15.121559.11290@watserv1.waterloo.edu> <9360014@hplsla.HP.COM> Organization: Purdue University Lines: 31