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Article #1313Re: A simple question
From: Jeff Warner
Date: Fri, 02 Oct 1992 22:28
Date: Fri, 02 Oct 1992 22:28
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mchung@ee.tamu.edu (Maranatha Chung) writes: From: mchung@ee.tamu.edu (Maranatha Chung) Organization: Texas A&M University Sorry if this has been asked before. Why is an odd order FIR filter better than an even order FIR filter? Thanks. It is not, both are equally good. The only difference is the group delay. For an odd length fir filter the group delay is (N-1)/2, note that this results in a integer number of sample delays. For an even length filter the group delay is also (N-1)/2, but the delay is NOT integral. If this makes even length filters worst that odd then I guess this answers your question... Jeff Warner
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Newsgroups: comp.dsp Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!sol.ctr.columbia.edu!usc!venice!gumby.dsd.trw.com!deneva!deneva!warner From: warner@rhoads.etdesg.trw.com (Jeff Warner) Subject: Re: A simple question In-Reply-To: mchung@ee.tamu.edu's message of Fri, 2 Oct 1992 20:36:21 GMT Message-ID: <WARNER.92Oct2222831@rhoads.etdesg.trw.com> Sender: news@deneva.sdd.trw.com Organization: TRW, Inc., Redondo Beach... References: <1992Oct2.203621.5649@tamsun.tamu.edu> Distribution: usa Date: 2 Oct 92 22:28:31 Lines: 18