Article View: comp.dsp
Article #1777Re: 180 deg phase shift
From: Bruce Karsh
Date: Fri, 10 May 1991 12:55
Date: Fri, 10 May 1991 12:55
13 lines
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947 bytes
>>Given *ANY* signal x(n) with Fourier Transform X(w) >Really? You surely mean _periodic_ signal. A signal doesn't have to be periodic to have a Fourier transform. Any sequence x(n) that is absolutely summable (i.e., the sum of the absolute values is bounded) has a Fourier transform given by: inf X(w) = sum x(n)e^(-jwn) n = -inf Bruce Karsh karsh@sgi.com
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arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!wuarchive!zaphod.mps.ohio-state.edu!mips!sgi!karsh@trifolium.esd.sgi.comReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!wuarchive!zaphod.mps.ohio-state.edu!mips!sgi!karsh@trifolium.esd.sgi.com From: karsh@trifolium.esd.sgi.com (Bruce Karsh) Newsgroups: comp.dsp Subject: Re: 180 deg phase shift Message-ID: <103038@sgi.sgi.com> Date: 10 May 91 12:55:30 GMT References: <1991May9.160115.3494@cpsc.ucalgary.ca> <1991May09.192740.4165@bmerh2.bnr.ca> Sender: news@sgi.sgi.com Reply-To: karsh@trifolium.sgi.com (Bruce Karsh) Organization: Silicon Graphics, Inc., Mountain View, CA Lines: 13