Article View: comp.dsp
Article #1778Re: 180 deg phase shift
From: Bruce Karsh
Date: Fri, 10 May 1991 20:11
Date: Fri, 10 May 1991 20:11
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In article jfa0522@hertz.njit.edu (john f andrews ece) writes: >Why do we keep tagging onto this thread? "any signal ..with a fourier >ransform" implies any periodic signal....so why the beef? Let it go! Because what you said is wrong. It is simply not the case that the existence of a Fourier transform of a function or a series implies periodicity. The existence of a Fourier sequence implies periodicity, but that is another matter. The Fourier transform exists for non-periodic functions which are absolutely summable. Bruce Karsh karsh@sgi.com
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!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: <103151@sgi.sgi.com> Date: 10 May 91 20:11:36 GMT References: <1991May9.160115.3494@cpsc.ucalgary.ca> <1991May09.192740.4165@bmerh2.bnr.ca> <1991May10.153753.22596@njitgw.njit.edu> Sender: guest@sgi.sgi.com Reply-To: karsh@trifolium.sgi.com (Bruce Karsh) Organization: Silicon Graphics, Inc., Mountain View, CA Lines: 14