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Article #10234Re: A question about the Nyquist theorm
From: Kevin D. Quitt
Date: Mon, 18 Feb 1991 22:25
Date: Mon, 18 Feb 1991 22:25
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In article <1759@manta.NOSC.MIL> north@manta.NOSC.MIL (Mark H. North) writes:
>
>Sorry to answer my own post but I take that last paragraph back. I think
>you are wrong after all. Look at it this way -- suppose I tell you I'm
>going to send you one of two signals, either 1 volt 60 Hz or a DC voltage
>between -1 and 1 volt. You may sample at 120 Hz. You get all identical
>samples at 0.5 volts. Which signal did I send?
You've reduced this past absurdity. If I know it *must* be one or the
other, a single measure will almost always be sufficient. The discussion
revolves around reconstructing *any* waveform (requires >2x sampling).
--
_
Kevin D. Quitt demott!kdq kdq@demott.com
DeMott Electronics Co. 14707 Keswick St. Van Nuys, CA 91405-1266
VOICE (818) 988-4975 FAX (818) 997-1190 MODEM (818) 997-4496 PEP last
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!thunder.mcrcim.mcgill.edu!snorkelwacker.mit.edu!paperboy!think.com!sdd.hp.com!usc!srhqla!demott!kdq From: kdq@demott.com (Kevin D. Quitt) Newsgroups: sci.electronics,sci.physics Subject: Re: A question about the Nyquist theorm Message-ID: <1991Feb18.222519.12841@demott.com> Date: 18 Feb 91 22:25:19 GMT References: <D04gX2w163w@shark.cs.fau.edu> <1758@manta.NOSC.MIL> <1759@manta.NOSC.MIL> Organization: DeMott Electronics Co., Van Nuys CA Lines: 18