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Article #131

Energy within a Digitized Pulse

#131
From: Jeffery Scott Sloka
Date: Thu, 23 Jul 1992 12:44
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Howdy.  I have two questions which I can't seem to nail down properly and I'm humbly asking for your expertise.

1.  The energy of a continuous time signal is just the integral of the square of the signal.  For a digitized signal, is it true that the energy contained is just the sum of the squares of each point?

2.  The attenuation of a signal is related to the amount that the signal decreases.  If the signal maintains its shape, is the attenuation the ratio of the two energies or is it the square root of the ratio of the energies?

Sorry to ask such basic questions but I could not find a text to confirm any of these questions in the discrete time domain.  Many thanks in advance for your replies.

	-Scott
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Path: arc1-ca.pugleaf.net!sparky!uunet!usc!cs.utexas.edu!torn!watserv1!ritchie.waterloo.edu!jssloka
From: jssloka@ritchie.waterloo.edu (Jeffery Scott Sloka)
Subject: Energy within a Digitized Pulse 
Message-ID: <BruE1t.A8L@watserv1.waterloo.edu>
Keywords: Attenuation, Energy 
Sender: news@watserv1.waterloo.edu
Organization: University of Waterloo
Date: Thu, 23 Jul 1992 12:44:16 GMT
Lines: 10