(Periodic signals)
(Discrete Time)
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==Discrete Time==
 
==Discrete Time==
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===Periodic Signal===
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A periodic discrete time signal is one that satisfies :
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<math> x[n] = x[n + A] </math>
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For a given integer value 'A'
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<center>[[Image

Revision as of 04:55, 5 September 2008

Continuous Time

Periodic signals

A periodic signal is one that for a given real number "a": $ x(t) = x(t+a) $

Ccadwall-periodicwaves ECE301Fall2008mboutin.png

http://en.wikibooks.org/wiki/Signals_and_Systems/Periodic_Signals


Non Periodic signals

Non-periodic signals are those which no value of "a" satisfies the following equation. $ x(t) = x(t+a) $

Ccadwall-audio signal ECE301Fall2008mboutin.png

http://ac3filter.net/files/docs/ac3filter_1_30b/loudness_eng.html

Discrete Time

Periodic Signal

A periodic discrete time signal is one that satisfies :

$ x[n] = x[n + A] $

For a given integer value 'A'

[[Image

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