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Periodicty - Sampling of a periodic signal

  1. Sep 15, 2012 #1
    periodicty -- Sampling of a periodic signal...

    I have a doubt..is a signal which is sampled from a periodic signal also periodic?if so then is there a relation beyween the time period of the two?
  2. jcsd
  3. Sep 15, 2012 #2
    Re: periodicty

    In general the sampled signal is not periodic.
    However if the sampling frequency is an exact multiple of a periodic sampled signal then it will be periodic.

    What do you understand by a periodic signal?
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