Periodicty - Sampling of a periodic signal

[tina_singh]

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?

 

[Studiot]

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?