Others‎ > ‎Labs‎ > ‎COS LAB‎ > ‎

F1: What the hell is signal sampling?

posted Mar 4, 2012, 4:29 AM by Neil Mathew   [ updated Mar 4, 2012, 4:29 AM ]

You got Analog signals and Digitial Signals.

While Analog signals are continuous waveforms, having the any possible value at any given time, 
a Digital Signal is one where it can have only one of the finite set of discrete values at  a given time.

So, when we want to sent a Analog Signal over a Digital Communication System, samples are required to be transmitted at periodic intervals. (Here, I understand Sample as a value like amplitude of the wave at a given time. ) This video made it clear:

Sampling & Reconstruction