Consider the example of discrete time (DT) processing of continuous time (CT) si
ID: 2268038 • Letter: C
Question
Consider the example of discrete time (DT) processing of continuous time (CT) signal we discussed in Friday lecture, where we had a low- pass filter DT LTI system. Suppose that the input r(t) and the DT LTI system (G.e.. He) are fixed to the examples we used in the lecture. What would happen to the output yr (t) if the sampling frequency grows to infinity? (a) The value of yr(t) at all time points will converge to zero. (b) The value of yr (t) at all time points will grow to infinity. (c) yr () will become r(t)Explanation / Answer
Where the sampling frequency satisfies the Nyquist criteria (fs>=2fm) the aliasing effect reduces and reproduction of message signal is possible...
If sampling frequency increases the exact reproduction of message signal is possible.so fs is going to infinity the exact reproduction of message signal occured so output equal to input...y(t)=x(t).