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How can i sample the function y(t) = sin(200πt) --> y[n] = sin(200πn)

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Md Naeemur Rahman
Md Naeemur Rahman on 23 Apr 2021
Answered: Pratyush Roy on 26 Apr 2021
a) using sampling rate 400 Hz
b) using sampling rate 100 Hz
c) using sampling rate 90 Hz
Over the interval [0; 5T ] (T=period ) and Also, draw a graph of the original function for each subplot.

Answers (1)

Pratyush Roy
Pratyush Roy on 26 Apr 2021
Hi,
The following code snippet might be helpful for generating discrete sequences under different sampling frequencies:
fs = 400 % It can be 100 or 90 Hz as well, depending on the application
n = 0:1/fs:5*T; % T is the period
y = sin(200*pi*n);
stem(y) %Creates a stem plot for the discrete signal. For a continuous plot, one can use plot(t) instead of stem(t)
Hope this helps!

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