How do I plot fourier transform signals in Matlab
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To find Fourier transform (spectrum) of the following signals using MATLAB command “fourier”. To make a plot of signal and spectrum (modulus)
f(t)=e^(-|t| )*cos(20t)
2 Comments
Star Strider
on 15 Apr 2021
Replace:
e^(-|t| )
with:
exp(-|t| )
then put a multiplication operator vetween 20 and ‘t’:
cos(20*t)
and go from there.
Accepted Answer
Star Strider
on 15 Apr 2021
f = @ (t) exp(-abs(t)).*cos(20*t);
figure
fplot(f)
for the Symbolic Math Toolbox, this becomes:
syms t
f(t) = exp(-abs(t))*cos(20*t);
I leave the rest to you.
3 Comments
Star Strider
on 16 Apr 2021
My pleasure!
If my Answer helped you solve your problem, please Accept it!
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