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| − | <math> x[n] = 1/(2*j)*(exp(j*2*pi/100*n)-exp(-j*2*pi/100*n)) <\math> | + | <math>x[n] = 1/(2*j)*(exp(j*2*pi/100*n)-exp(-j*2*pi/100*n))<\math> |
Revision as of 15:58, 12 September 2013
Practice Problem on Discrete-time Fourier transform computation
Compute the discrete-time Fourier transform of the following signal:
$ x[n]= \sin \left( \frac{2 \pi }{100} n \right) $
(Write enough intermediate steps to fully justify your answer.)
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Answer 1
$ x[n]=sin(2pi/100*n) $
$ x[n] = 1/(2*j)*(exp(j*2*pi/100*n)-exp(-j*2*pi/100*n))<\math> <math> X(w) = \sum \left( \right) <\math> ===Answer 2=== Write it here. ===Answer 3=== ---- [[2013_Fall_ECE_438_Boutin|Back to ECE438 Fall 2013]] $
