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Revision as of 14:31, 12 September 2013
Contents
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.)
You will receive feedback from your instructor and TA directly on this page. Other students are welcome to comment/discuss/point out mistakes/ask questions too!
Answer 1
Yiran:
x[n] = sin(2*pi/100*n)= 1/(2*j)*(exp(j*2*pi/100*n)-exp(-j*2*pi/100*n))
X(w) = \sum \left( \right)
Answer 2
Write it here.
