Question: A linear time-invariant system with frequency response H(?) is excited with the periodic input,?suppose that we compute the N-point DFT Y(k) of the samples y(n),

A linear time-invariant system with frequency response H(?) is excited with the periodic input,?suppose that we compute the N-point DFT Y(k) of the samples y(n), 0 ? n ? N ? 1?of the output sequence. How is Y(k) related to H(?)?

xin)- -kN) ka-oc

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