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EE 341 HW 7S Spring 2017-4.pdf

EE 341 HW 7S Spring 2017-4.pdf - EE 341 Discrete Time...

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EE 341 Discrete Time Linear Signals and Systems Problem Set #7 Solution Problem 1 (a)   7 0 3 1 1 2 1 1 2 1 1 6 j n X e x n     (c) Consider the inverse DTFT:   1 2 j j n x n X e e d   2 0 4 j X e d x (d)   7 3 1 1 1 2 1 1 2 1 1 2 n j n X e x n           Problem 2 (a) ? 1 [ ? ] = [4, 2, 0, 2] (b) ? 1 [ ? ] = [4, 2 − 2 ?, 2, 2 − 2 ?, 0, 2 + 2 ?, 2, 2 + 2 ? ] (c) DTFT: ?(𝑒 𝑗𝜔 ) = 2 + 𝑒 −𝑗𝜔 + 𝑒 −𝑗3𝜔 (d)
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