Question: For the system in Figure P2.45-1, determine the output y[n] when the input x[n] is ?[n] and H(ej?) is an ideal lowpass filter as indicated,

For the system in Figure P2.45-1, determine the output y[n] when the input x[n] is ?[n] and H(ej?) is an ideal lowpass filter as indicated, i.e.,

1, ll < x/2. 0. 1/2 < l@l < n. H(el") =

1, ll < x/2. 0. 1/2 < l@l < n. H(el") = (-1)"w[n] (-1)" w[n] H(e) x[n] yln] |H(e") ... -27 277 FIN

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