Question: We wish to design an FIR lowpass filter satisfying the specifications 0.98 < H(e j ) < 1.02, 0 || 0.63, 0.15 <

We wish to design an FIR lowpass filter satisfying the specifications 

 0.98 < H(e) < 1.02,             0 ≤ |ω| ≤ 0.63π,

−0.15 < H(e) < 0.15,             0.65π ≤ |ω| ≤ π,

 by applying a Kaiser window to the impulse response hd[n] for the ideal discrete-time lowpass filter with cutoff ωc = 0.64π. Find the values of β and M required to satisfy this specification.

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