Question: Determine the unit sample response {h(n)} of a linear-phase FIR filter of length M = 4 for which the frequency response at = 0 and

Determine the unit sample response {h(n)} of a linear-phase FIR filter of length M = 4 for which the frequency response at ω = 0 and ω = π/2 is specified as
Hr(0) = 1 Hr(π/2) = ½

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