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  3. problem 4 a causal firstorder digital filter is described by...

Question: problem 4 a causal firstorder digital filter is described by...

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Problem 4) A Causal first-order digital filter is described by the system function 1+az a) For a-0.5 and b0.6, sketch the zero-pole pattern. Is the system stable or not? Explain the reason shortly. 泌) Determine bo, sothatthemaximumvalueofpre씨isequalto1. (ノ) Sketch the magnitude response |H(e and phase spectrum θ(e) of the filter obtained in part (b) roughy
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