X(z). X(z) = ∑ k αkz−k. 為. X(z) = ∑ x[n]z−n, x[n] = αn. Chia-Ping Chen z 轉換. Page 23. Example. X(z) = log(1 + az−1), |z| > a. 為 log(1 + t) =.
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