Following are four z-transforms. Determine which ones could be the z-transform of a causal sequence. Do not
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Following are four z-transforms. Determine which ones could be the z-transform of a causal sequence. Do not evaluate the inverse transform. You should be able to give the answer by inspection. Clearly state your reasons in each case.
Transcribed Image Text:
(1-z)2 (a) (1 – { 1) (z - 1)2 (b) († - 2) (2 - )* (c) (: - !)" (:- 4) (: - !)* (d)
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Related Book For
Discrete Time Signal Processing
ISBN: 978-0137549207
2nd Edition
Authors: Alan V. Oppenheim, Rolan W. Schafer
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