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7.1 The z-Transform. Definition: Consider the DTFT: X(O) = Sall nx[n]e -jOn (7.1)Now consider a real number ? and the factor ?nThen X(z) = Sall nx[n] ?-n e -jOn = Sall nx[n]z-n Where z is the complex number ?e-jO .This is the two-sided z-transform.The one-sided z-transform has n=0,,?In t
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