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The Z-transform converts a discrete time-domain signal, which is a sequence of real or complex numbers, into a complex frequency-domain representation.

3
votes
1answer
So I have a system with the following inputs and outputs: \begin{align} x[n]&=\left( \frac12 \right)^{n}u[n] + 2^{n}u[-n-1]\\ y[n]&=6\left( \frac12 \right)^{n}u[n] - 6\left( \frac34 \right)^{n}u[n] \ …
asked Mar 26 '17 by Val9265
2
votes
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What is the $\mathcal Z$-transform of $\left(\left(-\frac{1}{3}\right)^n + \frac{1}{2}\right)^n \mu[n-2]$? Doing raw computations with large $n$ gives a sum of $0.6030$ which doesn't seem right, and …
asked Dec 21 '16 by Val9265