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Results tagged with z-transform
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user 18328
The Z-transform converts a discrete time-domain signal, which is a sequence of real or complex numbers, into a complex frequency-domain representation.
1
vote
1
answer
91
views
What is the right way to calculate the inverse Z-transform of $zX(z^{-1})$
say the signal $x(n)$ has the z transform $X(z)$ and there is signal $x_1(n)$ that
$X_1(z)=zX(z^{-1})$
I tried 2 different approach to get the relationship between $x(n)$ and $x_1(n)$ and the resul …
- 177
0
votes
3
answers
418
views
What is the transfer function of this block diagram
I and my friend have different answer for this block diagram
Mine:
$$y[n] = -\frac23x[n] + x[n-1] -\frac12[n-2]$$
Hence
$$H(z) = \frac{1}{-\frac23 + z^{-1} -\frac12z^{-2}}$$
My friend:
$$q[n]=x[ …
- 177