Hây xác định y(n) biết Y ( Z )   − Z − n 0

$y\left(n\right)=u\left(n-n{}_0\right)$

$\text{y}\left(\text{n}\right)=\text{n}{}_0.\delta \left(\text{n}\right)$

$y\left(n\right)=\delta \left(n+n{}_0\right)$

$y\left(n\right)=\delta \left(n-n{}_0\right)$