Translations:Feedback filters/22/en

Next let us show that the feedback filter is stable only for the minimum-delay case. The Z-transform of the (T + 1)-length wavelet $\left({1\ ,\ 0,\ 0,\ \dots \ 0,\ }c\right)$ is $1+cZ^{T}$. Therefore, the transfer function H(Z) of the feedback filter is the reciprocal of the Z-transform of the wavelet $\left({1\ ,\ 0,\ 0,\ \dots \ 0,\ }c\right)$.