Translations:Feedback filters/23/en

At this point, we will introduce the concepts of minimum delay and maximum delay. A thorough discussion of these concepts is given in Chapter 7. A wavelet is said to be a minimum-delay wavelet if it is front loaded, whereas it is said to be a maximum-delay wavelet if it is back loaded. The front coefficient in the wavelet $\left({1\ ,\ 0,\ 0,\ \dots \ 0,\ }c\right)$ is 1, and the back coefficient is c. Because all the other coefficients are zero, this wavelet is easy to clarify. If $1{>|}c{|}$, then the front coefficient is greater in magnitude than the back coefficient, so the wavelet is front-loaded and hence minimum delay. If ${\rm {If|}}c{|>}1$ then the back coefficient is greater in magnitude than the front coefficient, so the wavelet is back-loaded and hence maximum delay.