UWFBTBOUNDS - Frame bounds of Undecimated WFBT

Usage

fcond=uwfbtbounds(wt,L);
[A,B]=uwfbtbounds(wt,L);
[...]=uwfbtbounds(wt);

Description

uwfbtbounds(wt,L) calculates the ratio \(B/A\) of the frame bounds of the undecimated filterbank specified by wt for a system of length L. The ratio is a measure of the stability of the system.

uwfbtbounds({w,J,'dwt'},L) calculates the ratio \(B/A\) of the frame bounds of the undecimated DWT (ufwt) filterbank specified by w and J for a system of length L.

uwfbtbounds(wt) does the same thing, but L is the length of the longest filter in the identical filterbank.

[A,B]=uwfbtbounds(...) returns the lower and upper frame bounds explicitly.

See wfbt for explanation of parameter wt and fwt for explanation of parameters w and J.

The function supports the following flags:

'sqrt'`(default),'noscale','scale'`

The filters in the filterbank tree are scaled to reflect the behavior of uwfbt and iuwfbt with the same flags.