FILTERBANKWIN - Compute set of filter bank windows from text or cell array

Usage

[g,info] = filterbankwin(g,a,L);

Description

[g,info]=filterbankwin(g,a,L) computes a window that fits well with time shift a and transform length L. The window itself is as a cell array containing additional parameters.

The window can be specified directly as a cell array of vectors of numerical values. In this case, filterbankwin only checks assumptions about transform sizes etc.

[g,info]=filterbankwin(g,a) does the same, but the windows must be FIR windows, as the transform length is unspecified.

filterbankwin(...,'normal') computes a window for regular filterbanks, while filterbankwin(...,'real') does the same for the positive-frequency only filterbanks.

The window can also be specified as cell array. The possibilities are:

{'dual',...}

Canonical dual window of whatever follows. See the examples below.

{'realdual',...}

Canonical dual window for a positive-frequency filterbank of whatever follows. See the examples below.

{'tight',...}

Canonical tight window of whatever follows. See the examples below.

{'realtight',...}

Canonical tight window for a real-valued for a positive frequency filterbank of whatever follows.

The structure info provides some information about the computed window: