UFILTERBANK Apply Uniform filterbank
Usage: c=ufilterbank(f,g,a);
UFILTERBANK(f,g,a) applies the filter given in g to the signal
f. Each subband will be subsampled by a factor of a (the
hop-size). If f is a matrix, the transformation is applied to each
column.
The filters g must be a cell-array, where each entry in the cell
array corresponds to a filter.
If f is a single vector, then the output will be a matrix, where each
column in f is filtered by the corresponding filter in g. If f is
a matrix, the output will be 3-dimensional, and the third dimension will
correspond to the columns of the input signal.
The coefficients c computed from the signal f and the filterbank
with windows g_m are defined by
L-1
c(n+1,m+1) = sum f(l+1) * g_m (an-l+1)
l=0
References:
H. Boelcskei, F. Hlawatsch, and H. G. Feichtinger. Frame-theoretic
analysis of oversampled filter banks. Signal Processing, IEEE
Transactions on, 46(12):3256--3268, 2002.
Url: http://ltfat.github.io/doc/filterbank/ufilterbank.html
See also: ifilterbank, filterbankdual.
Package: ltfat