3.0

3.0 | 1 rating Rate this file 40 Downloads (last 30 days) File Size: 2.88 KB File ID: #35053
image thumbnail

Uniform Filter Bank

by

 

12 Feb 2012 (Updated )

This function can be used to design a uniform filter bank with M subbands.

| Watch this File

File Information
Description

This function can be used to design a uniform filter bank (with M analysis and M synthesis filters) so that the perfect reconstruction is almost achieved. The method is based on the optimization technique proposed in [1].

M= Number of subbands
m= A positive integer

[analysis_filters,synthesis_filters] are analysis and synthesis filters'
coefficients of the designed filter bank (each row is devoted to one filter). The
length of all filters is 2*(m*M). The amplitude response of the analysis filters will be shown at the end.

Example:
[analysis_filters,synthesis_filters]=PR_Nguyen(5,4)

Reference:
[1] T.Q. Nguyen, “Near-Perfect-Reconstruction Pseudo-QMF Banks”, IEEE
Transactions on Signal Processing, Vol. 42, No.1, 1994.

To find other Matlab functions about filter design, please visit
http://www.ece.uvic.ca/~imanmoaz/index_files/index1.htm

Required Products Filter Design Toolbox
Optimization Toolbox
Signal Processing Toolbox
Symbolic Math Toolbox
MATLAB
MATLAB release MATLAB 7.2 (R2006a)
Tags for This File   Please login to tag files.
Please login to add a comment or rating.
Comments and Ratings (1)
24 Jul 2013 ebrahim

i couldn't run it! it seems to be crashed!

Updates
11 Oct 2012

some changes in comments

Contact us