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Uniform Filter Bank

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4.5 | 4 ratings Rate this file 14 Downloads (last 30 days) File Size: 2.88 KB File ID: #35053 Version: 1.4
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Uniform Filter Bank

by

Iman (view profile)

 

12 Feb 2012 (Updated )

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

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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)

https://www.youtube.com/watch?v=pMLnq_7mjFc&feature=youtu.be

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)
MATLAB Search Path
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Comments and Ratings (5)
04 Oct 2016 Iman

Iman (view profile)

Thank you, priyatam.

Comment only
04 Oct 2016 priyatam kumar

excellent

17 May 2016 Mikhail Yurkov  
15 Mar 2016 Seyed Amin Hejazi  
24 Jul 2013 ebrahim

ebrahim (view profile)

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

Updates
11 Oct 2012 1.4

some changes in comments

08 Nov 2015 1.4

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