By Topic

Non-uniform filter bank design using modified window functions

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
S. Anurag ; PDPM Indian Institute of Information Technology Design and Manufacturing, Jabalpur, MP-482005, India ; A. Kumar

An iterative method for the design of the non-uniform filter banks (NUFB) proposed by Soni et al is examined and improved by designing the prototype filters using the modified window such as Kaiser, Cosh and Exponential. These windows are modified by adding third parameter (ρ) which improves the spectral characteristic of the window in terms of smaller ripple ratio (RR), the wider main lobe width with improved side lobe roll-off ratio (SR). In this method, the cut-off frequency is varied iteratively in order to adjust the filter coefficients so that the reconstruction error is optimized to zero. Several design examples are included to demonstrate the efficacy of the modified window functions. A comparative study of performance of the different modified windows for designing non-uniform filter bank is made in terms of the reconstruction error, computational (CPU) time, and number of iteration (NOI). Finally, the modified windows are exploited for sub-band coding of electrocardiogram (ECG) signals.

Published in:

Computational Intelligence and Signal Processing (CISP), 2012 2nd National Conference on

Date of Conference:

2-3 March 2012