Cart (Loading....) | Create Account
Close category search window

Fixed-point error analysis of two-channel perfect reconstruction filter banks with perfect alias cancellation

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
$31 $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)
Usevitch, B.E. ; Dept. of Electr. & Comput. Eng., Texas Univ., El Paso, TX, USA ; Betancourt, C.L.

This paper studies the effects of fixed-point arithmetic in two-channel perfect reconstruction (PR) filter banks. Practical implementations of filter banks often require scaling of coefficients and differing binary word sizes to maintain dynamic range. When scaling is used with fixed precision arithmetic, the perfect alias cancellation (PAC) and PR constraints no longer hold. The main contribution of this paper is the derivation of constraints whereby PAC is maintained, even when coefficients are scaled and when the analysis and synthesis filter banks use different binary word lengths. Once PAC is established, the fixed-point effects on PR properties can be analyzed using standard methods. The theory is verified by comparing predicted and actual reconstruction signal-to-noise ratios resulting from simulating a symmetric wavelet transform

Published in:

Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on  (Volume:46 ,  Issue: 11 )

Date of Publication:

Nov 1999

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.