By Topic

On efficient implementations of 2-D digital filters using logarithmic number systems

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

1 Author(s)
Sicuranza, G.L. ; Universitá degli Studi di Trieste, Trieste, Italy

The implementation of 2-D digital filters using logarithmic number systems (LNS's) is discussed in detail. The properties of such systems are derived with reference to an iterative rounding scheme, which allows increasing the accuracy of the filter coefficient representation by using more than one power of the base a. The optimization of the base is proposed as an efficient tool for the design of accurate 2-D filters. Different design strategies are considered, together with a discussion of the degree of precision required for the circuits which determine the base of the LNS. The efficiency and versatility of this approach are demonstrated with several design examples in 2-D.

Published in:

Acoustics, Speech and Signal Processing, IEEE Transactions on  (Volume:31 ,  Issue: 4 )