By Topic

On half-band, third-band, and Nth-band FIR filters and their design

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)
F. Mintzer ; IBM Thomas J. Watson Research Center, Yorktown Heights, NY

Half-band FIR digital filters are known to be important due to their reduced computational requirements. They are especially valuable when used to decimate or interpolate by a factor of 2 [1], where their characteristics well match the filtering requirements. Computational savings can also be achieved by extending the concept of half-band filters to Nth-band filters for use in decimation or interpolation by a factor of N. In this paper, it is shown that for certain filter requirements, common to decimation and interpolation, an Nth-band filter exists with passband and stopband ripples only slightly larger than those of the optimal FIR filter. It is demonstrated that optimal half-band filters can be designed by using the computer program of McClellan, Parks, and Rabiner [2]. It is also shown that useful Nth-band filters can be designed by using this program, which is perhaps the most widely available filter design program.

Published in:

IEEE Transactions on Acoustics, Speech, and Signal Processing  (Volume:30 ,  Issue: 5 )