DocumentCode
1033593
Title
Reducing CIC filter complexity
Author
Losada, Ricardo A. ; Lyons, Richard
Author_Institution
MathWorks Inc., Natick, MA, USA
Volume
23
Issue
4
fYear
2006
fDate
7/1/2006 12:00:00 AM
Firstpage
124
Lastpage
126
Abstract
This paper provides several tricks to reduce the complexity and enhance the usefulness of cascaded integrator-comb (CIC) filters. The first trick shows a way to reduce the number of adders and delay elements in a multi-stage CIC interpolation filter. The result is a multiplierless scheme that performs high-order linear interpolation using CIC filters. The second trick shows a way to eliminate the integrators from CIC decimation filters. The benefit is the elimination of unpleasant data word growth problems.
Keywords
cascade networks; comb filters; computational complexity; interpolation; CIC filter complexity; cascaded integrator-comb filters; decimation filters; interpolation filter; multiplierless scheme; Added delay; Costs; Digital signal processing; Hardware; Interpolation; Nonlinear filters;
fLanguage
English
Journal_Title
Signal Processing Magazine, IEEE
Publisher
ieee
ISSN
1053-5888
Type
jour
DOI
10.1109/MSP.2006.1657825
Filename
1657825
Link To Document