DocumentCode
1243165
Title
Improved algorithm for constrained roundoff noise minimisation in digital filters
Author
Xiao, C.
Author_Institution
Dept. of Electr. Eng., Sydney Univ., NSW, Australia
Volume
31
Issue
1
fYear
1995
fDate
1/5/1995 12:00:00 AM
Firstpage
20
Lastpage
22
Abstract
An improved algorithm is derived for minimising the global roundoff noise gain G of nth-order digital filters, yielding at least n(n-1)/2 coefficients of the filter structure to be zero. This algorithm is based on the necessary and sufficient conditions for the minimum G subject to the transformation matrix being triangular, and these conditions are achieved by modifying the Smith and Bomar (1988) iterative algorithm
Keywords
digital filters; filtering theory; iterative methods; matrix algebra; minimisation; noise; roundoff errors; constrained roundoff noise minimisation; digital filters; global roundoff noise gain; iterative algorithm; nth-order filters; transformation matrix;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19950024
Filename
364324
Link To Document