DocumentCode
1507315
Title
Variable wordlengths in filters with least-squares error criterion
Author
Dempster, A.G. ; Macleod, M.D.
Author_Institution
Sch. of Electron. & Manuf. Syst. Eng., Westminster Univ., London, UK
Volume
33
Issue
3
fYear
1997
fDate
1/30/1997 12:00:00 AM
Firstpage
201
Lastpage
202
Abstract
Variable coefficient wordlengths in combination with a multiplier reduces the computational complexity of fixed-point IIR digital filters with minimax error specification. When variable wordlengths are used for the least-squares error specification here, improved filters are achieved without resorting to discrete optimisation. Also. The wordlength allocation for the least squares criterion gives near-optimum results for filters with minimax specification
Keywords
IIR filters; least squares approximations; minimax techniques; computational complexity; fixed-point IIR digital filter; least-squares error; minimax error; multiplier; variable wordlength;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19970159
Filename
575919
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