VARIABLE WORD-LENGTHS IN FILTERS WITH LEAST-SQUARES ERROR CRITERION

Authors
DEMPSTER AG MACLEOD MD
Citation
Ag. Dempster et Md. Macleod, VARIABLE WORD-LENGTHS IN FILTERS WITH LEAST-SQUARES ERROR CRITERION, Electronics Letters, 33(3), 1997, pp. 201-202
Citations number
7
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
33
Issue
3
Year of publication
1997
Pages
201 - 202
Database
ISI
SICI code
0013-5194(1997)33:3<201:VWIFWL>2.0.ZU;2-H
Abstract
Variable coefficient wordlengths in combination with a multiplier redu ces the computational complexity of fixed-point IIR digital filters wi th minimax error specification. When variable wordlengths are used for the least-squares error specification here, improved filters are achi eved without resorting to discrete optimisation. Also, the wordlength allocation for the least squares criterion gives near-optimum results for filters with minimax specification.