Synthesis of low-sensitivity second-order digital filters usinggenetic programming with automatically defined functions
Uesaka, K.
Kawamata, M.
Dept. of Electron. Eng., Tohoku Univ., Sendai;
This paper appears in: Signal Processing Letters, IEEE
Publication Date: Apr 2000
Volume: 7,
Issue: 4
On page(s): 83-85
ISSN: 1070-9908
References Cited: 6
CODEN: IESPEJ
INSPEC Accession Number: 6573037
Digital Object Identifier: 10.1109/97.833004
Current Version Published: 2002-08-06
Abstract
This letter proposes a synthesis method for low coefficient
sensitivity second-order IIR digital filter structures using genetic
programming with automatically defined functions (GP-ADF). In this
letter, digital filter structures are represented as S-expressions with
subroutines. It is easy to generate syntactically valid S-expressions
and perform the genetic operations, because the representation is
suitable for GP. A numerical example uses the fitness measure, including
the magnitude sensitivity, and demonstrates that the proposed method can
synthesize efficiently very low coefficient sensitivity filter
structures
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