Synthesis of low-sensitivity second-order digital filters usinggenetic programming with automatically defined functions
Uesaka, K.; Kawamata, M.
Signal Processing Letters, IEEE
Volume 7, Issue 4, Apr 2000 Page(s):83 - 85
Digital Object Identifier   10.1109/97.833004
Summary: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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