Abstract
This paper presents a synthesis method for infinite-impulse response (IIR) digital filter structures using genetic programming with automatically defined functions (GP-ADF). In the proposed method, digital filter structures are represented as S-expressions with subroutines, which are written directly from the set of difference equations. This paper also shows the condition for the constructing the S-expressions that represent the filter structures without delay-free loops. Numerical examples synthesize two-filter structures: the low-coefficient sensitivity fourth-order filter structure and the low-output roundoff noise second-order filter structure.
Original language | English |
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Pages (from-to) | 977-983 |
Number of pages | 7 |
Journal | IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing |
Volume | 50 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2003 Dec |
Externally published | Yes |
Keywords
- Digital filter wordlength effects
- Genetic programming
- Infinite-impulse response (TIR) digital filters
ASJC Scopus subject areas
- Signal Processing
- Electrical and Electronic Engineering