| Project/Area Number |
05650341
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
情報通信工学
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| Research Institution | Tohoku University |
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Principal Investigator |
KAWAMATA Masayuki Tohoku University, Graduate School of Information Sciences, Associate Professor, 大学院・情報科学研究科, 助教授 (70153004)
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| Project Period (FY) |
1993 – 1994
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| Project Status |
Completed (Fiscal Year 1994)
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| Budget Amount *help |
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1994: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1993: ¥1,500,000 (Direct Cost: ¥1,500,000)
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| Keywords | Genetic algorithm / Multidimensional digital signal processing / Digital filter / Optimal design / Separable-denominator form / non-separable-denominator form |
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| Research Abstract |
This paper proposes an optimal design of separable-denominator two-dimensional digital filters based on a genetic algorithm for frequency domain specifications. Prameters of the transfer function of a separable-denominator two-dimensional digital filters are encoded to bit strings in order to apply a genetic algorithm to the design. Stability of a two-dimensional digital filter is easily cheched because of the separabitlity of the denominator of the transfer function. The proposed method has flexibility for change of specifications of two-dimensional digital filters, and enables us to use arbitrary error functions. The usefulness of the proposed method is demonstrated by design examples.
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