2010 Fiscal Year Final Research Report
Development of technologies for optimal design and realization of high-accuracy digital filter structures
| Project/Area Number |
21760272
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Communication/Network engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
YAMAKI Shunsuke Tohoku University, 大学院・工学研究科, 助教 (10534076)
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| Project Period (FY) |
2009 – 2010
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| Keywords | 信号処理 / ディジタルフィルタ |
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| Research Abstract |
We derived a sufficient condition for the minimum L_2-sensitivity realizations to be synthesized analytically, and clarified a class of digital filters satisfying the sufficient condition. For digital filters of which second-order modes are all equal, we showed that the minimum L_2-sensitivity realization is equal to the balanced realization, which can be synthesized analytically. Furthermore, we revealed that second-order digital filters of which second-order modes are all equal are always obtained by performing frequency transformation with first-order prototype digital filters.
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