| 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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| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | 信号処理 / ディジタルフィルタ / L_2感度最小実現 / 2次モード / 周波数変換 / 平衡実現 / リミットサイクル |
|---|
| 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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