| Budget Amount *help |
¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Fiscal Year 2018: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2016: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
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| Outline of Final Research Achievements |
The present research has successfully developed a design method for digital filters that give an optimal analog performance via modern sampled-data control theory. The novel contribution here is that the new method can handle non-stationary signals, e.g., those having compact supports, in contrast to the conventional signal classes generated by finite-dimensional linear filters. This is the result of the extension provided by acquisition filters or generalized samplers that possess compact supports. As a serious by-product of the research conducted, it has been found that it is possible to construct a controller that achieves precise tracking for signals beyond the Nyquist frequency. This will open a new horizon for digital control and signal processing, and is expected to develop in the future.
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