| Project/Area Number |
23740207
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
|
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| Research Institution | Nagaoka University of Technology (2013)
Yamanashi Eiwa College (2011-2012) |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 重力波 / 相対論 / 宇宙物理 / 信号処理 / 計算物理 |
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| Research Abstract |
The Hilbert-Huang transform (HHT) is a novel, adaptive approach to time series analysis. It does not impose a basis set on the data or otherwise make assumptions about the data form, and so the time-frequency decomposition is not limited by spreading due to uncertainty. Because of the high resolution of the time-frequency, we investigated the possibility of the application of the HHT to the search for gravitational waves. It was necessary to determine some parameters in the empirical mode decomposition (EMD), which is a component of the HHT, and in this research we proposed and demonstrated a method to determine the optimal values of the parameters to use in the search for gravitational waves. As the results, we concluded that HHT was an effective method to search for gravitational waves.
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