2013 Fiscal Year Final Research Report
Development in a New Method of Data Analysis for Searching Gravitational Wave Signals from Burst and Other Sources
| Project/Area Number |
23540293
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Niigata University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
TAKAHASHI Hirotaka 長岡技術科学大学, 工学部, 准教授 (40419693)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 重力波 / 一般相対論 / データ解析 |
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| Research Abstract |
We have investigated effectiveness of Hilbert-Huang Transform (HHT) to search for gravitational waves. Since it is necessary to determine some parameters in the empirical mode decomposition, which is a important component of the HHT, we determined the optimal value of the parameters for analyzing gravitational waves. And then we presented a method for constructing an alert system to search for burst signals from supernovae with the HHT. We showed that the HHT is effective for analysis of time-frequency properties of gravitational waves from compact binary coalescence in the post-merger phase as well as the inspiral phase.
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