2010 Fiscal Year Final Research Report
An algebraic method for inverse source problems and its applications
| Project/Area Number |
21760311
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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 |
Measurement engineering
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| Research Institution | The University of Electro-Communications |
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Principal Investigator |
NARA Takaaki The University of Electro-Communications, 大学院・情報理工学研究科, 准教授 (80353423)
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| Project Period (FY) |
2009 – 2010
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| Keywords | センシング情報処理 / 逆問題 / スマートセンサ / 数理工学 / 非破壊検査 / 脳磁場 / 漏洩磁束探傷 |
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| Research Abstract |
We considered the magnetoencephalography inverse problem and proposed a method for estimating the neural current inside the human brain from the magnetic field measured by sensors on a surface that does not encloses the current source. The advantages compared to the conventional methods are that it does not require an initial guess of the solution and iterative computing. Also, for non-destructive inspection of a steel pipe, we proposed two sensors that measure the so-called Fourier coefficients of the magnetic field. Compared to the conventional method using a sensor array, our method can localize a crack on the surface of the pipe by using the two sensors only.
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