| Presentation | 2016-03-28 [Poster Presentation] Determination of Optimal Windowing Length Based on the Cepstrum Ratio for Structural Health Monitoring Yoshinori Takahashi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper describes structural health monitoring using external noise. Building diagnostics using the slight vibration caused by wind or traffic noise is effective for a structural health monitoring. However, selecting the optimum length of windowing is an important key for passive diagnostics. This paper proposed a cepstrum ratio and selecting the optimum windowing length based on it. While the harmonic structure of an external noise is varied. On the other hand the eigenfrequency of a building is constant. Therefore, it is considered that the frame average and the standard deviation of the cepstrum represent the vibration characteristics of the building and the external noise respectively. Furthermore, based on the same manner of S/N, the ratio of the frame average and the standard deviation of the cepstrum is expressed as cepstrum ratio, it can be evaluated the superiority of the vibration characteristics of the building in an observed signal. From the model experiment, it was shown that the estimation error of the building eigenfrequency is decreased with increasing the cepstrum ratio. In addition, it was confirmed that the estimation error of the eigenfrequency is convergence within the standard deviation on the condition of cepstrum ratio over 0dB. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | structural health monitoring / transfer function / acoustic signal processing / window length / cepstrum |
| Paper # | EA2015-74,SIP2015-123,SP2015-102 |
| Date of Issue | 2016-03-21 (EA, SIP, SP) |
| Conference Information | |
| Committee | EA / SP / SIP |
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| Conference Date | 2016/3/28(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Beppu International Convention Center B-ConPlaza |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Engineering/Electro Acoustics, Speech, Signal Processing, and Related Topics |
| Chair | Yoichi Haneda(Univ. of Electro-Comm.) / Kazunori Mano(Shibaura Inst. of Tech.) / Osamu Houshuyama(NEC) |
| Vice Chair | Yukio Iwaya(Tohoku Gakuin Univ.) / Mitsunori Mizumachi(Kyushu Inst. of Tech.) / Norihide Kitaoka(Tokushima Univ.) / Makoto Nakashizuka(Chiba Inst. of Tech.) / Masahiro Okuda(Univ. of Kitakyushu) |
| Secretary | Yukio Iwaya(NTT) / Mitsunori Mizumachi(KDDI R&D Labs.) / Norihide Kitaoka(Tokyo City Univ.) / Makoto Nakashizuka(Kobe Univ.) / Masahiro Okuda(NEC) |
| Assistant | Shoichi Koyama(Univ. of Tokyo) / Takashi Nose(Tohoku Univ.) / Taichi Asami(NTT) / Takamichi Miyata(Chiba Inst. of Tech.) |
| Paper Information | |
| Registration To | Technical Committee on Engineering Acoustics / Technical Committee on Speech / Technical Committee on Signal Processing |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] Determination of Optimal Windowing Length Based on the Cepstrum Ratio for Structural Health Monitoring |
| Sub Title (in English) | |
| Keyword(1) | structural health monitoring |
| Keyword(2) | transfer function |
| Keyword(3) | acoustic signal processing |
| Keyword(4) | window length |
| Keyword(5) | cepstrum |
| 1st Author's Name | Yoshinori Takahashi |
| 1st Author's Affiliation | Tokyo Metropolitan College of Industrial Technology(TMCIT) |
| Date | 2016-03-28 |
| Paper # | EA2015-74,SIP2015-123,SP2015-102 |
| Volume (vol) | vol.115 |
| Number (no) | EA-521,SIP-522,SP-523 |
| Page | pp.pp.45-50(EA), pp.45-50(SIP), pp.45-50(SP), |
| #Pages | 6 |
| Date of Issue | 2016-03-21 (EA, SIP, SP) |