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Paper Abstract and Keywords
Presentation 2016-03-28 13:15
[Poster Presentation] Determination of Optimal Windowing Length Based on the Cepstrum Ratio for Structural Health Monitoring
Yoshinori Takahashi (TMCIT)
Abstract (in Japanese) (See Japanese page) 
(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) 
(in English) structural health monitoring / transfer function / acoustic signal processing / window length / cepstrum / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 521, EA2015-74, pp. 45-50, March 2016.
Paper # EA2015-74 
Date of Issue 2016-03-21 (EA, SIP, SP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee EA SP SIP  
Conference Date 2016-03-28 - 2016-03-29 
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 
Paper Information
Registration To EA 
Conference Code 2016-03-EA-SP-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) 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  
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1st Author's Name Yoshinori Takahashi  
1st Author's Affiliation Tokyo Metropolitan College of Industrial Technology (TMCIT)
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Speaker
Date Time 2016-03-28 13:15:00 
Presentation Time 90 
Registration for EA 
Paper # IEICE-EA2015-74,IEICE-SIP2015-123,IEICE-SP2015-102 
Volume (vol) IEICE-115 
Number (no) no.521(EA), no.522(SIP), no.523(SP) 
Page pp.45-50 
#Pages IEICE-6 
Date of Issue IEICE-EA-2016-03-21,IEICE-SIP-2016-03-21,IEICE-SP-2016-03-21 


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