Presentation 2009-09-04
Hierarchical Clustering-based Analysis of Telephone-Audible Noise
Norihito HIRASAWA, Masao MASUGI,
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Abstract(in English) This report presents a hierarchical clustering-based analysis of audible noises induced at telephone terminals. In analyzing the electromagnetic interference (EMI) patterns of telephone-audible noises, both the time- and frequency-domains-based approaches are applied. Here, signal occupation ratios for several amplitude intervals of target noises for the time-domain assessment, and compositions of multiple energy spectra for divided frequency bands of target noises were derived for frequency-domain analysis. Based on measured data assessment, we visually confirmed that measured telephone-audible noise data sets could be classified into several groups for both cases.
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Keyword(in English) audible noise / electromagnetic interference / energy spectrum / hierarchical clustering / time-domain
Paper # EMCJ2009-41
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Conference Information
Committee EMCJ
Conference Date 2009/8/28(1days)
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Registration To Electromagnetic Compatibility (EMCJ)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Hierarchical Clustering-based Analysis of Telephone-Audible Noise
Sub Title (in English)
Keyword(1) audible noise
Keyword(2) electromagnetic interference
Keyword(3) energy spectrum
Keyword(4) hierarchical clustering
Keyword(5) time-domain
1st Author's Name Norihito HIRASAWA
1st Author's Affiliation NTT Energy and Environment Systems Lab. NTT Corp.()
2nd Author's Name Masao MASUGI
2nd Author's Affiliation NTT Energy and Environment Systems Lab. NTT Corp.
Date 2009-09-04
Paper # EMCJ2009-41
Volume (vol) vol.109
Number (no) 185
Page pp.pp.-
#Pages 6
Date of Issue