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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2007, Vol. 8 Issue (5): 772-777    DOI: 10.1631/jzus.2007.A0772
Mechanical Engineering and Materials Science     
Study of engine noise based on independent component analysis
HAO Zhi-yong, JIN Yan, YANG Chen
School of Mechanical and Energy Engineering, Zhejiang University, Hangzhou 310027, China
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Abstract  Independent component analysis was applied to analyze the acoustic signals from diesel engine. First the basic principle of independent component analysis (ICA) was reviewed. Diesel engine acoustic signal was decomposed into several independent components (ICs); Fourier transform and continuous wavelet transform (CWT) were applied to analyze the independent components. Different noise sources of the diesel engine were separated, based on the characteristics of different component in time-frequency domain.

Key words： Acoustic signals      Independent component analysis (ICA)      Wavelet transform      Noise source identification     
Received: 19 August 2006     
CLC:  TB53  
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HAO Zhi-yong
JIN Yan
YANG Chen
Cite this article:

HAO Zhi-yong, JIN Yan, YANG Chen. Study of engine noise based on independent component analysis. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2007, 8(5): 772-777.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2007.A0772     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2007/V8/I5/772

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