The mechanical noise sources identification without source signal inputs was mainly studied in this paper with the theory of blind signal processing (BSP). In traditional noise sources identification methods, the preknowledge of noise source input signals and transmission paths was required in advance. In order to overcome this shortage, a blind sources separation/deconvolution model of mechanical noise sources identification was suggested, based on the analysis of the characteristics of vibration and acoustic signals’ production, transmission and mixing. And a natural gradient method of convolutive blind separation (CBS) was carried out based on minimal mutual information (MMI). Accordingly the validity of this method was confirmed by tank experiment.
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ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
September 4–7, 2007
Las Vegas, Nevada, USA
Conference Sponsors:
- Design Engineering Division and Computers and Information in Engineering Division
ISBN:
0-7918-4802-7
PROCEEDINGS PAPER
Study on the Mechanical Noise Sources Identification Without Source Signal Inputs Based on Blind Signal Processing
Yong Jiang,
Yong Jiang
Naval University of Engineering, Wuhan, Hubei, China
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Lin He,
Lin He
Naval University of Engineering, Wuhan, Hubei, China
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Lin-Ke Zhang
Lin-Ke Zhang
Naval University of Engineering, Wuhan, Hubei, China
Search for other works by this author on:
Yong Jiang
Naval University of Engineering, Wuhan, Hubei, China
Lin He
Naval University of Engineering, Wuhan, Hubei, China
Lin-Ke Zhang
Naval University of Engineering, Wuhan, Hubei, China
Paper No:
DETC2007-34371, pp. 2219-2223; 5 pages
Published Online:
May 20, 2009
Citation
Jiang, Y, He, L, & Zhang, L. "Study on the Mechanical Noise Sources Identification Without Source Signal Inputs Based on Blind Signal Processing." Proceedings of the ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 1: 21st Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C. Las Vegas, Nevada, USA. September 4–7, 2007. pp. 2219-2223. ASME. https://doi.org/10.1115/DETC2007-34371
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