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The Helmholtz Equation Least Squares Method for Moving Sound Source

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4 Author(s)
Desen Yang ; Coll. of Underwater Acoust. Eng., Harbin Eng. Univ., Harbin, China ; Xiaoxia Guo ; Shengguo Shi ; Bo Hu

To effectively solve the underwater moving sound source of the noise source identification problem, the theory of Moving Sound Source Identification which is based on Mobile Framework Technology and the Helmholtz equation least squares (HELS) is investigated. Acoustic holography method based on the combination of the two methods is founded and the numerical simulation shows that the combination method can accurately identify underwater moving sound source. The method is especially suitable for Radiated acoustic field of Spherical moving sound source, which could obtain High source location accuracy and Wide frequency range. The accuracy of Long-shaped sound source movement is a Little lower. It could accurately identify the noise source localization which only requires that the holographic array measurement of surface is 1.3 times more than the Surface reconstruction. Rapid identification about noise source localization movement which uses a small measuring surface is realized and it provides Convenience for engineering applications.

Published in:

Information Engineering and Computer Science (ICIECS), 2010 2nd International Conference on

Date of Conference:

25-26 Dec. 2010

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