Experimental Study on Noise Sources Identification of Vehicle Based on Microphone Array technology

Si Chundi Chen Enli Yang Shaopu Wang Cuiyan

Journal of Vibration and Shock ›› 2009, Vol. 28 ›› Issue (6) : 171-174.

PDF(1399 KB)
PDF(1399 KB)
Journal of Vibration and Shock ›› 2009, Vol. 28 ›› Issue (6) : 171-174.
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Experimental Study on Noise Sources Identification of Vehicle Based on Microphone Array technology

  • Si Chundi Chen Enli Yang Shaopu Wang Cuiyan
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Abstract

Microphone Array technology is to get sound field information by multiple microphones, to process sound field signals applying the beam forming technology and to be able to identify broad-band sound sources efectively. Using the microphone array system based on beam forming technology, the frequency and energy distribution property of the noise emission of vehicle were investigated in this paper, the frequency and exact noise poisitions were determined by means of the optical pictures automatically overlapping. The results show that the microphone array technology is an efective way for the noise diagnose and sound localization, it ofers the scientific basis for noise control of vehicle.

Key words

Beam forming / Microphone array / Vehicle / Noise sources identification

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Si Chundi Chen Enli Yang Shaopu Wang Cuiyan . Experimental Study on Noise Sources Identification of Vehicle Based on Microphone Array technology[J]. Journal of Vibration and Shock, 2009, 28(6): 171-174
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