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.
司春棣 陈恩利 杨绍普 王翠艳. 基于声阵列技术的汽车噪声源识别试验研究[J]. , 2009, 28(6): 171-174.
Si Chundi Chen Enli Yang Shaopu Wang Cuiyan . Experimental Study on Noise Sources Identification of Vehicle Based on Microphone Array technology. , 2009, 28(6): 171-174.