阵列技术通过传声器获取声场信息,使用波束形成或功率谱估计原理对声场信号进行处理,能对宽带声源进行有效识别。在汽车表面声源分布假设的基础上利用平面十字阵列技术对某轿车高速行驶时的车外噪声源进行了识别。试验结果表明,阵列技术可以识别出高速运动轿车表面上的主要声源,从而为轿车的车外噪声控制提供了科学依据。 Array technology to obtain sound field information through the microphone, the use of beamforming or power spectrum estimation theory of sound field signal processing, can effectively identify the broadband sound source. Based on the assumption of the sound source distribution on the surface of the vehicle, a cross cruciform array technology is used to identify a noise source outside a car during high-speed driving. The experimental results show that the array technology can identify the main sound source on the surface of the high-speed sports car and provide a scientific basis for the car’s noise control outside the car.