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利用声全息方法分析运动声源的噪声辐射。从声音的多普勒效应出发,利用接收到的含有多普勒效应的声音信号构造出全息数据来完成全息重建。并根据该原理设计一套测量装置,实验表明利用该装置能够快速、准确地识别运动车辆表面的噪声。
Using Acoustic Holography to Analyze the Noise Radiation of Motion Sound Source. Based on the Doppler effect of the sound, the holographic data is constructed by using the received sound signal containing the Doppler effect to complete the holographic reconstruction. According to this principle, a set of measuring device is designed. Experiments show that the device can quickly and accurately identify the noise on the surface of a moving vehicle.