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针对利用声全息方法识别噪声源过程中重建声源幅值偏差的问题,分析了偏差产生的原因,井针对点声源的情况提出了一种修正算法。仿真计算和汽车的测量实验证明,采用修正算法后,重建声源幅值的相对大小与实际情况更为接近。
Aiming at the problem of using the acoustic holography to identify the amplitude deviation of the sound source during the process of noise source analysis, the reason of the deviation is analyzed, and a correction algorithm for the point sound source is proposed. The simulation calculation and the car’s measurement experiment prove that the relative size of the reconstruction sound source’s amplitude is closer to the actual situation after the correction algorithm is adopted.