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近年来,用互谱法测量声强在噪声源排列和声源识别方面已显示出效果.配上计算机数据处理和分析程序,此法有效和精确.由于能在近声场和混响声场下应用,这一方法可在现场使用.此法有可能取代许多传统的测量方法.但是,有关此法许多参数的研究结果,对关心噪声控制的工程师们来说不熟悉.本文在对互谱法进行一般论述的同时,对这些参数研究结果进行讨论.
In recent years, the use of cross-spectrum method to measure the sound intensity in the noise source arrangement and sound source recognition has shown the effect.And coupled with computer data processing and analysis program, this method is effective and accurate.Because it can be applied in the near-sound field and reverberant sound field , This method can be used in the field.This method may replace many traditional measurement methods.However, the results of many parameters of this method are not familiar to engineers interested in noise control.In this paper, The general discussion at the same time, the results of these parameters are discussed.