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本文综述了近年来在噪声控制工程中,噪声源鉴别的各种技术。其中包括分部运转法、声强测量法、时域分析法、相关分析法和相干分析法。其中有些鉴别方法,是随着近代快速富里叶变换在声学仪器中的应用而发展起来的。本文对各种鉴别方法的优缺点和使用的局限性作了介绍。在不同的场合中,可根据具体情况采取适当的鉴别方法。
This article summarizes various techniques for identifying noise sources in noise control projects in recent years. Including the division of operation method, sound intensity measurement, time domain analysis, correlation analysis and coherence analysis. Some of these methods have been developed with the application of modern fast Fourier transform in acoustic instruments. This article describes the advantages and disadvantages of various methods of identification and the limitations of use. In different occasions, according to the specific circumstances to take appropriate identification methods.