噪声源识别技术的进展

Progress of techniques for noise source identification

实现声源控制的前提是正确识别出主要噪声源。文章介绍了噪声源识别的各种方法。简要论述了传统的分析方法和基于信号处理技术的一般识别方法;对近年来出现的声强测量、声全息和波束形成技术的原理、特点、应用作了综述;最后简单介绍了合肥工业大学噪声振动工程研究所近几年来在这方面取得的成果。

The essential prerequisite for noise control is to locate the noise sources with exactness. Different methods for identifying the noise sources are illustrated in this paper. After briefly introducing the traditional analysis methods as well as the common methods based on signal processing,the paper makes a review of the principle, speciality and utility of some new techniques developed in recent years, such as sound intensity measurement, acoustic holography and beamforming. Also summarized are the research achievements gained by the Research Institute of Sound and Vibration, Hefei University of Technology, in this area.