摘要
本文主要针对两个主要噪声源频率相同或相近用谱分析很难区别主次时,采用相干分析法,根据各噪源辐射的噪声能量在总噪声能量中所占比重的大小来识别噪声源的主次.
When the f reguencies of two noise Sourcies are the same or approximately the same, it is difficult to distinguish one noise from another by spectrum analysis. In the present paper, based on coherence analysis , this problem is solved by calculating the proportion of the noise energy emitted from each of the noise sources , taking the noise energy as a whole.
