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包络分析是机械测试和故障诊断领域的常用方法 ,本文利用小波的频带分离特性和噪声的小波变换特性 ,将希尔伯特变换和小波分析结合起来 ,提高了提取信号包络信息的精度 ,并通过实例说明了这种方法的有效性
Envelope analysis is a common method in the field of mechanical testing and fault diagnosis. In this paper, the wavelet transform and wavelet analysis are combined to improve the accuracy of envelope information extraction An example shows the effectiveness of this method