Compared of the wavelet threshold denoising modulus maxima denoising and translation invariant in effecting the denoising . We have found that the wavelet threshold denoising preserved eggs percussion vibration signal noise cancellation . 4 .

比较了小波阈值去噪、模极大值去噪和平移不变三种常用的小波去噪方法的去噪效果，发现小波 阈值去噪方法对皮蛋 敲击振动信号的消噪效果最佳。