Denoising Vibration Signals of Food Refrigerant Air Compressor Based on Wavelet Transform
On the basis of wavelet denoising and its better time-frequency characteristic, this paper presents an effective vibration signal denoising method for food refrigerant air compressor. The solution of eliminating strong noise is investigated with the combination of soft threshold and exponential lipschitza. The good denoising results show that the presented method is effective for improving the signal noise ratio and builds the good foundation for further extraction of the vibration signals.
Y. J. Gong et al., "Denoising Vibration Signals of Food Refrigerant Air Compressor Based on Wavelet Transform ", Key Engineering Materials, Vols. 439-440, pp. 1037-1041, 2010