Application Research of the Signal Processing Method Based on Db5 Wavelet Transform in Leakage Location of Ship Pipeline

Abstract:

In the complex ship noise environment, the effective signal should be extracted before the leakage signals of acquisition which often mix with noise signal do further analysis. So the signal processing method based on db5 wavelet transform is put forward. In order to make the signal-to-noise separation and restore the original signal waveform, wavelet de-noising processing is done for the pressure sensors receiving signal. Finally, the negative pressure wave method is used to find leakage location of ship pipeline. The experiment proved that the signal processing method based on db5 wavelet transform is suitable for complex ship noise environment and improves location accuracy.

• Periodical: Applied Mechanics and Materials (Volume 203)
• Pages: 103-107
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.203.103
• Online since: October 2012
• Authors: Zhong Bo Peng, Yue Chong Liu, Xue Feng Han
• Keywords: Db5 Wavelet Transform, Leakage Location, Negative Pressure Wave, Ship Pipeline

References

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