Research on a Novel Denoising Method for Negative Pressure Wave Signal Based on VMD
The key to accurately locate pipeline leakage is to effectively reduce the noise in the leakage signal. However, the leakage signal has the characteristics of nonlinear and dynamic change, and the denoising effect of the traditional method is limited. In order to reduce the positioning error caused...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2023-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10056139/ |
| _version_ | 1797847394686074880 |
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| author | Zhu Jiang Ganghui Guo Boxiang Liu Yuanmin Zhang |
| author_facet | Zhu Jiang Ganghui Guo Boxiang Liu Yuanmin Zhang |
| author_sort | Zhu Jiang |
| collection | DOAJ |
| description | The key to accurately locate pipeline leakage is to effectively reduce the noise in the leakage signal. However, the leakage signal has the characteristics of nonlinear and dynamic change, and the denoising effect of the traditional method is limited. In order to reduce the positioning error caused by noise, a novel denoising method based on variational mode decomposition (VMD) is proposed. First, the correlation coefficient is used to screen effective intrinsic mode function components. Then, an optimization method of VMD decomposition layers <inline-formula> <tex-math notation="LaTeX">$k$ </tex-math></inline-formula> by using minimum information entropy is utilized. Thus, the optimal number of layers and noise reduction signal can be obtained. Finally, the leakage point can be obtained by the principle of negative pressure wave (NPW). Simulation results show that the SNR can effectively improve by using the method in this paper. In laboratory experiments, this method can be used to effectively denoise the pressure signal while preserving the original signal characteristics as much as possible. Furthermore, From the perspective of positioning accuracy, compared other methods, the proposed method can achieve better positioning effect, and the average relative positioning error is 2.03%. |
| first_indexed | 2024-04-09T18:10:40Z |
| format | Article |
| id | doaj.art-e63e52a0b3464a32a99b933ef65b701b |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-09T18:10:40Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-e63e52a0b3464a32a99b933ef65b701b2023-04-13T23:00:44ZengIEEEIEEE Access2169-35362023-01-0111350593506810.1109/ACCESS.2023.325038010056139Research on a Novel Denoising Method for Negative Pressure Wave Signal Based on VMDZhu Jiang0Ganghui Guo1Boxiang Liu2Yuanmin Zhang3https://orcid.org/0009-0002-6046-9284School of Energy and Power Engineering, Xihua University, Chengdu, ChinaSchool of Energy and Power Engineering, Xihua University, Chengdu, ChinaCollege of Electrical Engineering, Sichuan University, Chengdu, ChinaChina Unicom (Sichuan) Industrial Internet Company Ltd, Beijing, ChinaThe key to accurately locate pipeline leakage is to effectively reduce the noise in the leakage signal. However, the leakage signal has the characteristics of nonlinear and dynamic change, and the denoising effect of the traditional method is limited. In order to reduce the positioning error caused by noise, a novel denoising method based on variational mode decomposition (VMD) is proposed. First, the correlation coefficient is used to screen effective intrinsic mode function components. Then, an optimization method of VMD decomposition layers <inline-formula> <tex-math notation="LaTeX">$k$ </tex-math></inline-formula> by using minimum information entropy is utilized. Thus, the optimal number of layers and noise reduction signal can be obtained. Finally, the leakage point can be obtained by the principle of negative pressure wave (NPW). Simulation results show that the SNR can effectively improve by using the method in this paper. In laboratory experiments, this method can be used to effectively denoise the pressure signal while preserving the original signal characteristics as much as possible. Furthermore, From the perspective of positioning accuracy, compared other methods, the proposed method can achieve better positioning effect, and the average relative positioning error is 2.03%.https://ieeexplore.ieee.org/document/10056139/Negative pressure wavedenoisingvariational mode decompositioncorrelation coefficientinformation entropyleak location |
| spellingShingle | Zhu Jiang Ganghui Guo Boxiang Liu Yuanmin Zhang Research on a Novel Denoising Method for Negative Pressure Wave Signal Based on VMD IEEE Access Negative pressure wave denoising variational mode decomposition correlation coefficient information entropy leak location |
| title | Research on a Novel Denoising Method for Negative Pressure Wave Signal Based on VMD |
| title_full | Research on a Novel Denoising Method for Negative Pressure Wave Signal Based on VMD |
| title_fullStr | Research on a Novel Denoising Method for Negative Pressure Wave Signal Based on VMD |
| title_full_unstemmed | Research on a Novel Denoising Method for Negative Pressure Wave Signal Based on VMD |
| title_short | Research on a Novel Denoising Method for Negative Pressure Wave Signal Based on VMD |
| title_sort | research on a novel denoising method for negative pressure wave signal based on vmd |
| topic | Negative pressure wave denoising variational mode decomposition correlation coefficient information entropy leak location |
| url | https://ieeexplore.ieee.org/document/10056139/ |
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