Improving acoustic leak localization accuracy using an adaptive denoising algorithm in water distribution pipes

IF 3.4 2区物理与天体物理 Q1 ACOUSTICS

Applied Acoustics Pub Date : 2025-08-06 DOI:10.1016/j.apacoust.2025.110984

Yifan Ma , Yan Gao , Xiwang Cui , Jun Yang , Yang Li

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引用次数: 0

Abstract

Leaks in water distribution pipes have been localized using acoustic or vibration measurements with sensors placed on access points along the pipeline systems. Significant challenges arise for leak noise correlators when plastic pipes are increasingly used for the renovation of aging systems and the installation of new ones. In this paper, a denoising algorithm is proposed to transform the cross-correlation process into an adaptive determination of finite impulse response coefficients. The proposed algorithm is shown to outperform traditional cross-correlation methods by being less reliant on the statistical characteristics of measured leakage signals, even when the signal-to-noise ratio (SNR) is significantly low. Furthermore, theoretical analysis and numerical simulations demonstrate that the SNR of the weight coefficients is substantially enhanced when the original signals are processed through the adaptive algorithm. The effectiveness of this adaptive algorithm for accurately locating leaks is validated through experimental data from both cast iron and plastic water pipes.

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利用自适应降噪算法提高配水管声泄漏定位精度

配水管道的泄漏已经通过放置在管道系统接入点上的传感器进行声学或振动测量来定位。当塑料管道越来越多地用于老化系统的翻新和新系统的安装时，泄漏噪声相关器面临着重大挑战。本文提出了一种去噪算法，将互相关过程转化为有限脉冲响应系数的自适应确定。结果表明，即使在信噪比（SNR）非常低的情况下，该算法对泄漏测量信号的统计特征依赖程度较低，优于传统的互相关方法。理论分析和数值模拟结果表明，对原始信号进行自适应处理后，权重系数的信噪比得到了显著提高。通过铸铁水管和塑料水管的实验数据验证了该自适应算法精确定位泄漏的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Acoustics 物理-声学

CiteScore

7.40

自引率

11.80%

发文量

618

审稿时长

7.5 months

期刊介绍： Since its launch in 1968, Applied Acoustics has been publishing high quality research papers providing state-of-the-art coverage of research findings for engineers and scientists involved in applications of acoustics in the widest sense. Applied Acoustics looks not only at recent developments in the understanding of acoustics but also at ways of exploiting that understanding. The Journal aims to encourage the exchange of practical experience through publication and in so doing creates a fund of technological information that can be used for solving related problems. The presentation of information in graphical or tabular form is especially encouraged. If a report of a mathematical development is a necessary part of a paper it is important to ensure that it is there only as an integral part of a practical solution to a problem and is supported by data. Applied Acoustics encourages the exchange of practical experience in the following ways: • Complete Papers • Short Technical Notes • Review Articles; and thereby provides a wealth of technological information that can be used to solve related problems. Manuscripts that address all fields of applications of acoustics ranging from medicine and NDT to the environment and buildings are welcome.