Cited by 8Water Systems and OptimizationAdvanced Adaptive Filtering TechniquesUltrasonics and Acoustic Wave Propagation

The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.

Cross-spectral phase method for time delay estimation in acoustic leak detection

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Abstract

In this paper, a method based on linear segmentation of the cross-spectral phase is proposed for estimating time delays between acoustic/vibration leak signals measured in water distribution systems. The method determines the time delay via linear regression of the cross-spectral phase while excluding non-linearities introduced by noise. A simple and fast approach is developed for automatically detecting linear segments in the cross-spectral phase. Experimental results demonstrate the capability of the method to accurately estimate time delays without first filtering the signals even in the presence of multiplicative noise that distorts the cross-spectral phase, in contrast with generalised cross-correlation and generalised phase spectrum methods. The proposed method provides a confidence interval that indicates the region where the leak is likely to be located, thereby improving the reliability of leak localisation.

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Crossref · 10.1016/j.apacoust.2025.110695

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  1. Zhao, 1984, The generalised phase spectrum method for time delay estimation, Proc IEEE Conf Acoust Speech Signal Process, 3, 1

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Metadata

Authors
Uchendu, N., Muggleton, J. M., & White, P. R.
Affiliations
University of Southampton (GB)
Corresponding author
Uchendu, Ndubuisi
Venue
Applied Acoustics
Publisher
Elsevier BV
Published
2025-05
Volume
235
Pages
110695
ISSN
0003-682X (ISSN-L)
OpenAlex
W4408847706
Cited by
8
References
25
Citations by year
2026: 7 · 2025: 1
FWCI
2.91
Type
journal article
Language
en
Open access
Locations
  • Applied Acoustics (publishedVersion, cc-by)
  • SSRN Electronic Journal (acceptedVersion)
  • ePrints Soton (University of Southampton) (acceptedVersion)
Funders
Petroleum Technology Development Fund
Topics
  • Physical Sciences › Engineering › Civil and Structural Engineering › Water Systems and Optimization
  • Physical Sciences › Computer Science › Signal Processing › Advanced Adaptive Filtering Techniques
  • Physical Sciences › Engineering › Mechanics of Materials › Ultrasonics and Acoustic Wave Propagation
Keywords
time delay estimation, acoustic leak detection, water distribution systems, leak localization, multiplicative noise, resonance, linear regression, divide-and-conquer, confidence intervals, vibration signals

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