2024
DOI: 10.1088/1361-6501/ad30be
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Acoustic tunnel lining cavity detection using cepstral coefficients with optimized filter bank

Ting Wu,
Xiaobin Cheng,
Zhaoli Yan
et al.

Abstract: Tunnels are an essential component of modern transportation infrastructure, and their structural health is critical to traffic safety, which can be seriously affected by tunnel lining cavities. In this paper, an acoustic-based detection approach for assessing the integrity of tunnel linings is studied. By tapping the tunnel lining surface, acoustic signals are sampled and analyzed using a novel feature parameter extraction algorithm—the energy-frequency cepstral coefficient, which uses wavelet packet decomposi… Show more

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