Publication
Title
Performance assessment of discrete wavelet transform for de-noising of FBG sensors signals embedded in asphalt pavement
Author
Abstract
In recent years, the Fiber Bragg Grating (FBG) sensor technology has been increasingly utilized as an optical measurement system in various engineering applications, particularly for structural health monitoring (SHM) purposes. This trend can be attributed to the inherent benefits of FBG sensors, such as their small size, immunity to electromagnetic interference, resistance to corrosion, and high accuracy and sensitivity. Various factors cause noise in the FBG sensor signal, which has a significant effect on measurement precision. As a result, de-noising plays an important role in the use of FBG sensor systems. In this study, strain data collected from FBG sensors embedded in a road section were used to evaluate the performance of discretized wavelet transform (DWT) for denoising FBG signals. The presence of noise poses a significant challenge in accurately measuring low-amplitude strains and light loads. To address this issue, various approaches have been investigated, including the selection of appropriate mother wavelets, levels of decomposition, thresholding functions, and thresholding selection approaches, with the aim of identifying the optimal parameters for effective denoising. The results show that FBG signals could be denoised successfully and low amplitude strains appeared completely without any loss of valuable data.
Language
English
Source (journal)
Optical fiber technology. - Orlando, Fla
Publication
Orlando, Fla : 2024
ISSN
1068-5200
DOI
10.1016/J.YOFTE.2023.103596
Volume/pages
82 (2024) , p. 1-11
Article Reference
103596
ISI
001127108100001
Full text (Publisher's DOI)
Full text (open access)
The author-created version that incorporates referee comments and is the accepted for publication version Available from 24.05.2024
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
Project info
BITuminous Mortars: an Accelerated testing APproach (BITMA²P).
Confidential
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identifier
Creation 09.01.2024
Last edited 16.02.2024
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