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Detection and Characterization of Multiple Discontinuities in Cables with Time-Domain Reflectometry and Convolutional Neural Networks

In this paper, a convolutional neural network for the detection and characterization of impedance discontinuity points in cables is presented. The neural network analyzes time-domain reflectometry signals and produces a set of estimated discontinuity points, each of them characterized by a class des...

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Autores principales: Scarpetta, Marco, Spadavecchia, Maurizio, Adamo, Francesco, Ragolia, Mattia Alessandro, Giaquinto, Nicola
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8659911/
https://www.ncbi.nlm.nih.gov/pubmed/34884035
http://dx.doi.org/10.3390/s21238032
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author Scarpetta, Marco
Spadavecchia, Maurizio
Adamo, Francesco
Ragolia, Mattia Alessandro
Giaquinto, Nicola
author_facet Scarpetta, Marco
Spadavecchia, Maurizio
Adamo, Francesco
Ragolia, Mattia Alessandro
Giaquinto, Nicola
author_sort Scarpetta, Marco
collection PubMed
description In this paper, a convolutional neural network for the detection and characterization of impedance discontinuity points in cables is presented. The neural network analyzes time-domain reflectometry signals and produces a set of estimated discontinuity points, each of them characterized by a class describing the type of discontinuity, a position, and a value quantifying the entity of the impedance discontinuity. The neural network was trained using a great number of simulated signals, obtained with a transmission line simulator. The transmission line model used in simulations was calibrated using data obtained from stepped-frequency waveform reflectometry measurements, following a novel procedure presented in the paper. After the training process, the neural network model was tested on both simulated signals and measured signals, and its detection and accuracy performances were assessed. In experimental tests, where the discontinuity points were capacitive faults, the proposed method was able to correctly identify 100% of the discontinuity points, and to estimate their position and entity with a root-mean-squared error of 13 cm and 14 pF, respectively.
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spelling pubmed-86599112021-12-10 Detection and Characterization of Multiple Discontinuities in Cables with Time-Domain Reflectometry and Convolutional Neural Networks Scarpetta, Marco Spadavecchia, Maurizio Adamo, Francesco Ragolia, Mattia Alessandro Giaquinto, Nicola Sensors (Basel) Article In this paper, a convolutional neural network for the detection and characterization of impedance discontinuity points in cables is presented. The neural network analyzes time-domain reflectometry signals and produces a set of estimated discontinuity points, each of them characterized by a class describing the type of discontinuity, a position, and a value quantifying the entity of the impedance discontinuity. The neural network was trained using a great number of simulated signals, obtained with a transmission line simulator. The transmission line model used in simulations was calibrated using data obtained from stepped-frequency waveform reflectometry measurements, following a novel procedure presented in the paper. After the training process, the neural network model was tested on both simulated signals and measured signals, and its detection and accuracy performances were assessed. In experimental tests, where the discontinuity points were capacitive faults, the proposed method was able to correctly identify 100% of the discontinuity points, and to estimate their position and entity with a root-mean-squared error of 13 cm and 14 pF, respectively. MDPI 2021-12-01 /pmc/articles/PMC8659911/ /pubmed/34884035 http://dx.doi.org/10.3390/s21238032 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Scarpetta, Marco
Spadavecchia, Maurizio
Adamo, Francesco
Ragolia, Mattia Alessandro
Giaquinto, Nicola
Detection and Characterization of Multiple Discontinuities in Cables with Time-Domain Reflectometry and Convolutional Neural Networks
title Detection and Characterization of Multiple Discontinuities in Cables with Time-Domain Reflectometry and Convolutional Neural Networks
title_full Detection and Characterization of Multiple Discontinuities in Cables with Time-Domain Reflectometry and Convolutional Neural Networks
title_fullStr Detection and Characterization of Multiple Discontinuities in Cables with Time-Domain Reflectometry and Convolutional Neural Networks
title_full_unstemmed Detection and Characterization of Multiple Discontinuities in Cables with Time-Domain Reflectometry and Convolutional Neural Networks
title_short Detection and Characterization of Multiple Discontinuities in Cables with Time-Domain Reflectometry and Convolutional Neural Networks
title_sort detection and characterization of multiple discontinuities in cables with time-domain reflectometry and convolutional neural networks
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8659911/
https://www.ncbi.nlm.nih.gov/pubmed/34884035
http://dx.doi.org/10.3390/s21238032
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