[PDF][PDF] Advances in phase-sensitive optical time-domain reflectometry

S Liu, F Yu, R Hong, W Xu, L Shao… - Opto-Electronic …, 2022 - researching.cn
Phase-sensitive optical time-domain reflectometry (Φ-OTDR) has attracted numerous
attention due to its superior performance in detecting the weak perturbations along the fiber …

Data-driven distributed optical vibration sensors: a review

LY Shao, S Liu, S Bandyopadhyay, F Yu… - IEEE Sensors …, 2019 - ieeexplore.ieee.org
Distributed optical vibration sensors (DOVS) have attracted much attention recently since it
can be used to monitor mechanical vibrations or acoustic waves with long reach and high …

Classification of acoustic influences registered with phase-sensitive OTDR using pattern recognition methods

IA Barantsov, AB Pnev, KI Koshelev, VS Tynchenko… - Sensors, 2023 - mdpi.com
This article is devoted to the development of a classification method based on an artificial
neural network architecture to solve the problem of recognizing the sources of acoustic …

Markov Transition Fields and Deep Learning-Based Event-Classification and Vibration-Frequency Measurement for φ-OTDR

X Zhao, H Sun, B Lin, H Zhao, Y Niu… - IEEE Sensors …, 2021 - ieeexplore.ieee.org
In this paper, a novel method, relying on Markov Transition Fields (MTF) and deep learning,
is proposed to classify the vibration-events and measure vibration-frequency, for-OTDR …

Smart Fiber-Optic Distributed Acoustic Sensing (sDAS) With Multi-Task Learning for Time-Efficient Ground Listening Applications

H Wu, Y Wang, X Liu, Y Sun, G Yan… - IEEE Internet of …, 2023 - ieeexplore.ieee.org
In recent years, fiber-optical distributed acoustic sensing (DAS) has been applied to various
large-scale infrastructure monitoring areas in smart cities, leading to a new generation of …

Multi-branch long short-time memory convolution neural network for event identification in fiber-optic distributed disturbance sensor based on φ-OTDR

Z Wang, S Lou, X Wang, S Liang, X Sheng - Infrared Physics & Technology, 2020 - Elsevier
In this paper, we propose a novel neural network model named by Multi-branch Long Short-
Time Memory Convolution Neural Network (MLSTM-CNN) for identifying disturbance signals …

[HTML][HTML] TFF-CNN: Distributed optical fiber sensing intrusion detection framework based on two-dimensional multi-features

X Hu, G Qiu, HR Karimi, D Zhang - Neurocomputing, 2024 - Elsevier
Distributed fiber optic vibration sensing system has been widely used in safety monitoring
with distinct advantages, and the feature extraction and classification methods of fiber optic …

Event Identification by F-ELM Model for -OTDR Fiber-Optic Distributed Disturbance Sensor

H Jia, S Lou, S Liang, X Sheng - IEEE Sensors Journal, 2019 - ieeexplore.ieee.org
A novel event identification method, which combines the extreme learning machine (ELM)
and fisher score feature selection method, is proposed to reduce the nuisance alarm rate …

Fusion of distributed fiber optic sensing, acoustic NDE, and artificial intelligence for infrastructure monitoring

PR Ohodnicki, P Zhang, N Lalam, D Karki… - Optical Fiber …, 2022 - opg.optica.org
Conference title, upper and lower case, bolded, 18 point type, centered Page 1 Fusion of
Distributed Fiber Optic Sensing, Acoustic NDE, and Artificial Intelligence for Infrastructure …

Pattern recognition using self-reference feature extraction for φ-OTDR

Y Huang, H Zhao, X Zhao, B Lin, F Meng, J Ding… - Applied Optics, 2022 - opg.optica.org
This paper proposes a pattern recognition method for φ-OTDR based on self-reference
features, where machine learning is applied to classify the vibration monitored. The φ-OTDR …