Machine learning methods for identification and classification of events in ϕ-OTDR systems: a review
The phase sensitive optical time-domain reflectometer (φ-OTDR), or in some applications
called distributed acoustic sensing (DAS), has been a popularly used technology for long …
called distributed acoustic sensing (DAS), has been a popularly used technology for long …
Integrated sensing and communication in an optical fibre
The integration of high-speed optical communication and distributed sensing could bring
intelligent functionalities to ubiquitous optical fibre networks, such as urban structure …
intelligent functionalities to ubiquitous optical fibre networks, such as urban structure …
Research progress in distributed acoustic sensing techniques
Y Shang, M Sun, C Wang, J Yang, Y Du, J Yi, W Zhao… - Sensors, 2022 - mdpi.com
Distributed acoustic sensing techniques based on Rayleigh scattering have been widely
used in many applications due to their unique advantages, such as long-distance detection …
used in many applications due to their unique advantages, such as long-distance detection …
Interference fading suppression in φ-OTDR using space-division multiplexed probes
We propose and experimentally demonstrate a novel interference fading suppression
method for phase-sensitive optical time domain reflectometry (φ-OTDR) using space …
method for phase-sensitive optical time domain reflectometry (φ-OTDR) using space …
Fading-free Φ-OTDR evaluation based on the statistical analysis of phase hopping
In phase-sensitive optical time domain reflectometry (Φ-OTDR), false phase peaks caused
by interference fading have been observed experimentally; however, the statistical law has …
by interference fading have been observed experimentally; however, the statistical law has …
PIG tracking utilizing fiber optic distributed vibration sensor and YOLO
Z Sha, H Feng, X Rui, Z Zeng - Journal of Lightwave Technology, 2021 - opg.optica.org
This paper proposed a strategy of tracking pipe PIG utilizing Fiber Optic Distributed Vibration
Sensor (FODVS) and YOLO object detection algorithm. Phase sensitive Optical Time …
Sensor (FODVS) and YOLO object detection algorithm. Phase sensitive Optical Time …
Ultra-low sampling resolution technique for heterodyne phase-OTDR based distributed acoustic sensing
Phase-sensitive optical time-domain reflectometry (Φ-OTDR) based on heterodyne
detection is widely used for its simple structure and high signal-to-noise ratio (SNR) …
detection is widely used for its simple structure and high signal-to-noise ratio (SNR) …
Data reduction in phase-sensitive OTDR with ultra-low sampling resolution and undersampling techniques
Data storage is a problem that cannot be ignored in the long-term monitoring of a phase-
sensitive optical time-domain reflectometry (Φ-OTDR) system. In this paper, we proposed a …
sensitive optical time-domain reflectometry (Φ-OTDR) system. In this paper, we proposed a …
Interference-fading-suppressed pulse-coding Φ-OTDR using spectrum extraction and rotated-vector-sum method
With phase-sensitive optical time-domain reflectometry (Φ-OTDR), an optic fiber can be
used as a distributed vibration sensor to perceive the external disturbance along the fiber …
used as a distributed vibration sensor to perceive the external disturbance along the fiber …
High-fidelity acoustic signal enhancement for phase-OTDR using supervised learning
F Jiang, Z Zhang, Z Lu, H Li, Y Tian, Y Zhang… - Optics …, 2021 - opg.optica.org
Phase-measuring phase-sensitive optical time-domain reflectometry (OTDR) has been
widely used for the distributed acoustic sensing. However, the demodulated phase signals …
widely used for the distributed acoustic sensing. However, the demodulated phase signals …