A literature review: Distributed acoustic sensing (DAS) geophysical applications over the past 20 years

Y Li, M Karrenbach… - … Acoustic Sensing in …, 2021 - Wiley Online Library
We briefly review the history of distributed acoustic sensing (DAS) as applied to geophysical
problems over the past 20 years, including a bibliography of about 900+ DAS‐related …

Efficient processing of distributed acoustic sensing data using a deep learning approach

L Shiloh, A Eyal, R Giryes - Journal of Lightwave Technology, 2019 - opg.optica.org
Automatic processing of fiber-optic distributed acoustic sensing (DAS) data is highly desired
in many applications. In particular, efficient algorithms for detection of events of interest and …

Deep learning approach for processing fiber-optic DAS seismic data

L Shiloh, A Eyal, R Giryes - Optical Fiber Sensors, 2018 - opg.optica.org
Developing automatic algorithmic tools for targets' detection and classification in a fiber-optic
Distributed Acoustic Sensing (DAS) system is a challenging task. The main hurdle is the …

Humidity-insensitive optical fibers for distributed sensing applications

TFP Neves, L Scherino, R Bernard, M Bouet… - Applied …, 2023 - opg.optica.org
Humidity is a critical environmental factor in various applications, and its temperature
dependence must be considered when developing thermo-hygrometer fiber sensors. The …

Evaluating phase errors in phase-sensitive optical time-domain reflectometry based on I/Q demodulation

X Lu, MA Soto, PJ Thomas, E Kolltveit - Journal of Lightwave …, 2020 - opg.optica.org
The phase errors resulting from in-phase/quadrature (I/Q) demodulation in phase-sensitive
optical time-domain reflectometry (? OTDR) are investigated theoretically, numerically, and …

Highly-sensitive distributed dynamic strain sensing via perfect periodic coherent codes

L Shiloh, N Levanon, A Eyal - Optical Fiber Sensors, 2018 - opg.optica.org
Distributed dynamic strain sensing is of interest in applications such as structural health
monitoring, shape sensing and more. Achieving high spatial resolution along with high …

How to specify and measure sensitivity in distributed acoustic sensing (DAS)?

H Gabai, A Eyal - 2017 25th Optical Fiber Sensors Conference …, 2017 - ieeexplore.ieee.org
In Rayleigh-scattering-based Distributed Acoustic Sensing (DAS) an optical fiber is
transformed into an array of thousands of'virtual microphones'. This approach has gained …

Field test and fading measurement of a distributed acoustic sensor system over a 50 km-long fiber

F Uyar, T Kartaloglu, I Ozdur… - Fiber Optic Sensors and …, 2018 - spiedigitallibrary.org
In this study, we present a direct detection distributed acoustic sensor based on phase-
sensitive optical time domain reflectometer (φ-OTDR) with long sensing range and high …

Robust and Efficient Algorithms for Millimeter-Wave Radar Localization and Imaging

W Zhao - 2024 - macsphere.mcmaster.ca
Millimeter wave radars have been widely used in military reconnaissance and remote
sensing, since they can acquire data in all-weather and all-day conditions. However, they …

Development and characterization of a direct detection fiber optic distributed acoustic sensor

F Uyar - 2018 - search.proquest.com
Phase-sensitive optical time domain re ectometer (φ-OTDR) based distributed acoustic
sensor (DAS) systems have attracted increasing attention in recent years due to their …