Research Progress in Distributed Acoustic Sensing Techniques [PDF]
Sensors, 2022 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, high spatial resolution, and wide sensing bandwidth.
Ying Shang +9 more
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Surface distributed acoustic sensing for mineral exploration [PDF]
Scientific ReportsAs a receiver array for active-source seismic studies, the use of distributed acoustic sensing (DAS) technology is well established for vertical seismic profiling.
Lea Gyger +4 more
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Earthquake focal mechanisms with distributed acoustic sensing [PDF]
Nature Communications, 2023 Earthquake focal mechanisms provide critical in-situ insights about the subsurface faulting geometry and stress state.
Jiaxuan Li +3 more
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Review of a Specialty Fiber for Distributed Acoustic Sensing Technology
Photonics, 2022 Specialty fibers have introduced new levels of flexibility and variability in distributed fiber sensing applications. In particular, distributed acoustic sensing (DAS) systems utilized] the unique functions of specialty fibers to achieve performance ...
Yixiang Sun +6 more
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Distributed acoustic sensing with Michelson interferometer demodulation
Photonic Sensors, 2016 The distributed acoustic sensing (DAS) has been extensively studied and widely used. A distributed acoustic sensing system based on the unbalanced Michelson interferometer with phase generated carrier (PGC) demodulation was designed and tested.
Xiaohui Liu +6 more
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Filtering Strategies for Deformation-Rate Distributed Acoustic Sensing [PDF]
Sensors, 2022 Deformation-rate distributed acoustic sensing (DAS), made available by the unique designs of certain interrogator units, acquires seismic data that are theoretically equivalent to the along-fiber particle velocity motion recorded by geophones for ...
Jihyun Yang, Jeffrey Shragge, Ge Jin
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Real-Time Signal Processing for Distributed Acoustic Sensing and Acoustic Sensing Systems Under Non-Stationary Noise [PDF]
SensorsReal-time acoustic signal enhancement in non-stationary noise remains challenging, especially for sensing systems that must be causal, low latency, and interpretable.
Samuel Yaw Mensah +3 more
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Fibre optic distributed acoustic sensing of volcanic events [PDF]
Nature Communications, 2022 Fibre Optic Distributed Acoustic Sensing on Mount Etna provides new opportunities for monitoring volcanic processes and demonstrates nonlinear interaction of infrasound wave with scoria layer, mapping its thickness and illuminating hidden structures.
Philippe Jousset +8 more
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Physics-based earthquake early warning using distributed acoustic sensing [PDF]
Scientific ReportsWe present a physics-based point source earthquake early warning system using distributed acoustic sensing (DAS) data. All core modules of the system are based on physical principles of wave propagation, and models that describe the earthquake source and
Shahar Ben-Zeev, Itzhak Lior
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Distributed Acoustic Sensing of Sounds in Audible Spectrum in Realistic Optical Cable Infrastructure [PDF]
Scientific DataDistributed acoustic sensing (DAS) is an emerging technology with diverse applications in monitoring infrastructure, security systems, and environmental sensing.
Petr Dejdar +4 more
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