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How sensitive is distributed acoustic sensing?
Seventh European Workshop on Optical Fibre Sensors, 2019We present fundamental limits on the strain resolution of phase sensitive distributed acoustic sensing based on considerations of thermal noise. These limits suggest that, despite ongoing advances, distributed sensors are unlikely to approach the sensing performance of traditional geophones and hydrophones.
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Distributed acoustic sensing: System and experiments
2017 Opto-Electronics and Communications Conference (OECC) and Photonics Global Conference (PGC), 2017This paper presents a fully distributed fiber acoustic sensing (DAS) system. Combined with the phase-sensitive optical time domain reflectrometry (Φ-OTDR) technology and phase generated carrier (PGC) demodulation technology, the system can detect and acquire seismic wave signal in real time.
Tuanwei Xu +4 more
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Distributed acoustic sensing with ocean applications
The Journal of the Acoustical Society of AmericaExtensive monitoring of acoustical activities is important for many fields, including biology, security, and ocean and Earth science. Distributed acoustic sensing (DAS) is an evolving technique for continuous, wide-coverage measurements of mechanical vibrations across oceans.
Angeliki Xenaxi +3 more
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Distributed acoustic sensing in shallow water
The Journal of the Acoustical Society of America, 2006The significance of Leonid Brekhovskikh to the ocean acoustics is undisputed. He was pioneering not only in terms of fundamental understanding of the ocean acoustic waveguide, but also the development of efficient and numerically stable approaches to propagation of sound in a stratified ocean. As such he has been an inspiration to a whole generation of
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Fluid pressure sensing with fiber-optic distributed acoustic sensing
The Leading Edge, 2017Measurement of interwell hydraulic interference is a fundamental method of characterizing the permeability structure of geothermal, carbon sequestration, and petroleum reservoirs. A new system of pressure measurement is demonstrated that utilizes fiber-optic cable.
Matthew Becker +4 more
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Multicomponent distributed acoustic sensing
SEG Technical Program Expanded Abstracts 2016, 2016Ivan Lim Chen Ning, Paul Sava
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Xdas: a Python Framework for Distributed Acoustic Sensing
Seismological Research LettersXdas is a Python library designed to manipulate Distributed Acoustic Sensing (DAS) data. It provides a unified abstraction for reading any DAS file format into a standardized Python object, streamlining data handling across different acquisition systems.
Alister Trabattoni +6 more
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Distributed acoustic sensing for volcano monitoring
This thesis explores the potential of distributed acoustic sensing (DAS) for volcano monitoring. The last decade has seen a rapid rise in the use of fibre-optic technologies for seismic sensing, of which DAS has been one of the most well-established. DAS interrogates an optical fibre, resulting in a seismic network with a high spatiotemporal resolution.openaire +1 more source
Denoising Distributed Acoustic Sensing (DAS) for shallow water acoustic observations
The Journal of the Acoustical Society of AmericaDistributed Acoustic Sensing (DAS) offers a cost-effective solution for long-term acoustic monitoring in shallow water environments. However, field data from multiple DAS experiments reveal significant noise, particularly at frequencies above 1 Hz, which challenges its use for acoustic studies.
Wenbo Wu +2 more
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Phase BOTDR based Distributed Acoustic Sensing
2021 13th International Conference on Electrical and Electronics Engineering (ELECO), 2021Günday, Abdurrahman, Bilgen, Mert
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