Recent Progress in Fiber-Optic Acoustic Sensor and Its Applications:
In this review, FOASs have been divided into acoustic-structure-optic coupling (ASOC) type and acoustic-optic coupling (AOC) type according to the activation of the acoustic signal on the
Coherently parallel fiber-optic distributed acoustic sensing using dual
Fiber-optic distributed acoustic sensing (DAS) has proven to be a revolutionary technology for the detection of seismic and acoustic waves with ultralarge scale and ultrahigh
Assessing the Impact of Borehole Coupling Materials on
In this study, we investigate quantitatively the effect of surrounding coupling media on the response of a downhole FO-DAS system through a series of laboratory simulation tests.
Near-Field Acoustic Imaging Using Fiber-Optic Distributed Acoustic
In this work, we propose a beamforming-based acoustic imaging method that can reconstruct the acoustic energy around optical fibers using distributed acoustic sensing
Systematic review of fiber-optic distributed acoustic sensing
Rayleigh backscattering in optical fibers is employed in fiber-optic DAS, where acoustic disturbances induce fluctuations in light dispersion that are monitored throughout the entire fiber
Distributed acoustic sensing
In DAS, the optical fiber cable becomes the sensing element and measurements are made, and in part processed, using an attached optoelectronic device. Such a system allows acoustic frequency strain
Coherently parallel fiber-optic distributed acoustic
Fiber-optic distributed acoustic sensing (DAS) has proven to be a revolutionary technology for the detection of seismic and acoustic waves with
Enhancing fibre-optic distributed acoustic sensing
Here, the authors demonstrate a blind and sparse near-field array signal processing approach to enhance the measurement quality of fibre-optic distributed acoustic sensors.
Developing a distributed acoustic sensing seismic land streamer
Motivated by existing cabled seismic land-streamer designs, we develop a distributed acoustic sensing (DAS) land-streamer system for high-resolution near-surface seismic data acquisition.
Benchmarking Machine Learning Methods for Distributed
In this study, we conducted a comprehensive benchmarking of various machine learning models for distributed acoustic sensing classification, assessing their performance across mul-tiple datasets and
Distributed acoustic sensing VSP coupling noise suppression based
In this paper, an adaptive suppression method of optical fiber coupling noise based on local sparse optimization is proposed.
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