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 …
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 is a critical environmental factor in various applications, and its temperature dependence must be considered when developing thermo-hygrometer fiber sensors. The …
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 …
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 …
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 …
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 …
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 …
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 …