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28 August 2019 Short spatial resolutions retrieval from a long pulse BOTDA trace
Sheng Wang, Zhisheng Yang, Simon Zaslawski, Luc Thévenaz
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Proceedings Volume 11199, Seventh European Workshop on Optical Fibre Sensors; 111992B (2019) https://doi.org/10.1117/12.2540927
Event: Seventh European Workshop on Optical Fibre Sensors, 2019, Limassol, Cyprus
Abstract
A novel technique is proposed to obtain a flexible and variable spatial resolution from a conventional Brillouin optical time-domain analyzers using a fast post-processing algorithm. The approach is very attractive since a fine spatial resolution can be obtained from a coarsely resolved measurement obtained using a pulse longer than the acoustic settling time, leading to a better overall sensing performance, in particular for sub-metric spatial resolutions, with no compromises on sensing range and measurement time.
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Sheng Wang, Zhisheng Yang, Simon Zaslawski, and Luc Thévenaz "Short spatial resolutions retrieval from a long pulse BOTDA trace", Proc. SPIE 11199, Seventh European Workshop on Optical Fibre Sensors, 111992B (28 August 2019); https://doi.org/10.1117/12.2540927
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KEYWORDS
Spatial resolution
Convolution
Signal to noise ratio
Fiber optics
Fiber optics sensors
Scattering
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