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Performance enhancement of noisy distributed acoustic sensor using normalized differential method
Author(s): Islam Ashry; Yuan Mao; Mohd Sharizal Alias; Tien Khee Ng; Frode Hveding; Muhammad Arsalan; Boon S. Ooi
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Paper Abstract

We experimentally report a normalized differential signal processing technique to improve the signal-to-noise ratio (SNR) of a fiber optic distributed acoustic sensor (DAS), in the time-domain. The introduced method is calibrated through comparing it with the typical differential method when using a noisy DAS system that includes a relatively wide linewidth laser. For this system, the normalized differential method allows measuring the vibration locations, produced by a piezoelectric transducer (PZT) cylinder, with enhanced SNR.

Paper Details

Date Published: 9 September 2019
PDF: 5 pages
Proc. SPIE 11105, Novel Optical Systems, Methods, and Applications XXII, 1110507 (9 September 2019); doi: 10.1117/12.2523757
Show Author Affiliations
Islam Ashry, King Abdullah Univ. of Science and Technology (Saudi Arabia)
Yuan Mao, King Abdullah Univ. of Science and Technology (Saudi Arabia)
Mohd Sharizal Alias, King Abdullah Univ. of Science and Technology (Saudi Arabia)
Tien Khee Ng, King Abdullah Univ. of Science and Technology (Saudi Arabia)
Frode Hveding, Saudi Aramco (Saudi Arabia)
Muhammad Arsalan, Saudi Aramco (Saudi Arabia)
Boon S. Ooi, King Abdullah Univ. of Science and Technology (Saudi Arabia)


Published in SPIE Proceedings Vol. 11105:
Novel Optical Systems, Methods, and Applications XXII
Cornelius F. Hahlweg; Joseph R. Mulley, Editor(s)

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