A DUIRE algorithm for dynamic range improvement of phase-OTDR systems

Weikai Li; Xuelei Fu; Ning Jiang

doi:10.1117/12.3030386

3 June 2024 A DUIRE algorithm for dynamic range improvement of phase-OTDR systems

Weikai Li, Xuelei Fu, Ning Jiang

Proceedings Volume 13182, 2024 International Conference on Optoelectronic Information and Optical Engineering (OIOE 2024); 131821Q (2024) https://doi.org/10.1117/12.3030386
Event: 2024 International Conference on Optoelectronic Information and Optical Engineering (OIOE 2024), 2024, Kunming, China

Abstract

A differential-unwrap-integral-regression-extension (DUIRE) algorithm is proposed to improve the dynamic range of Φ -OTDR system. By applying differential and integral operations, the π -phase constraint can be alleviated, and then the upper limit of the system’s dynamic range can be improved. Through empirical mode decomposition (EMD) operation, the phase noise level is reduced, thereby extending the lower limit of the dynamic range. The experiment results show that compared with the traditional algorithm, the DUIRE algorithm is improved by 1.93 times on the maximum measurable strain (MAMS), and on phase noise level, the DUIRE is reduced by 5.64 dB rad / √Hz @1 kHz.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Weikai Li, Xuelei Fu, and Ning Jiang "A DUIRE algorithm for dynamic range improvement of phase-OTDR systems", Proc. SPIE 13182, 2024 International Conference on Optoelectronic Information and Optical Engineering (OIOE 2024), 131821Q (3 June 2024); https://doi.org/10.1117/12.3030386

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