Interference Fading Suppression Solution for Phase-sensitive OTDR with Sub Signal Phase Reconstruction

Deyu Xu1; Feihong Yu2; Shuaiqi Liu2; Huaxin Gu1; Liyang Shao1

10.1109/ICOCN59242.2023.10236069

2023-07-31

2330-7986

979-8-3503-4351-9

2023 21st International Conference on Optical Communications and Networks (ICOCN)

1-3

31 July-3 Aug. 2023

Qufu, China

An interference fading suppression scheme based on phase-sensitive optical time-domain reflectometry ($\Phi$-OTDR) system is proposed. This scheme is based on the energy distribution of sub signals for phase selection. The experimental results show that this scheme has a good effect in suppressing interference fading. The signal-to-noise ratio (SNR) of the demodulated vibration signal exceeds 35dB. Since this method only processes data in the digital domain without changing the system structure, it does not increase system costs.

phase-sensitive optical time-domain reflectometry interference fading suppression phase demodulation phase selection

第一

EI

20234014844396

Demodulation ; Optical signal processing ; Optical variables measurement ; Permittivity measurement ; Reflection ; Reflectometers ; Signal reconstruction

Information Theory and Signal Processing:716.1 ; Optical Instruments:941.3 ; Optical Variables Measurements:941.4 ; Electric Variables Measurements:942.2

IEEE

1.Innovation and Entrepreneurship College, Southern University of Science and Technology, Shenzhen, China
2.Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen, China

Deyu Xu,Feihong Yu,Shuaiqi Liu,et al. Interference Fading Suppression Solution for Phase-sensitive OTDR with Sub Signal Phase Reconstruction[C],2023:1-3.