Location of Weak Faults in Optical Fiber Links of Direct Current Control and Protection System

Jun Ruan; Hao Sun; Zhijun Zhu; Lin Tian; Wanli Xu; Baofeng Wu; Xiaohan Sun

doi:10.3788/CJL202148.2006002

[1] Tian S X, Cheng H Z, Chang H et al. Analysis and evaluation of social benefit from UHV power grid[J]. Electric Power Automation Equipment, 35, 145-153(2015).

[2] Pan C, Ye H L, Li M M et al. Compensation method for blind segments of distributed optical-fiber vibration sensor based on differential-coherent OTDR[C]. //OFC 2014, March 9-13, 2014, San Francisco, CA, USA., 1-3(2014).

[3] Zhu P Y, Xu C J, Ye W et al. Self-learning filtering method based on classification error in distributed fiber optic system[J]. IEEE Sensors Journal, 19, 8929-8933(2019).

[4] Wu H J, Liu J, Lu L D et al. Multi-point disturbance detection and high-precision positioning of polarization-sensitive optical time-domain reflectometry[J]. Journal of Lightwave Technology, 34, 5371-5377(2016).

[5] Zhu H, Shan X K, Sun X H. Analysis and demonstration of vibration waveform reconstruction in distributed optical fiber vibration sensing system[J]. Optical Engineering, 56, 107110(2017).

[6] Zhu H, Sun X H. Phase modulation analysis for optical fiber strain caused by raindrop collision[J]. Acta Physica Sinica, 67, 024211(2018).

[7] Zhu H, Pan C, Sun X H. Vibration pattern recognition and classification in OTDR based distributed optical-fiber vibration sensing system[J]. Proceedings of SPIE, 9062, 906205(2014).

[8] Pastor-Graells J, Cortés L R, Fernández-Ruiz M R et al. SNR enhancement in high-resolution phase-sensitive OTDR systems using chirped pulse amplification concepts[J]. Optics Letters, 42, 1728-1731(2017).

[9] He H J, Shao L Y, Li H C et al. SNR enhancement in phase-sensitive OTDR with adaptive 2-D bilateral filtering algorithm[J]. IEEE Photonics Journal, 9, 1-10(2017).

[10] Qin Z G, Chen H, Chang J. Signal-to-noise ratio enhancement based on empirical mode decomposition in phase-sensitive optical time domain reflectometry systems[J]. Sensors (Basel, Switzerland), 17, E1870(2017).

[11] Sheng Q H, Yu Z, Lu B et al. Real-time phase-sensitive optical time-domain reflectometry signal processing system based on heterogeneous accelerated computing[J]. Chinese Journal of Lasers, 47, 0104002(2020).

[12] Li L C, Lu B, Wang X et al. Internally modulated chirped pulse based direct detection type Φ-OTDR system with high signal-to-noise ratio and low cost[J]. Chinese Journal of Lasers, 46, 0806003(2019).

[13] He J, Chen X. Multi-resolution selection of SAR images and target recognition based on nonlinear correlation information entropy[J]. Laser & Optoelectronics Progress, 57, 221020(2020).

[14] Han B, Wu T J. Information entropy based reduct searching algorithm[C]. //Proceedings of the 2002 American Control Conference (IEEE Cat. No.CH37301), May 8-10, 2002, Anchorage, AK, USA., 4577-4582(2002).