[1] Abhisek Ukil, Hubert Braendle, Peter Krippner. Distributed temperature sensing: Review of technology and applications[J]. IEEE Sensors Journal, 2012, 12(5): 885-892.

[2] Zhang Zaixuan, Wang Jianfeng, Liu Honglin, et al.. Experimental research of 30 km long distance distributed optical fiber Raman temperature sensor system[J]. Chinese J Lasers, 2004, 31(5): 613-616.

[3] Liu Jiansheng, Li Zheng. Physical essentials and design consideration of temperature calibration for distributed optic fiber Raman temperature sensing system[J]. Acta Optica Sinica, 2003, 23(10): 1168-1171.

[4] Song Muping, Ma Zhigang. Optical signal processing in Brillouin optical time domain reflector based Morlet wavelet transform[J]. Acta Optica Sinica, 2007, 27(5): 819-823.

[5] Song Muping, Li Zhicheng, Qiu Chao. A 50 km distributed optical fiber sensor based on Brillouin optical time-domain analyzer[J]. Chinese J Lasers, 2010, 37(6): 1426-1429.

[6] Bi Weihong, Yang Xipeng, Li Jingyang, et al.. Forward and backward Raman amplification of Brillouin scattering signal in Brillouin optical time domain reflectometer system[J]. Chinese J Lasers, 2014, 41(12): 1205007

[7] Li Yongqian, Li Xiaojuan, An Qi. New method to improve the performance of Brillouin optical time domain reflectometer system[J]. Acta Optica Sinica, 2015, 35(1): 0106003.

[8] M A Soto, X A Vinuesa, S M Lopez, et al.. Extending the real remoteness of long-range Brillouin optical time-domain fiber analyzers [J]. J Lightwave Technol, 2014, 32(1): 152-162.

[9] Y Muanenda, M Taki, F D Pasquale. Long-range accelerated BOTDA sensor using adaptive linear prediction and cyclic coding[J]. Opt Lett, 2014, 39(18): 5411-5414.

[10] H Izumita, T Sato, M Tateda, et al.. Brillouin OTD remploying optical frequency shifter using side-band generation technique with highspeed LN phase-modulator[J]. IEEE Photon Technol Lett, 1996, 8(12): 1674-1676.

[11] S M Maughan, H H Kee, T P Newson. 57 km single-ended spontaneous Brillouin-based distributed fiber temperature sensor using microwave coherent detection[J]. Opt Lett, 2001, 26(6): 331-333.

[12] Y Koyamada, M Imahama, K Kubota, et al.. Fiber-optic distributed strain and temperature sensing with very high measurand resolution over long range using coherent OTDR[J]. J Lightwave Technol, 2009, 27(9): 1142-1146.

[13] R Shimano, Y Iitsuka, K Kubbota, et al.. 31 km distributed temperature measurement with very high resolution using coherent-OTDR enhanced with bidirectional EDFA[C]. OECC, 2010: 330-331.

[14] O Gautheron, J B Leroy, P Marmier. COTDR performance optimization for amplified transmission systems[J]. IEEE Photon Technol Lett, 1997, 9(7): 1041-1043.

[15] Xiang Zhong, Chunxi Zhang, Lijing Li, et al.. Influences of laser source on phase-sensitivity optical time-domain reflectometer-based distributed intrusion sensor[J]. Appl Opt, 2014, 53(21): 4645-4650.

[16] Xiaonan Hui, Taihang Ye, Shilie Zheng, et al.. Space-frequency analysis with parallel computing in a phase-sensitive optical time-domain reflectometer distributed sensor[J]. Appl Opt, 2014, 53(28): 6586-6590.

[17] Zhou Jun, Pan Zhengqing, Ye Qing, et al.. Phase demodulation technology using a multi-frequency source for discrimination of interference-fading induced false alarms in a Φ -OTDR system[J]. Chinese J Lasers, 2013, 40(9): 0905003.

[18] Li Qin, Zhang Chunxi, Li Lijing, et al.. Influences of the frequency drift of the laser on location precision of the phase-sensitive optical time-domain reflectometry[J]. Chinese J Lasers, 2014, 41(3): 0305003.

[19] Ren Meizhen, Xu Tuanwei, Zhang Faxiang, et al.. Statistical properties of Rayleigh backscattered light in single-mode fibers caused by a highly coherent laser[J]. Chinese J Lasers, 2013, 40(1): 0105001.

[20] Lü Yuelan, Xing Yongwei. Investigation on Rayleigh scattering waveform in phase optical time domain reflectometer[J]. Chinese J Lasers, 2011, 31(8): 0819001.

[21] Zhi Yang, Shi Pengxiang, Li Yongqian. Research on COTDR for measuring distributed temperature and strain[J]. Mechanic Automation and Control Engineering, 2011: 590-593.