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Qian He
at Chongqing Univ
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Author
Publications (3)
Proceedings Article | 2 June 2014 Paper
Effect of laser linewidth on phase-OTDR based distributed vibration sensing regime
Leilei Shi, Tao Zhu, Qian He, Shihong Huang
Proceedings Volume 9157, 91576H (2014) https://doi.org/10.1117/12.2059448
KEYWORDS: Fiber lasers, Spatial resolution, Sensing systems, Light sources, Laser scattering, Signal to noise ratio, Modulation, Spatial light modulators, Reflectometry, Semiconductor lasers
Proceedings Article | 2 June 2014 Paper
Real distributed vibration sensing with high frequency response based on pulse pair
Qian He, Tao Zhu, Xianghui Xiao, Dongmei Diao, Wei Huang, Xiaoyi Bao
Proceedings Volume 9157, 915761 (2014) https://doi.org/10.1117/12.2059252
KEYWORDS: Signal to noise ratio, Scattering, Sensing systems, Signal detection, Reflectometry, Sensors, Light scattering, Modulation, Signal processing, Spatial resolution
Proceedings Article | 15 October 2013 Paper
Distributed vibration sensing based on time-difference pulses
Qian He, Tao Zhu, Xianghui Xiao, Xiaoyi Bao
Proceedings Volume 8924, 89241M (2013) https://doi.org/10.1117/12.2034185
KEYWORDS: Backscatter, Spatial resolution, Signal detection, Sensors, Ferroelectric materials, Sensing systems, Modulation, Optical fibers, Vibrometry, Interferometers
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