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- W4220787516 abstract "Phase-sensitive optical time domain reflectometry (Φ-OTDR) technology is a disturbance monitoring technology based on Rayleigh scattering. The principle is that when sensing fiber is disturbed, the refractive index at the disturbance point will change, which will affect the intensity of Rayleigh backscattered light, so as to locate disturbance point. This technology can be used for perimeter security, intrusion monitoring etc. For a landslide about to slide, timely and accurate detection of intrusion events on it is of great significance for the evaluation of landslide state and timely response. In this paper, we proposed a method for landslide intrusion monitoring based on Φ-OTDR. We first studied the performance of the instrument used in this work. Then, different intrusion behaviors were simulated and monitored. And the signal characteristics of different behaviors were analyzed. Test results show that different intrusion events can be distinguished by event frequency." @default.
- W4220787516 created "2022-04-03" @default.
- W4220787516 creator A5061986741 @default.
- W4220787516 creator A5063472434 @default.
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- W4220787516 date "2022-03-27" @default.
- W4220787516 modified "2023-09-28" @default.
- W4220787516 title "Landslide intrusion monitoring method based on Ф-OTDR" @default.
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- W4220787516 doi "https://doi.org/10.1117/12.2625202" @default.
- W4220787516 hasPublicationYear "2022" @default.
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