کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
849333 | 909263 | 2014 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Localization mechanisms and location methods of the disturbance sensor based on phase-sensitive OTDR
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The mathematic models of the disturbance sensor based on phase-sensitive optical time-domain reflectometry (OTDR) are established. On the basis of the models, the localization mechanisms of the conventional location techniques for phase-sensitive OTDR are simulated. The simulation results indicate that the frequency characteristics of the backscattered signal at disturbance region are different from other regions. According to the results, a novel location method relied on power spectrum analysis is described. The experiment is then conducted over a monitored length of 9 km with a spatial resolution of 100 m, which demonstrates that the described location approach can significantly enhanced signal-to-noise ratio (SNR) to 19.4 dB.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 125, Issue 9, May 2014, Pages 2099–2103
Journal: Optik - International Journal for Light and Electron Optics - Volume 125, Issue 9, May 2014, Pages 2099–2103
نویسندگان
Qin Li, Chunxi Zhang, Lijing Li, Xiang Zhong,