2018
DOI: 10.1088/1755-1315/189/3/032026
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Application of wavelet analysis in distributed optical fiber Brillouin temperature strain monitoring system

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Cited by 5 publications
(3 citation statements)
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“…For example, in [6][7][8], the use of low-pass filtering, modulation of the intensity of the pump wave and the probe wave, and also modulation of the wavelength of the probe signal is considered. The successful application of the wavelet-filtering of BGS was described in [9,10]. The methods considered in the framework of the first approach are quite effective, but due to their complexity (the use of atypical algorithms and a big amount of tuning parameters and coefficients) and, in some cases, the need to modify the hardware of typical Brillouin optical time domain analyzers/reflectometers (BOTDA/BOTDR), they cannot be used for a number of applications.…”
Section: Theoretical Backgroundmentioning
confidence: 99%
“…For example, in [6][7][8], the use of low-pass filtering, modulation of the intensity of the pump wave and the probe wave, and also modulation of the wavelength of the probe signal is considered. The successful application of the wavelet-filtering of BGS was described in [9,10]. The methods considered in the framework of the first approach are quite effective, but due to their complexity (the use of atypical algorithms and a big amount of tuning parameters and coefficients) and, in some cases, the need to modify the hardware of typical Brillouin optical time domain analyzers/reflectometers (BOTDA/BOTDR), they cannot be used for a number of applications.…”
Section: Theoretical Backgroundmentioning
confidence: 99%
“…Что касается второй задачи (повышение достоверности сигнала сенсора), то точность системы в случае бриллюэновской рефлектометрии напрямую зависит от качества определения BFS. Исследованиям источников шумов, методов шумоподавления и получения более точных данных о BGS и BFS посвящены многочисленные работы [9][10][11][12][13][14][15][16][17][18][19][20]. Условно можно выделить два основных подхода к получению реального значения BFS.…”
Section: измерения и синхронизацияunclassified
“…Работы авторов [13,14,15 из MDPI] посвящены применению низкочастотной фильтрации сигнала, модуляции интенсивности излучения накачки и зондирующей волны, а так же модуляции длины волны зондирующего сигнала. В работах [16,17] описано успешное применение вейвлет-фильтрации. Эти достаточно эффективные для поставленных задач методы, в то же время слишком сложные для рядового использования распределенных датчиков в ряде приложений.…”
Section: измерения и синхронизацияunclassified