RU2003125922A - METHOD FOR IDENTIFICATION OF DAMAGED OPTICAL FIBER - Google Patents

METHOD FOR IDENTIFICATION OF DAMAGED OPTICAL FIBER Download PDF

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Publication number
RU2003125922A
RU2003125922A RU2003125922/28A RU2003125922A RU2003125922A RU 2003125922 A RU2003125922 A RU 2003125922A RU 2003125922/28 A RU2003125922/28 A RU 2003125922/28A RU 2003125922 A RU2003125922 A RU 2003125922A RU 2003125922 A RU2003125922 A RU 2003125922A
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RU
Russia
Prior art keywords
optical fiber
backscattering
damaged
control
identification
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RU2003125922/28A
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Russian (ru)
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RU2256161C2 (en
Inventor
Владимир Александрович Андреев (RU)
Владимир Александрович Андреев
Роман Владимирович Андреев (RU)
Роман Владимирович Андреев
Владимир Александрович Бурдин (RU)
Владимир Александрович Бурдин
Антон Владимирович Бурдин (RU)
Антон Владимирович Бурдин
Original Assignee
Поволжска государственна академи телекоммуникаций и информатики (RU)
Поволжская государственная академия телекоммуникаций и информатики
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Priority to RU2003125922/28A priority Critical patent/RU2256161C2/en
Publication of RU2003125922A publication Critical patent/RU2003125922A/en
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Publication of RU2256161C2 publication Critical patent/RU2256161C2/en

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Способ идентификации поврежденного оптического волокна, заключающийся в том, что предварительно измеряют контрольную характеристику обратного рассеяния оптического волокна, запоминают ее, впоследствии, с заданным интервалом времени, периодически измеряют текущую характеристику обратного рассеяния этого же волокна при таких же параметрах зондирования, а поврежденное оптическое волокно идентифицируют в результате сравнения контрольной и текущей характеристик обратного рассеяния оптического волокна, отличающийся тем, что вычисляют матрицуA method for identifying a damaged optical fiber, which consists in preliminarily measuring a control characteristic of the backscattering of the optical fiber, storing it, subsequently, with a predetermined time interval, periodically measuring the current characteristic of the backscattering of the same fiber with the same probing parameters, and the damaged optical fiber is identified by comparing the control and current characteristics of the backscattering of the optical fiber, characterized in that it is calculated the matrix
Figure 00000001
Figure 00000001
 где
Figure 00000002
ковариационная матрица контрольной и текущей характеристик обратного рассеяния оптического волокна, a DК дисперсия контрольной характеристики обратного рассеяния, и идентифицируют оптическое волокно как поврежденное при отклонении хотя бы одного из членов матрицы
Figure 00000003
от единицы больше заданного порогового значения.Where
Figure 00000002
covariance matrix of the control and current characteristics of the backscattering of the optical fiber, a D K the dispersion of the control characteristics of the backscattering, and the optical fiber is identified as damaged when at least one of the members of the matrix is deflected
Figure 00000003
one is greater than the specified threshold value.
RU2003125922/28A 2003-08-22 2003-08-22 Method for identification of damaged optical fiber RU2256161C2 (en)

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RU2003125922/28A RU2256161C2 (en) 2003-08-22 2003-08-22 Method for identification of damaged optical fiber

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RU2003125922/28A RU2256161C2 (en) 2003-08-22 2003-08-22 Method for identification of damaged optical fiber

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RU2256161C2 RU2256161C2 (en) 2005-07-10

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Publication number Priority date Publication date Assignee Title
RU2503939C1 (en) * 2012-07-17 2014-01-10 Федеральное государственное образовательное бюджетное учреждение высшего профессионального образования "Поволжский государственный университет телекоммуникаций и информатики" (ФГОБУ ВПО ПГУТИ) Method to determine place of optical fibre damage

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