A Modification of the Backward Correlation Method for the Brillouin Frequency Shift Accurate Extraction

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Аннотация

An improved method for extracting the Brillouin frequency shift in postprocessing of a given Brillouin gain spectrum is presented. Modification of the method made it possible to expand the boundaries of its applicability to the region of noisy spectra with a signal-to-noise ratio (SNR) below 0 dB. The modified method can be successfully used in distributed fiber-optic sensors operating on the Brillouin scattering principle, especially in long-distance sensing lines.

Авторлар туралы

F. Barkov

Perm Federal Research Center, Ural Branch, Russian Academy of Sciences

Email: fbarkov@pstu.ru
614990, Perm, Russia

Yu. Konstantinov

Пермский федеральный исследовательский центр УрО РАН

Хат алмасуға жауапты Автор.
Email: fbarkov@pstu.ru
614990, Perm, Russia

Әдебиет тізімі

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© Ф.Л. Барков, Ю.А. Константинов, 2023