Investigation of the Optimal Parameters of the Distributed Fiber Microphone Circuit Based on φ-OTDR for Speech Recognition
- Authors: Orlova M.V.1, Gritsenko T.V.1, Zhirnov A.A.1, Konstantinov Y.A.2, Turov A.T.2, Pnev A.B.1, Karasik V.E.1
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Affiliations:
- Bauman Moscow State Technical University
- Perm Federal Research Center, Ural Branch, Russian Academy of Sciences
- Issue: No 5 (2023)
- Pages: 129-133
- Section: ФИЗИЧЕСКИЕ ПРИБОРЫ ДЛЯ ЭКОЛОГИИ, МЕДИЦИНЫ, БИОЛОГИИ
- URL: https://journals.rcsi.science/0032-8162/article/view/138507
- DOI: https://doi.org/10.31857/S0032816223050208
- EDN: https://elibrary.ru/ZVBEJN
- ID: 138507
Cite item
Abstract
A study of the optimal parameters of a distributed fiber microphone circuit based on a laboratory setup of a phase-sensitive optical reflectometer (φ-OTDR), which reproduces the work of φ-OTDR at one point, has been carried out. Various schemes for constructing a microphone based on φ-OTDR and various sampling rates of the analog-to-digital converter are investigated. The optimal configuration of the φ-OTDR circuit is substantiated, which made it possible to ensure high quality of human speech recognition during voice recording by the proposed method with a sampling frequency of 40 kHz. In a standard phrase based on Harvard sentences containing 80 words, 71 words were recognized, i.e., 88.75% of their total number.
About the authors
M. V. Orlova
Bauman Moscow State Technical University
Email: manja254@yandex.ru
105005, Moscow, Russia
T. V. Gritsenko
Bauman Moscow State Technical University
Email: manja254@yandex.ru
105005, Moscow, Russia
A. A. Zhirnov
Bauman Moscow State Technical University
Email: manja254@yandex.ru
105005, Moscow, Russia
Yu. A. Konstantinov
Perm Federal Research Center, Ural Branch, Russian Academy of Sciences
Email: manja254@yandex.ru
614990, Perm, Russia
A. T. Turov
Perm Federal Research Center, Ural Branch, Russian Academy of Sciences
Email: manja254@yandex.ru
614990, Perm, Russia
A. B. Pnev
Bauman Moscow State Technical University
Email: manja254@yandex.ru
105005, Moscow, Russia
V. E. Karasik
Bauman Moscow State Technical University
Author for correspondence.
Email: manja254@yandex.ru
105005, Moscow, Russia
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