Singlemode-Multimode-Singlemode Fiber-Optic Interferometer Signal Demodulation Using MUSIC Algorithm and Machine Learning

The paper is aimed at improving the efficiency of signal processing for intermode fiber-optic interferometers. To do so, we propose to use the MUSIC algorithm. It is shown that the use of traditional methods for estimating the number of signal components leads to poor operation of the MUSIC algorith...

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Main Authors: Nikolai Ushakov, Aleksandr Markvart, Leonid Liokumovich
Format: Article
Language:English
Published: MDPI AG 2022-11-01
Series:Photonics
Subjects:
Online Access:https://www.mdpi.com/2304-6732/9/11/879
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author Nikolai Ushakov
Aleksandr Markvart
Leonid Liokumovich
author_facet Nikolai Ushakov
Aleksandr Markvart
Leonid Liokumovich
author_sort Nikolai Ushakov
collection DOAJ
description The paper is aimed at improving the efficiency of signal processing for intermode fiber-optic interferometers. To do so, we propose to use the MUSIC algorithm. It is shown that the use of traditional methods for estimating the number of signal components leads to poor operation of the MUSIC algorithm when applied to intermode interference signals. The possibility of using machine learning to estimate the number of signal components was investigated. The advantage of the proposed signal processing for demodulating the signals of an intermode interferometer over the Fourier transform has been experimentally demonstrated on the examples of simultaneous strain and curvature measurement, as well as pulse-wave sensing. The results can be also applied for processing signals of other optical-fiber sensors and multi-component signals of a different nature, for example, optical coherence tomography and radar signals.
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spelling doaj.art-6d608f05c2364004a7880dfdb8f14fc32023-11-24T09:38:03ZengMDPI AGPhotonics2304-67322022-11-0191187910.3390/photonics9110879Singlemode-Multimode-Singlemode Fiber-Optic Interferometer Signal Demodulation Using MUSIC Algorithm and Machine LearningNikolai Ushakov0Aleksandr Markvart1Leonid Liokumovich2Institute of Electronics and Telecommunications, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, RussiaInstitute of Electronics and Telecommunications, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, RussiaInstitute of Electronics and Telecommunications, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, RussiaThe paper is aimed at improving the efficiency of signal processing for intermode fiber-optic interferometers. To do so, we propose to use the MUSIC algorithm. It is shown that the use of traditional methods for estimating the number of signal components leads to poor operation of the MUSIC algorithm when applied to intermode interference signals. The possibility of using machine learning to estimate the number of signal components was investigated. The advantage of the proposed signal processing for demodulating the signals of an intermode interferometer over the Fourier transform has been experimentally demonstrated on the examples of simultaneous strain and curvature measurement, as well as pulse-wave sensing. The results can be also applied for processing signals of other optical-fiber sensors and multi-component signals of a different nature, for example, optical coherence tomography and radar signals.https://www.mdpi.com/2304-6732/9/11/879intermode interferometerspectral interferometryinterferometrypulse-wave sensingmachine learningoptical fiber sensor
spellingShingle Nikolai Ushakov
Aleksandr Markvart
Leonid Liokumovich
Singlemode-Multimode-Singlemode Fiber-Optic Interferometer Signal Demodulation Using MUSIC Algorithm and Machine Learning
Photonics
intermode interferometer
spectral interferometry
interferometry
pulse-wave sensing
machine learning
optical fiber sensor
title Singlemode-Multimode-Singlemode Fiber-Optic Interferometer Signal Demodulation Using MUSIC Algorithm and Machine Learning
title_full Singlemode-Multimode-Singlemode Fiber-Optic Interferometer Signal Demodulation Using MUSIC Algorithm and Machine Learning
title_fullStr Singlemode-Multimode-Singlemode Fiber-Optic Interferometer Signal Demodulation Using MUSIC Algorithm and Machine Learning
title_full_unstemmed Singlemode-Multimode-Singlemode Fiber-Optic Interferometer Signal Demodulation Using MUSIC Algorithm and Machine Learning
title_short Singlemode-Multimode-Singlemode Fiber-Optic Interferometer Signal Demodulation Using MUSIC Algorithm and Machine Learning
title_sort singlemode multimode singlemode fiber optic interferometer signal demodulation using music algorithm and machine learning
topic intermode interferometer
spectral interferometry
interferometry
pulse-wave sensing
machine learning
optical fiber sensor
url https://www.mdpi.com/2304-6732/9/11/879
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AT aleksandrmarkvart singlemodemultimodesinglemodefiberopticinterferometersignaldemodulationusingmusicalgorithmandmachinelearning
AT leonidliokumovich singlemodemultimodesinglemodefiberopticinterferometersignaldemodulationusingmusicalgorithmandmachinelearning