Signal detection algorithms for interferometric sensors with harmonic phase modulation: miscalibration of modulation parameters
In the current paper, we have developed an analytical apparatus, allowing to calculate the phase error, produced by miscalibration of modulation parameters. The case of harmonic modulation is considered, the analysis is performed for cases of two parameters miscalibration: amplitude and start phase....
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creator | Liokumovich, Leonid Muravyov, Konstantin Skliarov, Philipp Ushakov, Nikolai |
description | In the current paper, we have developed an analytical apparatus, allowing to calculate the phase error, produced by miscalibration of modulation parameters. The case of harmonic modulation is considered, the analysis is performed for cases of two parameters miscalibration: amplitude and start phase. Two demodulation algorithms are considered: conventional 4-point algorithm, based on ordinary least squares approach and previously developed 4+1 algorithm with high immunity to phase error, induced by change of target phase on demodulation interval. Predictions, given by developed analytical equations are verified by means of numeric modeling. |
doi_str_mv | 10.48550/arxiv.1904.13140 |
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The case of harmonic modulation is considered, the analysis is performed for cases of two parameters miscalibration: amplitude and start phase. Two demodulation algorithms are considered: conventional 4-point algorithm, based on ordinary least squares approach and previously developed 4+1 algorithm with high immunity to phase error, induced by change of target phase on demodulation interval. Predictions, given by developed analytical equations are verified by means of numeric modeling.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.1904.13140</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Algorithms ; Demodulation ; Immunity ; Mathematical models ; Parameters ; Phase error ; Phase modulation ; Phase transitions ; Physics - Instrumentation and Detectors ; Physics - Optics ; Signal detection</subject><ispartof>arXiv.org, 2019-04</ispartof><rights>2019. 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subjects | Algorithms Demodulation Immunity Mathematical models Parameters Phase error Phase modulation Phase transitions Physics - Instrumentation and Detectors Physics - Optics Signal detection |
title | Signal detection algorithms for interferometric sensors with harmonic phase modulation: miscalibration of modulation parameters |
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