Highly robust demodulation algorithm for fiber optic interferometric sensors Article Swipe
Jie Yao
,
Xiaopeng Liu
,
Xuqiang Wu
,
Qiliang Xia
,
Siyu Zhang
,
Jinhui Shi
,
Yumei Pan
,
Benli Yu
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.1364/oe.569315
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.1364/oe.569315
We propose a phase demodulation algorithm in interferometric fiber-optic sensing systems based on 3 × 3 coupler demodulation with high robustness and strong disturbance resistance, which incorporates spectral decomposition into the three-dimensional ellipsoid fitting algorithm. This algorithm employs the least squares method to solve the ellipsoid parameters, then uses spectral decomposition to calculate the principal axis components for two-dimensional projection, and finally integrates the ATAN algorithm with phase unwrapping technology to achieve signal demodulation. Experimental results show that this algorithm improves the demodulation performance of the traditional ellipse fitting algorithm, achieving a linearity of 99.98% even when the amplitude of the excitation signal is below π/4. The algorithm was validated through experiments in different environments, under conditions with a maximum disturbance amplitude of 321 rad, its THD remains stably below 1% and the average SINAD is improved by approximately 13.8 dB, demonstrating enhanced robustness.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1364/oe.569315
- OA Status
- gold
- References
- 22
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4412628825
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- OpenAlex ID
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https://openalex.org/W4412628825Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1364/oe.569315Digital Object Identifier
- Title
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Highly robust demodulation algorithm for fiber optic interferometric sensorsWork title
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2025Year of publication
- Publication date
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2025-07-24Full publication date if available
- Authors
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Jie Yao, Xiaopeng Liu, Xuqiang Wu, Qiliang Xia, Siyu Zhang, Jinhui Shi, Yumei Pan, Benli YuList of authors in order
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https://doi.org/10.1364/oe.569315Publisher landing page
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YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
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https://doi.org/10.1364/oe.569315Direct OA link when available
- Concepts
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Interferometry, Optics, Demodulation, Fiber optic sensor, Optical fiber, Computer science, Algorithm, Physics, Telecommunications, Channel (broadcasting)Top concepts (fields/topics) attached by OpenAlex
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0Total citation count in OpenAlex
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22Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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| abstract_inverted_index.validated | 109 |
| abstract_inverted_index.algorithm, | 89 |
| abstract_inverted_index.algorithm. | 34 |
| abstract_inverted_index.components | 56 |
| abstract_inverted_index.conditions | 116 |
| abstract_inverted_index.excitation | 101 |
| abstract_inverted_index.integrates | 62 |
| abstract_inverted_index.robustness | 20 |
| abstract_inverted_index.technology | 69 |
| abstract_inverted_index.unwrapping | 68 |
| abstract_inverted_index.disturbance | 23, 120 |
| abstract_inverted_index.experiments | 111 |
| abstract_inverted_index.fiber-optic | 8 |
| abstract_inverted_index.parameters, | 46 |
| abstract_inverted_index.performance | 83 |
| abstract_inverted_index.projection, | 59 |
| abstract_inverted_index.resistance, | 24 |
| abstract_inverted_index.robustness. | 143 |
| abstract_inverted_index.traditional | 86 |
| abstract_inverted_index.Experimental | 74 |
| abstract_inverted_index.demodulation | 4, 17, 82 |
| abstract_inverted_index.incorporates | 26 |
| abstract_inverted_index.approximately | 138 |
| abstract_inverted_index.decomposition | 28, 50 |
| abstract_inverted_index.demodulation. | 73 |
| abstract_inverted_index.demonstrating | 141 |
| abstract_inverted_index.environments, | 114 |
| abstract_inverted_index.interferometric | 7 |
| abstract_inverted_index.two-dimensional | 58 |
| abstract_inverted_index.three-dimensional | 31 |
| cited_by_percentile_year | |
| countries_distinct_count | 1 |
| institutions_distinct_count | 8 |
| sustainable_development_goals[0].id | https://metadata.un.org/sdg/7 |
| sustainable_development_goals[0].score | 0.6299999952316284 |
| sustainable_development_goals[0].display_name | Affordable and clean energy |
| citation_normalized_percentile.value | 0.32228389 |
| citation_normalized_percentile.is_in_top_1_percent | False |
| citation_normalized_percentile.is_in_top_10_percent | False |