Pulse Intensity Coding Phase-Sensitive OTDR With Mismatched Filtering
Optical pulse coding phase-sensitive optical time-domain reflectometry (<inline-formula><tex-math notation="LaTeX">$\Phi$</tex-math></inline-formula>-OTDR) sends a series of pulses into the sensing fiber to enhance signal-to-noise ratio (SNR). And the spatial resolu...
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/10526349/ |
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| author | Yaning Xie Tuanwei Xu Kai Cao Jing Zhang Dimin Deng Fang Li |
| author_facet | Yaning Xie Tuanwei Xu Kai Cao Jing Zhang Dimin Deng Fang Li |
| author_sort | Yaning Xie |
| collection | DOAJ |
| description | Optical pulse coding phase-sensitive optical time-domain reflectometry (<inline-formula><tex-math notation="LaTeX">$\Phi$</tex-math></inline-formula>-OTDR) sends a series of pulses into the sensing fiber to enhance signal-to-noise ratio (SNR). And the spatial resolution is determined by the subpulse duration. The current challenges in optical pulse coding <inline-formula><tex-math notation="LaTeX">$\Phi$</tex-math></inline-formula>-OTDR include long measurement time, complex coding design, and intricate modulation process. In this paper, pulse intensity coding and mismatched filtering is introduced, which could reach the theoretical measurement time determined by the fiber length. Additionally, it also simplifies coding design and modulation process. In order to obtain satisfactory decoding results, the least-squares criterion is used to design the mismatched filter. Experimental result demonstrates a 6.6 dB improvement in the SNR of the demodulated signal using a 10-bit coding pulse. |
| format | Article |
| id | doaj-art-19a57ec41aa44f7e8b34cd5fae738953 |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-19a57ec41aa44f7e8b34cd5fae7389532025-08-20T03:30:52ZengIEEEIEEE Photonics Journal1943-06552024-01-011631710.1109/JPHOT.2024.339905510526349Pulse Intensity Coding Phase-Sensitive OTDR With Mismatched FilteringYaning Xie0https://orcid.org/0009-0005-9030-5143Tuanwei Xu1https://orcid.org/0000-0003-1128-0944Kai Cao2https://orcid.org/0000-0002-8506-1843Jing Zhang3https://orcid.org/0009-0009-8698-3557Dimin Deng4https://orcid.org/0009-0001-5053-8445Fang Li5https://orcid.org/0000-0001-9420-1097State Key Laboratories of Transducer Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratories of Transducer Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratories of Transducer Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratories of Transducer Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratories of Transducer Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratories of Transducer Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, ChinaOptical pulse coding phase-sensitive optical time-domain reflectometry (<inline-formula><tex-math notation="LaTeX">$\Phi$</tex-math></inline-formula>-OTDR) sends a series of pulses into the sensing fiber to enhance signal-to-noise ratio (SNR). And the spatial resolution is determined by the subpulse duration. The current challenges in optical pulse coding <inline-formula><tex-math notation="LaTeX">$\Phi$</tex-math></inline-formula>-OTDR include long measurement time, complex coding design, and intricate modulation process. In this paper, pulse intensity coding and mismatched filtering is introduced, which could reach the theoretical measurement time determined by the fiber length. Additionally, it also simplifies coding design and modulation process. In order to obtain satisfactory decoding results, the least-squares criterion is used to design the mismatched filter. Experimental result demonstrates a 6.6 dB improvement in the SNR of the demodulated signal using a 10-bit coding pulse.https://ieeexplore.ieee.org/document/10526349/Pulse codingmismatched filteringleast-squares criterionphase-sensitive optical time-domain reflectometry |
| spellingShingle | Yaning Xie Tuanwei Xu Kai Cao Jing Zhang Dimin Deng Fang Li Pulse Intensity Coding Phase-Sensitive OTDR With Mismatched Filtering IEEE Photonics Journal Pulse coding mismatched filtering least-squares criterion phase-sensitive optical time-domain reflectometry |
| title | Pulse Intensity Coding Phase-Sensitive OTDR With Mismatched Filtering |
| title_full | Pulse Intensity Coding Phase-Sensitive OTDR With Mismatched Filtering |
| title_fullStr | Pulse Intensity Coding Phase-Sensitive OTDR With Mismatched Filtering |
| title_full_unstemmed | Pulse Intensity Coding Phase-Sensitive OTDR With Mismatched Filtering |
| title_short | Pulse Intensity Coding Phase-Sensitive OTDR With Mismatched Filtering |
| title_sort | pulse intensity coding phase sensitive otdr with mismatched filtering |
| topic | Pulse coding mismatched filtering least-squares criterion phase-sensitive optical time-domain reflectometry |
| url | https://ieeexplore.ieee.org/document/10526349/ |
| work_keys_str_mv | AT yaningxie pulseintensitycodingphasesensitiveotdrwithmismatchedfiltering AT tuanweixu pulseintensitycodingphasesensitiveotdrwithmismatchedfiltering AT kaicao pulseintensitycodingphasesensitiveotdrwithmismatchedfiltering AT jingzhang pulseintensitycodingphasesensitiveotdrwithmismatchedfiltering AT dimindeng pulseintensitycodingphasesensitiveotdrwithmismatchedfiltering AT fangli pulseintensitycodingphasesensitiveotdrwithmismatchedfiltering |