A Fading-Discrimination Method for Distributed Vibration Sensor Using Coherent Detection of \varphi -OTDR
We have proposed an effective method to discriminate the false alarm peaks induced by fading effect in distributed fiber-optic vibration sensing systems based on coherent heterodyne detection of phase-sensitive optical time-domain reflectometer (φ-OTDR). By comparison of the demodulated phase of bac...
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| Veröffentlicht in: | IEEE photonics technology letters 2016-12, Vol.28 (23), p.2752-2755 |
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| container_title | IEEE photonics technology letters |
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| creator | Pang, Fufei He, Mengting Liu, Huanhuan Mei, Xuanwei Tao, Jiaming Zhang, Tongzhi Zhang, Xiaobei Chen, Na Wang, Tingyun |
| description | We have proposed an effective method to discriminate the false alarm peaks induced by fading effect in distributed fiber-optic vibration sensing systems based on coherent heterodyne detection of phase-sensitive optical time-domain reflectometer (φ-OTDR). By comparison of the demodulated phase of backscattered light returned from the location of the sensing fiber before and behind the alarm peaks, the false alarm peaks can be distinguished from real vibration alarm peaks. We have demonstrated a fiber-optic distributed vibration sensor with efficient fading discrimination based on φ-OTDR system that has a measurement range of 2.5 km, a spatial resolution of 2.5 m, and a signal-to-noise ratio of 16 dB. The results provide a simple and low-cost approach for the false alarm discrimination in all-fiber φ-OTDR systems. |
| doi_str_mv | 10.1109/LPT.2016.2616023 |
| format | Article |
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By comparison of the demodulated phase of backscattered light returned from the location of the sensing fiber before and behind the alarm peaks, the false alarm peaks can be distinguished from real vibration alarm peaks. We have demonstrated a fiber-optic distributed vibration sensor with efficient fading discrimination based on φ-OTDR system that has a measurement range of 2.5 km, a spatial resolution of 2.5 m, and a signal-to-noise ratio of 16 dB. The results provide a simple and low-cost approach for the false alarm discrimination in all-fiber φ-OTDR systems.</description><identifier>ISSN: 1041-1135</identifier><identifier>EISSN: 1941-0174</identifier><identifier>DOI: 10.1109/LPT.2016.2616023</identifier><identifier>CODEN: IPTLEL</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Alarm systems ; Backscattering ; Discrimination ; Fading ; Fading channels ; False alarms ; Fiber optics ; Fiber optics sensors ; Noise levels ; Optical fiber amplifiers ; Optical fiber sensors ; Optical fibers ; optical time domain reflectometry ; phase measurement ; Probes ; Rayleigh scattering ; Signal to noise ratio ; Spatial resolution ; Vibration ; Vibrations</subject><ispartof>IEEE photonics technology letters, 2016-12, Vol.28 (23), p.2752-2755</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2016</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c1364-83139bfbd4fd9c3e7ff1b29ab0a13d0cf990cfc6b903e192ae21461e3bba51183</citedby><cites>FETCH-LOGICAL-c1364-83139bfbd4fd9c3e7ff1b29ab0a13d0cf990cfc6b903e192ae21461e3bba51183</cites><orcidid>0000-0002-8925-6947 ; 0000-0002-7106-4584</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/7586068$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27903,27904,54737</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/7586068$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Pang, Fufei</creatorcontrib><creatorcontrib>He, Mengting</creatorcontrib><creatorcontrib>Liu, Huanhuan</creatorcontrib><creatorcontrib>Mei, Xuanwei</creatorcontrib><creatorcontrib>Tao, Jiaming</creatorcontrib><creatorcontrib>Zhang, Tongzhi</creatorcontrib><creatorcontrib>Zhang, Xiaobei</creatorcontrib><creatorcontrib>Chen, Na</creatorcontrib><creatorcontrib>Wang, Tingyun</creatorcontrib><title>A Fading-Discrimination Method for Distributed Vibration Sensor Using Coherent Detection of \varphi -OTDR</title><title>IEEE photonics technology letters</title><addtitle>LPT</addtitle><description>We have proposed an effective method to discriminate the false alarm peaks induced by fading effect in distributed fiber-optic vibration sensing systems based on coherent heterodyne detection of phase-sensitive optical time-domain reflectometer (φ-OTDR). By comparison of the demodulated phase of backscattered light returned from the location of the sensing fiber before and behind the alarm peaks, the false alarm peaks can be distinguished from real vibration alarm peaks. We have demonstrated a fiber-optic distributed vibration sensor with efficient fading discrimination based on φ-OTDR system that has a measurement range of 2.5 km, a spatial resolution of 2.5 m, and a signal-to-noise ratio of 16 dB. The results provide a simple and low-cost approach for the false alarm discrimination in all-fiber φ-OTDR systems.</description><subject>Alarm systems</subject><subject>Backscattering</subject><subject>Discrimination</subject><subject>Fading</subject><subject>Fading channels</subject><subject>False alarms</subject><subject>Fiber optics</subject><subject>Fiber optics sensors</subject><subject>Noise levels</subject><subject>Optical fiber amplifiers</subject><subject>Optical fiber sensors</subject><subject>Optical fibers</subject><subject>optical time domain reflectometry</subject><subject>phase measurement</subject><subject>Probes</subject><subject>Rayleigh scattering</subject><subject>Signal to noise ratio</subject><subject>Spatial resolution</subject><subject>Vibration</subject><subject>Vibrations</subject><issn>1041-1135</issn><issn>1941-0174</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kNFLwzAQxosoOKfvgi8BnztzSZo2j2NzKkwmuvkklKS9uAxtZ9IJ_vdmdvhyd_B93x33S5JLoCMAqm7mT8sRoyBHTIKkjB8lA1ACUgq5OI4zjTMAz06TsxA2lILIuBgkbkxmunbNezp1ofLu0zW6c21DHrFbtzWxrSdR6bwzuw5r8uqM7w0v2IQorkIMk0m7Ro9NR6bYYfWnt5a8fWu_XTuSLpbT5_PkxOqPgBeHPkxWs9vl5D6dL-4eJuN5WgGXIi04cGWsqYWtVcUxtxYMU9pQDbymlVUqlkoaRTmCYhoZCAnIjdEZQMGHyXW_d-vbrx2Grty0O9_Ek2VUcwAmmIgu2rsq34bg0Zbb-Lz2PyXQcg-0jEDLPdDyADRGrvqIQ8R_e54VksqC_wJTd3Gp</recordid><startdate>20161201</startdate><enddate>20161201</enddate><creator>Pang, Fufei</creator><creator>He, Mengting</creator><creator>Liu, Huanhuan</creator><creator>Mei, Xuanwei</creator><creator>Tao, Jiaming</creator><creator>Zhang, Tongzhi</creator><creator>Zhang, Xiaobei</creator><creator>Chen, Na</creator><creator>Wang, Tingyun</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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By comparison of the demodulated phase of backscattered light returned from the location of the sensing fiber before and behind the alarm peaks, the false alarm peaks can be distinguished from real vibration alarm peaks. We have demonstrated a fiber-optic distributed vibration sensor with efficient fading discrimination based on φ-OTDR system that has a measurement range of 2.5 km, a spatial resolution of 2.5 m, and a signal-to-noise ratio of 16 dB. The results provide a simple and low-cost approach for the false alarm discrimination in all-fiber φ-OTDR systems.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/LPT.2016.2616023</doi><tpages>4</tpages><orcidid>https://orcid.org/0000-0002-8925-6947</orcidid><orcidid>https://orcid.org/0000-0002-7106-4584</orcidid></addata></record> |
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| subjects | Alarm systems Backscattering Discrimination Fading Fading channels False alarms Fiber optics Fiber optics sensors Noise levels Optical fiber amplifiers Optical fiber sensors Optical fibers optical time domain reflectometry phase measurement Probes Rayleigh scattering Signal to noise ratio Spatial resolution Vibration Vibrations |
| title | A Fading-Discrimination Method for Distributed Vibration Sensor Using Coherent Detection of \varphi -OTDR |
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