{"id":"https://openalex.org/W3020424800","doi":"https://doi.org/10.1109/access.2020.2990133","title":"Dynamic Phase Demodulation Algorithm for Phase-Sensitive OTDR With Direct Detection","display_name":"Dynamic Phase Demodulation Algorithm for Phase-Sensitive OTDR With Direct Detection","publication_year":2020,"publication_date":"2020-01-01","ids":{"openalex":"https://openalex.org/W3020424800","doi":"https://doi.org/10.1109/access.2020.2990133","mag":"3020424800"},"language":"en","primary_location":{"id":"doi:10.1109/access.2020.2990133","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2020.2990133","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8948470/09078062.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://ieeexplore.ieee.org/ielx7/6287639/8948470/09078062.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5012604520","display_name":"Yi Shi","orcid":"https://orcid.org/0000-0003-3575-4948"},"institutions":[{"id":"https://openalex.org/I32574673","display_name":"Shantou University","ror":"https://ror.org/01a099706","country_code":"CN","type":"education","lineage":["https://openalex.org/I32574673"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yi Shi","raw_affiliation_strings":["Guangdong Provincial Key Laboratory of Digital Signal and Image Processing, School of Engineering, Shantou University, Shantou, China"],"raw_orcid":"https://orcid.org/0000-0003-3575-4948","affiliations":[{"raw_affiliation_string":"Guangdong Provincial Key Laboratory of Digital Signal and Image Processing, School of Engineering, Shantou University, Shantou, China","institution_ids":["https://openalex.org/I32574673"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086057692","display_name":"Guifang Chen","orcid":"https://orcid.org/0000-0002-4470-9105"},"institutions":[{"id":"https://openalex.org/I32574673","display_name":"Shantou University","ror":"https://ror.org/01a099706","country_code":"CN","type":"education","lineage":["https://openalex.org/I32574673"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Guifang Chen","raw_affiliation_strings":["Guangdong Provincial Key Laboratory of Digital Signal and Image Processing, School of Engineering, Shantou University, Shantou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Guangdong Provincial Key Laboratory of Digital Signal and Image Processing, School of Engineering, Shantou University, Shantou, China","institution_ids":["https://openalex.org/I32574673"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5072279105","display_name":"Yuanye Wang","orcid":"https://orcid.org/0000-0002-3801-8324"},"institutions":[{"id":"https://openalex.org/I32574673","display_name":"Shantou University","ror":"https://ror.org/01a099706","country_code":"CN","type":"education","lineage":["https://openalex.org/I32574673"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yuanye Wang","raw_affiliation_strings":["Guangdong Provincial Key Laboratory of Digital Signal and Image Processing, School of Engineering, Shantou University, Shantou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Guangdong Provincial Key Laboratory of Digital Signal and Image Processing, School of Engineering, Shantou University, Shantou, China","institution_ids":["https://openalex.org/I32574673"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5011960711","display_name":"Lei Zhao","orcid":"https://orcid.org/0000-0003-4497-2197"},"institutions":[{"id":"https://openalex.org/I32574673","display_name":"Shantou University","ror":"https://ror.org/01a099706","country_code":"CN","type":"education","lineage":["https://openalex.org/I32574673"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lei Zhao","raw_affiliation_strings":["Guangdong Provincial Key Laboratory of Digital Signal and Image Processing, School of Engineering, Shantou University, Shantou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Guangdong Provincial Key Laboratory of Digital Signal and Image Processing, School of Engineering, Shantou University, Shantou, China","institution_ids":["https://openalex.org/I32574673"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5043499959","display_name":"Zhun Fan","orcid":"https://orcid.org/0000-0002-4232-8229"},"institutions":[{"id":"https://openalex.org/I32574673","display_name":"Shantou University","ror":"https://ror.org/01a099706","country_code":"CN","type":"education","lineage":["https://openalex.org/I32574673"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhun Fan","raw_affiliation_strings":["Guangdong Provincial Key Laboratory of Digital Signal and Image Processing, School of Engineering, Shantou University, Shantou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Guangdong Provincial Key Laboratory of Digital Signal and Image Processing, School of Engineering, Shantou University, Shantou, China","institution_ids":["https://openalex.org/I32574673"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I32574673"],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":0.7066,"has_fulltext":true,"cited_by_count":9,"citation_normalized_percentile":{"value":0.69156711,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"8","issue":null,"first_page":"77511","last_page":"77517"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10205","display_name":"Advanced Fiber Optic Sensors","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10205","display_name":"Advanced Fiber Optic Sensors","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10988","display_name":"Advanced Fiber Laser Technologies","score":0.9993000030517578,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10299","display_name":"Photonic and Optical Devices","score":0.9979000091552734,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/demodulation","display_name":"Demodulation","score":0.9436840415000916},{"id":"https://openalex.org/keywords/optical-time-domain-reflectometer","display_name":"Optical time-domain reflectometer","score":0.7696571350097656},{"id":"https://openalex.org/keywords/waveform","display_name":"Waveform","score":0.6615482568740845},{"id":"https://openalex.org/keywords/amplitude","display_name":"Amplitude","score":0.5629256367683411},{"id":"https://openalex.org/keywords/phase","display_name":"Phase (matter)","score":0.5389370322227478},{"id":"https://openalex.org/keywords/trigonometric-functions","display_name":"Trigonometric functions","score":0.5154317617416382},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.49175122380256653},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4674711227416992},{"id":"https://openalex.org/keywords/vibration","display_name":"Vibration","score":0.46455711126327515},{"id":"https://openalex.org/keywords/phase-detector","display_name":"Phase detector","score":0.4269358515739441},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.35397869348526},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.29062628746032715},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.2714255750179291},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.23327213525772095},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.22030165791511536},{"id":"https://openalex.org/keywords/optical-fiber","display_name":"Optical fiber","score":0.17297393083572388},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1559177041053772},{"id":"https://openalex.org/keywords/fiber-optic-sensor","display_name":"Fiber optic sensor","score":0.09725040197372437},{"id":"https://openalex.org/keywords/voltage","display_name":"Voltage","score":0.09489774703979492}],"concepts":[{"id":"https://openalex.org/C195251586","wikidata":"https://www.wikidata.org/wiki/Q1185939","display_name":"Demodulation","level":3,"score":0.9436840415000916},{"id":"https://openalex.org/C187327482","wikidata":"https://www.wikidata.org/wiki/Q580729","display_name":"Optical time-domain reflectometer","level":5,"score":0.7696571350097656},{"id":"https://openalex.org/C197424946","wikidata":"https://www.wikidata.org/wiki/Q1165717","display_name":"Waveform","level":3,"score":0.6615482568740845},{"id":"https://openalex.org/C180205008","wikidata":"https://www.wikidata.org/wiki/Q159190","display_name":"Amplitude","level":2,"score":0.5629256367683411},{"id":"https://openalex.org/C44280652","wikidata":"https://www.wikidata.org/wiki/Q104837","display_name":"Phase (matter)","level":2,"score":0.5389370322227478},{"id":"https://openalex.org/C178009071","wikidata":"https://www.wikidata.org/wiki/Q93344","display_name":"Trigonometric functions","level":2,"score":0.5154317617416382},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.49175122380256653},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4674711227416992},{"id":"https://openalex.org/C198394728","wikidata":"https://www.wikidata.org/wiki/Q3695508","display_name":"Vibration","level":2,"score":0.46455711126327515},{"id":"https://openalex.org/C110086884","wikidata":"https://www.wikidata.org/wiki/Q2085341","display_name":"Phase detector","level":3,"score":0.4269358515739441},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.35397869348526},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.29062628746032715},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.2714255750179291},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.23327213525772095},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.22030165791511536},{"id":"https://openalex.org/C194232370","wikidata":"https://www.wikidata.org/wiki/Q162","display_name":"Optical fiber","level":2,"score":0.17297393083572388},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1559177041053772},{"id":"https://openalex.org/C21651689","wikidata":"https://www.wikidata.org/wiki/Q1397427","display_name":"Fiber optic sensor","level":3,"score":0.09725040197372437},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.09489774703979492},{"id":"https://openalex.org/C113102252","wikidata":"https://www.wikidata.org/wiki/Q5591869","display_name":"Graded-index fiber","level":4,"score":0.0},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2020.2990133","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2020.2990133","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8948470/09078062.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:593a5965ecf345d6b421aba3d39bf0e2","is_oa":true,"landing_page_url":"https://doaj.org/article/593a5965ecf345d6b421aba3d39bf0e2","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 8, Pp 77511-77517 (2020)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2020.2990133","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2020.2990133","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8948470/09078062.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G2796004459","display_name":null,"funder_award_id":"61801283","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6792847097","display_name":null,"funder_award_id":"NTF18007","funder_id":"https://openalex.org/F4320310972","funder_display_name":"Shantou University"}],"funders":[{"id":"https://openalex.org/F4320310972","display_name":"Shantou University","ror":"https://ror.org/01a099706"},{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3020424800.pdf","grobid_xml":"https://content.openalex.org/works/W3020424800.grobid-xml"},"referenced_works_count":26,"referenced_works":["https://openalex.org/W1491384143","https://openalex.org/W1997314213","https://openalex.org/W2039541313","https://openalex.org/W2042788505","https://openalex.org/W2064013146","https://openalex.org/W2097988347","https://openalex.org/W2126321128","https://openalex.org/W2140409241","https://openalex.org/W2293808932","https://openalex.org/W2368474604","https://openalex.org/W2412512993","https://openalex.org/W2522593393","https://openalex.org/W2570214398","https://openalex.org/W2590958732","https://openalex.org/W2783431793","https://openalex.org/W2783910921","https://openalex.org/W2909420579","https://openalex.org/W2920926129","https://openalex.org/W2948030618","https://openalex.org/W2959455055","https://openalex.org/W2964041315","https://openalex.org/W2977263053","https://openalex.org/W2989043121","https://openalex.org/W6661244396","https://openalex.org/W6678620876","https://openalex.org/W7008111427"],"related_works":["https://openalex.org/W1996543123","https://openalex.org/W4388516297","https://openalex.org/W2010761432","https://openalex.org/W4389302182","https://openalex.org/W4389300491","https://openalex.org/W2318086275","https://openalex.org/W2532076631","https://openalex.org/W2073426091","https://openalex.org/W2152113158","https://openalex.org/W2379876752"],"abstract_inverted_index":{"A":[0],"dynamic":[1],"phase":[2,34,72,78,97],"demodulation":[3],"algorithm":[4],"for":[5,18],"direct":[6,21],"detection":[7,22],"\u03a6-OTDR":[8],"is":[9,25],"proposed":[10],"and":[11,28,75,88],"experimentally":[12],"demonstrated.":[13],"It":[14],"offers":[15,70],"a":[16,106],"way":[17],"single":[19],"channel":[20],"\u03a6-OTDR,":[23],"which":[24,104],"the":[26,40,44,48,52,57,77],"simplest":[27],"most":[29],"cost-effective":[30],"structure,":[31],"to":[32],"realize":[33],"demodulation.":[35],"Through":[36],"making":[37],"use":[38],"of":[39,56],"redundant":[41],"information":[42],"between":[43],"sensing":[45,58],"series":[46,59],"from":[47],"vibration":[49],"impacted":[50],"region,":[51],"local":[53],"extreme":[54],"points(LEP)":[55],"can":[60,79],"be":[61,80],"divided":[62],"into":[63],"two":[64],"types.":[65],"The":[66,95],"second":[67],"type":[68],"LEP":[69],"light":[71],"quadrant":[73],"information,":[74],"then":[76],"further":[81],"reconstructed":[82],"through":[83],"anti-trigonometric":[84],"function.":[85],"Single":[86],"frequency":[87],"amplitude-modulated":[89],"waveforms":[90],"have":[91],"been":[92],"correctly":[93],"demodulated.":[94],"demodulated":[96],"amplitude":[98],"agrees":[99],"well":[100],"with":[101],"theoretical":[102],"value,":[103],"shows":[105],"potential":[107],"application":[108],"in":[109],"strain":[110],"measurement.":[111]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":4},{"year":2020,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}