{"id":"https://openalex.org/W2942339453","doi":"https://doi.org/10.1186/s13638-018-1320-1","title":"Frequency estimation and tracking by two-layered iterative DFT with re-sampling in non-steady states of power system","display_name":"Frequency estimation and tracking by two-layered iterative DFT with re-sampling in non-steady states of power system","publication_year":2019,"publication_date":"2019-02-01","ids":{"openalex":"https://openalex.org/W2942339453","doi":"https://doi.org/10.1186/s13638-018-1320-1","mag":"2942339453"},"language":"en","primary_location":{"id":"doi:10.1186/s13638-018-1320-1","is_oa":true,"landing_page_url":"https://doi.org/10.1186/s13638-018-1320-1","pdf_url":"https://jwcn-eurasipjournals.springeropen.com/track/pdf/10.1186/s13638-018-1320-1","source":{"id":"https://openalex.org/S82675988","display_name":"EURASIP Journal on Wireless Communications and Networking","issn_l":"1687-1472","issn":["1687-1472","1687-1499"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Wireless Communications and Networking","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://jwcn-eurasipjournals.springeropen.com/track/pdf/10.1186/s13638-018-1320-1","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5087232179","display_name":"Hui Li","orcid":"https://orcid.org/0000-0002-1846-7958"},"institutions":[{"id":"https://openalex.org/I20942203","display_name":"Hainan University","ror":"https://ror.org/03q648j11","country_code":"CN","type":"education","lineage":["https://openalex.org/I20942203"]},{"id":"https://openalex.org/I4210156260","display_name":"Hainan Marine Monitoring and Forecasting Center","ror":"https://ror.org/051k1tf82","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210156260"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Hui Li","raw_affiliation_strings":["College of Information Science and Technology, Hainan University, Haikou, China","Engineering Research Center of Marine Communication and Networks, Hainan Province, Haikou, China"],"affiliations":[{"raw_affiliation_string":"College of Information Science and Technology, Hainan University, Haikou, China","institution_ids":["https://openalex.org/I20942203"]},{"raw_affiliation_string":"Engineering Research Center of Marine Communication and Networks, Hainan Province, Haikou, China","institution_ids":["https://openalex.org/I4210156260"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5087232179"],"corresponding_institution_ids":["https://openalex.org/I20942203","https://openalex.org/I4210156260"],"apc_list":{"value":1140,"currency":"GBP","value_usd":1398},"apc_paid":{"value":1140,"currency":"GBP","value_usd":1398},"fwci":1.1792,"has_fulltext":true,"cited_by_count":10,"citation_normalized_percentile":{"value":0.78763104,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"2019","issue":"1","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10972","display_name":"Power Systems Fault Detection","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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/T10972","display_name":"Power Systems Fault Detection","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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/T10305","display_name":"Power System Optimization and Stability","score":0.9991999864578247,"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/T12300","display_name":"Advanced Electrical Measurement Techniques","score":0.9973000288009644,"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/discrete-fourier-transform","display_name":"Discrete Fourier transform (general)","score":0.6717435717582703},{"id":"https://openalex.org/keywords/harmonics","display_name":"Harmonics","score":0.6630162000656128},{"id":"https://openalex.org/keywords/frequency-deviation","display_name":"Frequency deviation","score":0.5299105644226074},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5251721739768982},{"id":"https://openalex.org/keywords/sampling","display_name":"Sampling (signal processing)","score":0.5107142925262451},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.48717066645622253},{"id":"https://openalex.org/keywords/fourier-transform","display_name":"Fourier transform","score":0.47651708126068115},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.43606171011924744},{"id":"https://openalex.org/keywords/steady-state","display_name":"Steady state (chemistry)","score":0.41595539450645447},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.4047197103500366},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3493005633354187},{"id":"https://openalex.org/keywords/short-time-fourier-transform","display_name":"Short-time Fourier transform","score":0.32226619124412537},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.1847434937953949},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.14493903517723083},{"id":"https://openalex.org/keywords/automatic-frequency-control","display_name":"Automatic frequency control","score":0.14084473252296448},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.14040610194206238},{"id":"https://openalex.org/keywords/fourier-analysis","display_name":"Fourier analysis","score":0.12525027990341187},{"id":"https://openalex.org/keywords/voltage","display_name":"Voltage","score":0.08268460631370544}],"concepts":[{"id":"https://openalex.org/C57733114","wikidata":"https://www.wikidata.org/wiki/Q1006032","display_name":"Discrete Fourier transform (general)","level":5,"score":0.6717435717582703},{"id":"https://openalex.org/C188414643","wikidata":"https://www.wikidata.org/wiki/Q3001183","display_name":"Harmonics","level":3,"score":0.6630162000656128},{"id":"https://openalex.org/C123919525","wikidata":"https://www.wikidata.org/wiki/Q761942","display_name":"Frequency deviation","level":3,"score":0.5299105644226074},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5251721739768982},{"id":"https://openalex.org/C140779682","wikidata":"https://www.wikidata.org/wiki/Q210868","display_name":"Sampling (signal processing)","level":3,"score":0.5107142925262451},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.48717066645622253},{"id":"https://openalex.org/C102519508","wikidata":"https://www.wikidata.org/wiki/Q6520159","display_name":"Fourier transform","level":2,"score":0.47651708126068115},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.43606171011924744},{"id":"https://openalex.org/C8171440","wikidata":"https://www.wikidata.org/wiki/Q903414","display_name":"Steady state (chemistry)","level":2,"score":0.41595539450645447},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.4047197103500366},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3493005633354187},{"id":"https://openalex.org/C166386157","wikidata":"https://www.wikidata.org/wiki/Q1477735","display_name":"Short-time Fourier transform","level":4,"score":0.32226619124412537},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.1847434937953949},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.14493903517723083},{"id":"https://openalex.org/C25915539","wikidata":"https://www.wikidata.org/wiki/Q220786","display_name":"Automatic frequency control","level":2,"score":0.14084473252296448},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.14040610194206238},{"id":"https://openalex.org/C203024314","wikidata":"https://www.wikidata.org/wiki/Q1365258","display_name":"Fourier analysis","level":3,"score":0.12525027990341187},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.08268460631370544},{"id":"https://openalex.org/C147789679","wikidata":"https://www.wikidata.org/wiki/Q11372","display_name":"Physical chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","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/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1186/s13638-018-1320-1","is_oa":true,"landing_page_url":"https://doi.org/10.1186/s13638-018-1320-1","pdf_url":"https://jwcn-eurasipjournals.springeropen.com/track/pdf/10.1186/s13638-018-1320-1","source":{"id":"https://openalex.org/S82675988","display_name":"EURASIP Journal on Wireless Communications and Networking","issn_l":"1687-1472","issn":["1687-1472","1687-1499"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Wireless Communications and Networking","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:f56e2755b94d4c0baba80200af5b0d34","is_oa":true,"landing_page_url":"https://doaj.org/article/f56e2755b94d4c0baba80200af5b0d34","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"EURASIP Journal on Wireless Communications and Networking, Vol 2019, Iss 1, Pp 1-19 (2019)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1186/s13638-018-1320-1","is_oa":true,"landing_page_url":"https://doi.org/10.1186/s13638-018-1320-1","pdf_url":"https://jwcn-eurasipjournals.springeropen.com/track/pdf/10.1186/s13638-018-1320-1","source":{"id":"https://openalex.org/S82675988","display_name":"EURASIP Journal on Wireless Communications and Networking","issn_l":"1687-1472","issn":["1687-1472","1687-1499"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Wireless Communications and Networking","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.47999998927116394,"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy"}],"awards":[{"id":"https://openalex.org/G2087396116","display_name":null,"funder_award_id":"China","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3317480652","display_name":null,"funder_award_id":"Science","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G4020255992","display_name":null,"funder_award_id":"Project","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5994120800","display_name":null,"funder_award_id":"Natural","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6721909089","display_name":null,"funder_award_id":"201801","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G892397539","display_name":null,"funder_award_id":"61661018","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320327827","display_name":"Key Research and Development Project of Hainan Province","ror":null}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2942339453.pdf","grobid_xml":"https://content.openalex.org/works/W2942339453.grobid-xml"},"referenced_works_count":62,"referenced_works":["https://openalex.org/W569579401","https://openalex.org/W1518260282","https://openalex.org/W1523200564","https://openalex.org/W1525590677","https://openalex.org/W1932312112","https://openalex.org/W1969898453","https://openalex.org/W1973838353","https://openalex.org/W1980606666","https://openalex.org/W1986204049","https://openalex.org/W2002611582","https://openalex.org/W2017407992","https://openalex.org/W2018695134","https://openalex.org/W2026634928","https://openalex.org/W2050714269","https://openalex.org/W2051234273","https://openalex.org/W2054160586","https://openalex.org/W2067475333","https://openalex.org/W2071137974","https://openalex.org/W2080016130","https://openalex.org/W2080099515","https://openalex.org/W2083944809","https://openalex.org/W2085546286","https://openalex.org/W2096043031","https://openalex.org/W2097031414","https://openalex.org/W2100464720","https://openalex.org/W2102370178","https://openalex.org/W2105478421","https://openalex.org/W2105781689","https://openalex.org/W2105817167","https://openalex.org/W2106609598","https://openalex.org/W2107841622","https://openalex.org/W2115577730","https://openalex.org/W2121242615","https://openalex.org/W2127723003","https://openalex.org/W2128787431","https://openalex.org/W2131041495","https://openalex.org/W2133503228","https://openalex.org/W2134209339","https://openalex.org/W2145503022","https://openalex.org/W2151761098","https://openalex.org/W2152785776","https://openalex.org/W2152953976","https://openalex.org/W2155068126","https://openalex.org/W2155833003","https://openalex.org/W2156935059","https://openalex.org/W2159917476","https://openalex.org/W2161727545","https://openalex.org/W2162723902","https://openalex.org/W2163871062","https://openalex.org/W2168586104","https://openalex.org/W2170173961","https://openalex.org/W2178801506","https://openalex.org/W2544883923","https://openalex.org/W2546216346","https://openalex.org/W2571496707","https://openalex.org/W2593293760","https://openalex.org/W2761717674","https://openalex.org/W3141140486","https://openalex.org/W3149674533","https://openalex.org/W4241473042","https://openalex.org/W6600648412","https://openalex.org/W6602380437"],"related_works":["https://openalex.org/W2370517014","https://openalex.org/W2039242888","https://openalex.org/W2515867587","https://openalex.org/W1838021708","https://openalex.org/W2362580397","https://openalex.org/W4386212449","https://openalex.org/W2002136255","https://openalex.org/W2149419755","https://openalex.org/W4249176500","https://openalex.org/W2351621077"],"abstract_inverted_index":{"Frequency":[0],"deviation":[1],"off":[2],"the":[3,20,25,48,65,70,74,106,154,163,167],"nominal":[4],"one":[5,165],"is":[6,61,101,157],"incurred":[7],"by":[8,96,122,128],"sudden":[9,115],"changes":[10],"of":[11,27,32,73,80,93,136,140,142,170],"frequency":[12,28,49,55,68,94,107,118],"and":[13,17,116,126,144,159],"could":[14],"introduce":[15],"harmonics":[16],"inter-harmonics":[18],"in":[19,50,69,108,111,166],"power":[21,172],"system,":[22],"which":[23],"influences":[24],"accuracy":[26],"estimation":[29,56],"with":[30,42,87],"method":[31,57],"discrete":[33],"Fourier":[34],"transform":[35],"(DFT).":[36],"A":[37,53],"two-layered":[38],"iterative":[39],"DFT":[40,75,98],"(TLI-DFT)":[41],"re-sampling":[43],"was":[44],"presented":[45],"to":[46,63],"measure":[47],"non-steady":[51,109,168],"states.":[52],"simple":[54],"named":[58],"exponential":[59],"sampling":[60,67],"amended":[62],"calculate":[64],"initial":[66],"inner-layered":[71],"process":[72],"iteration.":[76],"In":[77],"reality,":[78],"frequencies":[79],"two":[81],"consecutive":[82],"cycles":[83,100],"are":[84],"always":[85],"interrelated":[86],"each":[88],"other,":[89],"so":[90],"an":[91],"idea":[92],"tracking":[95],"outer-layered":[97],"between":[99],"adopted.":[102],"TLI-DFT":[103],"can":[104],"track":[105],"state":[110],"different":[112,149],"scenarios,":[113],"e.g.,":[114],"random":[117],"change,":[119],"signal":[120],"modulated":[121],"a":[123,171],"cosine":[124],"signal,":[125],"contaminated":[127],"decaying":[129],"direct":[130],"current":[131],"offsets.":[132],"Mean":[133],"squared":[134],"error":[135,147],"measured":[137],"frequency,":[138,143],"rate":[139],"change":[141],"total":[145],"vector":[146],"at":[148],"transient":[150],"conditions":[151],"indicate":[152],"that":[153],"proposed":[155],"algorithm":[156],"valid":[158],"more":[160],"accurate":[161],"than":[162],"traditional":[164],"states":[169],"system.":[173]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":5},{"year":2020,"cited_by_count":1}],"updated_date":"2026-04-18T07:56:08.524223","created_date":"2025-10-10T00:00:00"}