{"id":"https://openalex.org/W2195803439","doi":"https://doi.org/10.1631/fitee.1500052","title":"A novel period estimation method for X-ray pulsars based on frequency subdivision","display_name":"A novel period estimation method for X-ray pulsars based on frequency subdivision","publication_year":2015,"publication_date":"2015-10-01","ids":{"openalex":"https://openalex.org/W2195803439","doi":"https://doi.org/10.1631/fitee.1500052","mag":"2195803439"},"language":"en","primary_location":{"id":"doi:10.1631/fitee.1500052","is_oa":false,"landing_page_url":"https://doi.org/10.1631/fitee.1500052","pdf_url":null,"source":{"id":"https://openalex.org/S4210189857","display_name":"Frontiers of Information Technology & Electronic Engineering","issn_l":"2095-9184","issn":["2095-9184","2095-9230"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Frontiers of Information Technology & Electronic Engineering","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5082602499","display_name":"Lirong Shen","orcid":"https://orcid.org/0000-0002-9131-1079"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Li-rong Shen","raw_affiliation_strings":["School of Aerospace Science and Technology, Xidian University, Xi\u2019an, 710071, China","School of Aerospace Science and Technology, Xidian University, Xi'an, 710071, China"],"affiliations":[{"raw_affiliation_string":"School of Aerospace Science and Technology, Xidian University, Xi\u2019an, 710071, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"School of Aerospace Science and Technology, Xidian University, Xi'an, 710071, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110630925","display_name":"Xiaoping Li","orcid":null},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiao-ping Li","raw_affiliation_strings":["School of Aerospace Science and Technology, Xidian University, Xi\u2019an, 710071, China","School of Aerospace Science and Technology, Xidian University, Xi'an, 710071, China"],"affiliations":[{"raw_affiliation_string":"School of Aerospace Science and Technology, Xidian University, Xi\u2019an, 710071, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"School of Aerospace Science and Technology, Xidian University, Xi'an, 710071, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5108004216","display_name":"Haifeng Sun","orcid":"https://orcid.org/0000-0003-4654-9237"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hai-feng Sun","raw_affiliation_strings":["School of Aerospace Science and Technology, Xidian University, Xi\u2019an, 710071, China","School of Aerospace Science and Technology, Xidian University, Xi'an, 710071, China"],"affiliations":[{"raw_affiliation_string":"School of Aerospace Science and Technology, Xidian University, Xi\u2019an, 710071, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"School of Aerospace Science and Technology, Xidian University, Xi'an, 710071, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102906006","display_name":"Haiyan Fang","orcid":"https://orcid.org/0000-0003-2879-2452"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hai-yan Fang","raw_affiliation_strings":["School of Aerospace Science and Technology, Xidian University, Xi\u2019an, 710071, China","School of Aerospace Science and Technology, Xidian University, Xi'an, 710071, China"],"affiliations":[{"raw_affiliation_string":"School of Aerospace Science and Technology, Xidian University, Xi\u2019an, 710071, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"School of Aerospace Science and Technology, Xidian University, Xi'an, 710071, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100522083","display_name":"Mengfan Xue","orcid":null},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Meng-fan Xue","raw_affiliation_strings":["School of Aerospace Science and Technology, Xidian University, Xi\u2019an, 710071, China","School of Aerospace Science and Technology, Xidian University, Xi'an, 710071, China"],"affiliations":[{"raw_affiliation_string":"School of Aerospace Science and Technology, Xidian University, Xi\u2019an, 710071, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"School of Aerospace Science and Technology, Xidian University, Xi'an, 710071, China","institution_ids":["https://openalex.org/I149594827"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5082602499"],"corresponding_institution_ids":["https://openalex.org/I149594827"],"apc_list":null,"apc_paid":null,"fwci":2.4324,"has_fulltext":false,"cited_by_count":17,"citation_normalized_percentile":{"value":0.90042886,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"16","issue":"10","first_page":"858","last_page":"870"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11325","display_name":"Inertial Sensor and Navigation","score":0.9977999925613403,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T11325","display_name":"Inertial Sensor and Navigation","score":0.9977999925613403,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T10463","display_name":"Pulsars and Gravitational Waves Research","score":0.9976999759674072,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"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/T11405","display_name":"Geophysics and Gravity Measurements","score":0.9957000017166138,"subfield":{"id":"https://openalex.org/subfields/1910","display_name":"Oceanography"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/pulsar","display_name":"Pulsar","score":0.7473046779632568},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5703631043434143},{"id":"https://openalex.org/keywords/oversampling","display_name":"Oversampling","score":0.5639535188674927},{"id":"https://openalex.org/keywords/fast-fourier-transform","display_name":"Fast Fourier transform","score":0.5581226348876953},{"id":"https://openalex.org/keywords/periodogram","display_name":"Periodogram","score":0.4818635880947113},{"id":"https://openalex.org/keywords/fourier-transform","display_name":"Fourier transform","score":0.452381432056427},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.452246755361557},{"id":"https://openalex.org/keywords/rotation-period","display_name":"Rotation period","score":0.4306579828262329},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4209859073162079},{"id":"https://openalex.org/keywords/rotation","display_name":"Rotation (mathematics)","score":0.42007607221603394},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.35205191373825073},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.2816336154937744},{"id":"https://openalex.org/keywords/astrophysics","display_name":"Astrophysics","score":0.197261244058609},{"id":"https://openalex.org/keywords/stars","display_name":"Stars","score":0.1796865463256836},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.15248867869377136},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1081748902797699},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.07252201437950134}],"concepts":[{"id":"https://openalex.org/C110363677","wikidata":"https://www.wikidata.org/wiki/Q4360","display_name":"Pulsar","level":2,"score":0.7473046779632568},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5703631043434143},{"id":"https://openalex.org/C197323446","wikidata":"https://www.wikidata.org/wiki/Q331222","display_name":"Oversampling","level":3,"score":0.5639535188674927},{"id":"https://openalex.org/C75172450","wikidata":"https://www.wikidata.org/wiki/Q623950","display_name":"Fast Fourier transform","level":2,"score":0.5581226348876953},{"id":"https://openalex.org/C197680801","wikidata":"https://www.wikidata.org/wiki/Q587619","display_name":"Periodogram","level":2,"score":0.4818635880947113},{"id":"https://openalex.org/C102519508","wikidata":"https://www.wikidata.org/wiki/Q6520159","display_name":"Fourier transform","level":2,"score":0.452381432056427},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.452246755361557},{"id":"https://openalex.org/C9411552","wikidata":"https://www.wikidata.org/wiki/Q185981","display_name":"Rotation period","level":3,"score":0.4306579828262329},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4209859073162079},{"id":"https://openalex.org/C74050887","wikidata":"https://www.wikidata.org/wiki/Q848368","display_name":"Rotation (mathematics)","level":2,"score":0.42007607221603394},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.35205191373825073},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.2816336154937744},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.197261244058609},{"id":"https://openalex.org/C150846664","wikidata":"https://www.wikidata.org/wiki/Q7602306","display_name":"Stars","level":2,"score":0.1796865463256836},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.15248867869377136},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1081748902797699},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.07252201437950134},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1631/fitee.1500052","is_oa":false,"landing_page_url":"https://doi.org/10.1631/fitee.1500052","pdf_url":null,"source":{"id":"https://openalex.org/S4210189857","display_name":"Frontiers of Information Technology & Electronic Engineering","issn_l":"2095-9184","issn":["2095-9184","2095-9230"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Frontiers of Information Technology & Electronic Engineering","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G4782091386","display_name":null,"funder_award_id":"61301173","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8041402171","display_name":null,"funder_award_id":"61473228","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/F4320322439","display_name":"Northwest University","ror":"https://ror.org/00z3td547"},{"id":"https://openalex.org/F4320323230","display_name":"Xidian University","ror":"https://ror.org/05s92vm98"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":30,"referenced_works":["https://openalex.org/W202212270","https://openalex.org/W985858223","https://openalex.org/W1536142612","https://openalex.org/W1621058779","https://openalex.org/W1670852837","https://openalex.org/W1974618482","https://openalex.org/W1986316936","https://openalex.org/W1993155883","https://openalex.org/W1997134845","https://openalex.org/W2002915393","https://openalex.org/W2008150142","https://openalex.org/W2025727932","https://openalex.org/W2047093409","https://openalex.org/W2060792854","https://openalex.org/W2072610077","https://openalex.org/W2085761427","https://openalex.org/W2086972503","https://openalex.org/W2087572450","https://openalex.org/W2094441507","https://openalex.org/W2140884902","https://openalex.org/W2169301141","https://openalex.org/W2260581380","https://openalex.org/W2418558671","https://openalex.org/W3101118068","https://openalex.org/W3112237602","https://openalex.org/W3116328431","https://openalex.org/W6603115210","https://openalex.org/W6616408306","https://openalex.org/W6632382305","https://openalex.org/W6806219201"],"related_works":["https://openalex.org/W2766503024","https://openalex.org/W2781247653","https://openalex.org/W4206637278","https://openalex.org/W4386005305","https://openalex.org/W4386214543","https://openalex.org/W3082051559","https://openalex.org/W1969988626","https://openalex.org/W4255099625","https://openalex.org/W3178257951","https://openalex.org/W3205276202"],"abstract_inverted_index":{"Period":[0],"estimation":[1,23,102,168,205],"of":[2,24,32,65,100,173,207,221,229],"X-ray":[3,10,25,76,222],"pulsars":[4,223],"plays":[5],"an":[6,111],"important":[7],"role":[8],"in":[9,30,146,192],"pulsar":[11],"based":[12,74,85],"navigation":[13,73],"(XPNAV).":[14],"The":[15,213],"fast":[16,118,178,182],"Lomb":[17,92,119,179],"periodogram":[18,93,180],"is":[19,35,95,114,124,140,158,216],"suitable":[20,217],"for":[21,218],"period":[22,101,139,167,204,228],"pulsars,":[26],"but":[27,56],"its":[28],"performance":[29],"terms":[31],"frequency":[33,53,87,113,122,129],"resolution":[34],"limited":[36],"by":[37,142,170],"data":[38,151],"length":[39],"and":[40,62,89,181,224,232],"observation":[41,44,105,156],"time.":[42],"Longer":[43],"time":[45,157],"or":[46],"oversampling":[47],"can":[48],"be":[49],"employed":[50],"to":[51,97,130],"improve":[52,98],"analysis":[54],"results,":[55],"with":[57,133,176,187,209],"greatly":[58,69],"increased":[59],"computational":[60,193,211],"complexity":[61],"large":[63],"amounts":[64],"sampling":[66],"data.":[67,106],"This":[68],"restricts":[70],"real-time":[71],"autonomous":[72],"on":[75,86],"pulsars.":[77],"To":[78],"resolve":[79],"this":[80],"issue,":[81],"a":[82,137,189],"new":[83],"method":[84,165,198,206,215],"subdivision":[88,123],"the":[90,108,127,144,147,163,177,196,226],"continuous":[91],"(CLP)":[94],"proposed":[96,109,164,197,214],"precision":[99,169],"using":[103,117],"short-time":[104],"In":[107],"method,":[110],"initial":[112,128],"first":[115],"calculated":[116],"periodogram.":[120],"Then":[121],"performed":[125],"near":[126],"obtain":[131],"frequencies":[132],"higher":[134],"precision.":[135],"Finally,":[136],"refined":[138],"achieved":[141],"calculating":[143],"CLP":[145],"obtained":[148],"frequencies.":[149],"Real":[150],"experiments":[152],"show":[153],"that":[154],"when":[155],"shorter":[159],"than":[160,201],"135":[161],"s,":[162],"improves":[166],"1\u20133":[171],"orders":[172],"magnitude":[174],"compared":[175],"Fourier":[183],"transform":[184],"(FFT)":[185],"methods,":[186],"only":[188],"slight":[190],"increase":[191],"complexity.":[194,212],"Furthermore,":[195],"performs":[199],"better":[200],"efsearch":[202],"(a":[203],"HEAsoft)":[208],"lower":[210],"estimating":[219],"periods":[220],"obtaining":[225],"rotation":[227],"variable":[230],"stars":[231],"other":[233],"celestial":[234],"bodies.":[235]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":4},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":3},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":1},{"year":2016,"cited_by_count":2}],"updated_date":"2026-02-22T13:39:03.778224","created_date":"2025-10-10T00:00:00"}