{"id":"https://openalex.org/W4413979103","doi":"https://doi.org/10.1109/tim.2025.3606009","title":"An Ellipse-Fitting Positioning Method Based on Ultralow-Frequency Magnetic Field-Based Positioning Systems","display_name":"An Ellipse-Fitting Positioning Method Based on Ultralow-Frequency Magnetic Field-Based Positioning Systems","publication_year":2025,"publication_date":"2025-01-01","ids":{"openalex":"https://openalex.org/W4413979103","doi":"https://doi.org/10.1109/tim.2025.3606009"},"language":"en","primary_location":{"id":"doi:10.1109/tim.2025.3606009","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tim.2025.3606009","pdf_url":null,"source":{"id":"https://openalex.org/S10892749","display_name":"IEEE Transactions on Instrumentation and Measurement","issn_l":"0018-9456","issn":["0018-9456","1557-9662"],"is_oa":false,"is_in_doaj":false,"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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Instrumentation and Measurement","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/A5106329818","display_name":"Ao Shen","orcid":null},"institutions":[{"id":"https://openalex.org/I204983213","display_name":"Harbin Institute of Technology","ror":"https://ror.org/01yqg2h08","country_code":"CN","type":"education","lineage":["https://openalex.org/I204983213"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Ao Shen","raw_affiliation_strings":["Research Center of Space Control and Inertial Technology, Harbin Institute of Technology, Harbin, China"],"raw_orcid":"https://orcid.org/0009-0006-4106-5048","affiliations":[{"raw_affiliation_string":"Research Center of Space Control and Inertial Technology, Harbin Institute of Technology, Harbin, China","institution_ids":["https://openalex.org/I204983213"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5004412667","display_name":"Li Xinnian","orcid":"https://orcid.org/0000-0001-9450-168X"},"institutions":[{"id":"https://openalex.org/I204983213","display_name":"Harbin Institute of Technology","ror":"https://ror.org/01yqg2h08","country_code":"CN","type":"education","lineage":["https://openalex.org/I204983213"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xinnian Li","raw_affiliation_strings":["Research Center of Space Control and Inertial Technology, Harbin Institute of Technology, Harbin, China"],"raw_orcid":"https://orcid.org/0000-0001-9450-168X","affiliations":[{"raw_affiliation_string":"Research Center of Space Control and Inertial Technology, Harbin Institute of Technology, Harbin, China","institution_ids":["https://openalex.org/I204983213"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101927778","display_name":"Qinghua Li","orcid":"https://orcid.org/0000-0002-1197-6952"},"institutions":[{"id":"https://openalex.org/I204983213","display_name":"Harbin Institute of Technology","ror":"https://ror.org/01yqg2h08","country_code":"CN","type":"education","lineage":["https://openalex.org/I204983213"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qinghua Li","raw_affiliation_strings":["Research Center of Space Control and Inertial Technology, Harbin Institute of Technology, Harbin, China"],"raw_orcid":"https://orcid.org/0000-0002-1197-6952","affiliations":[{"raw_affiliation_string":"Research Center of Space Control and Inertial Technology, Harbin Institute of Technology, Harbin, China","institution_ids":["https://openalex.org/I204983213"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044985441","display_name":"Luyu Zeng","orcid":null},"institutions":[{"id":"https://openalex.org/I204983213","display_name":"Harbin Institute of Technology","ror":"https://ror.org/01yqg2h08","country_code":"CN","type":"education","lineage":["https://openalex.org/I204983213"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Luyu Zeng","raw_affiliation_strings":["Research Center of Space Control and Inertial Technology, Harbin Institute of Technology, Harbin, China"],"raw_orcid":"https://orcid.org/0009-0009-9435-1509","affiliations":[{"raw_affiliation_string":"Research Center of Space Control and Inertial Technology, Harbin Institute of Technology, Harbin, China","institution_ids":["https://openalex.org/I204983213"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100533948","display_name":"Jingyang Sun","orcid":null},"institutions":[{"id":"https://openalex.org/I204983213","display_name":"Harbin Institute of Technology","ror":"https://ror.org/01yqg2h08","country_code":"CN","type":"education","lineage":["https://openalex.org/I204983213"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jingyang Sun","raw_affiliation_strings":["Research Center of Space Control and Inertial Technology, Harbin Institute of Technology, Harbin, China"],"raw_orcid":"https://orcid.org/0009-0009-3839-3763","affiliations":[{"raw_affiliation_string":"Research Center of Space Control and Inertial Technology, Harbin Institute of Technology, Harbin, China","institution_ids":["https://openalex.org/I204983213"]}]},{"author_position":"last","author":{"id":null,"display_name":"Hao Wang","orcid":"https://orcid.org/0009-0002-5857-5109"},"institutions":[{"id":"https://openalex.org/I204983213","display_name":"Harbin Institute of Technology","ror":"https://ror.org/01yqg2h08","country_code":"CN","type":"education","lineage":["https://openalex.org/I204983213"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hao Wang","raw_affiliation_strings":["Research Center of Space Control and Inertial Technology, Harbin Institute of Technology, Harbin, China"],"raw_orcid":"https://orcid.org/0009-0002-5857-5109","affiliations":[{"raw_affiliation_string":"Research Center of Space Control and Inertial Technology, Harbin Institute of Technology, Harbin, China","institution_ids":["https://openalex.org/I204983213"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5106329818"],"corresponding_institution_ids":["https://openalex.org/I204983213"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.29123878,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"74","issue":null,"first_page":"1","last_page":"10"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10191","display_name":"Robotics and Sensor-Based Localization","score":0.986299991607666,"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/T10191","display_name":"Robotics and Sensor-Based Localization","score":0.986299991607666,"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/T11325","display_name":"Inertial Sensor and Navigation","score":0.9735000133514404,"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/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9733999967575073,"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/ellipse","display_name":"Ellipse","score":0.6398059129714966},{"id":"https://openalex.org/keywords/biomagnetism","display_name":"Biomagnetism","score":0.5330022573471069},{"id":"https://openalex.org/keywords/magnetic-field","display_name":"Magnetic field","score":0.4978008270263672},{"id":"https://openalex.org/keywords/positioning-system","display_name":"Positioning system","score":0.42777276039123535},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.41792696714401245},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.33289849758148193},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3273639678955078},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.3262789845466614},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.3255157172679901},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.24922949075698853}],"concepts":[{"id":"https://openalex.org/C74261601","wikidata":"https://www.wikidata.org/wiki/Q40112","display_name":"Ellipse","level":2,"score":0.6398059129714966},{"id":"https://openalex.org/C78902741","wikidata":"https://www.wikidata.org/wiki/Q4915071","display_name":"Biomagnetism","level":3,"score":0.5330022573471069},{"id":"https://openalex.org/C115260700","wikidata":"https://www.wikidata.org/wiki/Q11408","display_name":"Magnetic field","level":2,"score":0.4978008270263672},{"id":"https://openalex.org/C2778603505","wikidata":"https://www.wikidata.org/wiki/Q17141406","display_name":"Positioning system","level":3,"score":0.42777276039123535},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.41792696714401245},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.33289849758148193},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3273639678955078},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.3262789845466614},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.3255157172679901},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.24922949075698853},{"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/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0},{"id":"https://openalex.org/C62611344","wikidata":"https://www.wikidata.org/wiki/Q1062658","display_name":"Node (physics)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tim.2025.3606009","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tim.2025.3606009","pdf_url":null,"source":{"id":"https://openalex.org/S10892749","display_name":"IEEE Transactions on Instrumentation and Measurement","issn_l":"0018-9456","issn":["0018-9456","1557-9662"],"is_oa":false,"is_in_doaj":false,"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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Instrumentation and Measurement","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G5777072171","display_name":null,"funder_award_id":"62473107","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"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":30,"referenced_works":["https://openalex.org/W1997209320","https://openalex.org/W2002468179","https://openalex.org/W2017316038","https://openalex.org/W2019787708","https://openalex.org/W2035918612","https://openalex.org/W2122756059","https://openalex.org/W2149311703","https://openalex.org/W2281731205","https://openalex.org/W2295753081","https://openalex.org/W2547653514","https://openalex.org/W2598934423","https://openalex.org/W2883020893","https://openalex.org/W2905020037","https://openalex.org/W2921870669","https://openalex.org/W2980325010","https://openalex.org/W3006563932","https://openalex.org/W3048359794","https://openalex.org/W3081585954","https://openalex.org/W3095730650","https://openalex.org/W3116042716","https://openalex.org/W3123973151","https://openalex.org/W3211222791","https://openalex.org/W4313028795","https://openalex.org/W4319160361","https://openalex.org/W4382568106","https://openalex.org/W4385012595","https://openalex.org/W4385062326","https://openalex.org/W4391454384","https://openalex.org/W4396909034","https://openalex.org/W4403587542"],"related_works":["https://openalex.org/W2371136327","https://openalex.org/W2890757232","https://openalex.org/W4293234107","https://openalex.org/W2092729804","https://openalex.org/W2370549269","https://openalex.org/W2386824811","https://openalex.org/W2354618530","https://openalex.org/W2081226903","https://openalex.org/W2533964797","https://openalex.org/W1976727493"],"abstract_inverted_index":{"This":[0],"paper":[1],"presents":[2],"a":[3,35,52,173,186],"novel":[4],"positioning":[5,12,57,72,137],"method":[6,102,127,138],"based":[7],"on":[8],"ultra-low-frequency":[9],"magnetic":[10,87,122,168],"field-based":[11],"systems":[13],"(ULF-MPSs)":[14],"in":[15,58,84,160,166,185,203],"non-line-of-sight":[16],"(NLOS)":[17],"environments.":[18,60],"The":[19,143],"system":[20,145],"for":[21,55,65],"easy":[22],"deployment":[23],"is":[24,63,103,128,183],"implemented":[25],"with":[26,76],"the":[27,40,74,86,93,107,110,115,119,132,135,140,147,161,195],"rotating":[28],"permanent":[29],"magnet,":[30],"two":[31],"three-axis":[32,36],"magnetometers":[33],"and":[34,43,70,89,149,157,170],"accelerometer.":[37],"Due":[38],"to":[39,67,92,105,130],"high":[41,197],"penetration":[42],"absence":[44],"of":[45,73,109,121,134,153,163,205],"accumulated":[46],"errors,":[47],"ULF-MPSs":[48,66],"have":[49],"emerged":[50],"as":[51],"research":[53],"point":[54],"precise":[56],"NLOS":[59],"However,":[61],"it":[62],"challenging":[64],"achieve":[68],"rapid":[69],"accurate":[71],"target,":[75],"its":[77],"performance":[78,182],"significantly":[79],"influenced":[80],"by":[81],"attitude":[82,141,164],"errors":[83,152,165],"both":[85,167],"source":[88,169],"sensors":[90,171],"relative":[91,151],"global":[94],"coordinate":[95],"system.":[96],"In":[97],"this":[98],"paper,":[99],"an":[100],"ellipse-fitting":[101],"proposed":[104,136],"estimate":[106],"position":[108],"target":[111],"rapidly,":[112],"derived":[113],"from":[114],"elliptical":[116],"relationship":[117],"among":[118],"components":[120],"flux":[123],"density.":[124],"A":[125],"two-step":[126],"developed":[129],"enhance":[131],"robustness":[133],"against":[139],"errors.":[142],"realized":[144],"exhibits":[146],"mean":[148],"maximum":[150],"less":[154],"than":[155],"1.17%":[156],"2.82%":[158],"respectively":[159],"presence":[162],"within":[172],"15":[174,177],"m":[175,178,188,191],"\u00d7":[176,189],"woodland":[179],"area.":[180],"Similar":[181],"obtained":[184],"10":[187],"5":[190],"underground":[192],"environment.":[193],"Additionally,":[194],"method\u2019s":[196],"computational":[198],"efficiency":[199],"offers":[200],"significant":[201],"advantages":[202],"terms":[204],"real-time":[206],"performance.":[207]},"counts_by_year":[],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}