{"id":"https://openalex.org/W3195410025","doi":"https://doi.org/10.1109/access.2021.3106050","title":"Assessment and Analysis of the Four-Satellite QZSS Precise Point Positioning and the Integrated Data Processing With GPS","display_name":"Assessment and Analysis of the Four-Satellite QZSS Precise Point Positioning and the Integrated Data Processing With GPS","publication_year":2021,"publication_date":"2021-01-01","ids":{"openalex":"https://openalex.org/W3195410025","doi":"https://doi.org/10.1109/access.2021.3106050","mag":"3195410025"},"language":"en","primary_location":{"id":"doi:10.1109/access.2021.3106050","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2021.3106050","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/9312710/09517108.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/ielx7/6287639/9312710/09517108.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5103151612","display_name":"Xuanping Li","orcid":"https://orcid.org/0000-0002-5479-3240"},"institutions":[{"id":"https://openalex.org/I139660479","display_name":"Central South University","ror":"https://ror.org/00f1zfq44","country_code":"CN","type":"education","lineage":["https://openalex.org/I139660479"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xuanping Li","raw_affiliation_strings":["School of Geosciences and Info-Physics, Central South University, Changsha, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Geosciences and Info-Physics, Central South University, Changsha, China","institution_ids":["https://openalex.org/I139660479"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026005771","display_name":"Lin Pan","orcid":"https://orcid.org/0000-0003-2921-1402"},"institutions":[{"id":"https://openalex.org/I139660479","display_name":"Central South University","ror":"https://ror.org/00f1zfq44","country_code":"CN","type":"education","lineage":["https://openalex.org/I139660479"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lin Pan","raw_affiliation_strings":["Guangxi Key Laboratory of Spatial Information and Geomatics, Guilin, China","School of Geosciences and Info-Physics, Central South University, Changsha, China","State Key Laboratory of Geo-Information Engineering, Xi\u2019an, China","State Key Laboratory of Geo-Information Engineering, Xi'an, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Guangxi Key Laboratory of Spatial Information and Geomatics, Guilin, China","institution_ids":[]},{"raw_affiliation_string":"School of Geosciences and Info-Physics, Central South University, Changsha, China","institution_ids":["https://openalex.org/I139660479"]},{"raw_affiliation_string":"State Key Laboratory of Geo-Information Engineering, Xi\u2019an, China","institution_ids":[]},{"raw_affiliation_string":"State Key Laboratory of Geo-Information Engineering, Xi'an, China","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5048696544","display_name":"Wenkun Yu","orcid":"https://orcid.org/0000-0003-1737-4925"},"institutions":[{"id":"https://openalex.org/I139660479","display_name":"Central South University","ror":"https://ror.org/00f1zfq44","country_code":"CN","type":"education","lineage":["https://openalex.org/I139660479"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wenkun Yu","raw_affiliation_strings":["School of Geosciences and Info-Physics, Central South University, Changsha, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Geosciences and Info-Physics, Central South University, Changsha, China","institution_ids":["https://openalex.org/I139660479"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I139660479"],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":8.5408,"has_fulltext":true,"cited_by_count":12,"citation_normalized_percentile":{"value":0.97050591,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":98},"biblio":{"volume":"9","issue":null,"first_page":"116376","last_page":"116394"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10655","display_name":"GNSS positioning and interference","score":1.0,"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/T10655","display_name":"GNSS positioning and interference","score":1.0,"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/T11405","display_name":"Geophysics and Gravity Measurements","score":0.9980000257492065,"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"}},{"id":"https://openalex.org/T12004","display_name":"Advanced Frequency and Time Standards","score":0.9955000281333923,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/quasi-zenith-satellite-system","display_name":"Quasi-Zenith Satellite System","score":0.9861556887626648},{"id":"https://openalex.org/keywords/global-positioning-system","display_name":"Global Positioning System","score":0.7671971321105957},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6544154286384583},{"id":"https://openalex.org/keywords/precise-point-positioning","display_name":"Precise Point Positioning","score":0.5910016894340515},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.4797207713127136},{"id":"https://openalex.org/keywords/satellite-navigation","display_name":"Satellite navigation","score":0.4644112288951874},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.4111626148223877},{"id":"https://openalex.org/keywords/gnss-applications","display_name":"GNSS applications","score":0.3988051414489746},{"id":"https://openalex.org/keywords/satellite-system","display_name":"Satellite system","score":0.3295941948890686},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.22743165493011475},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.10298362374305725}],"concepts":[{"id":"https://openalex.org/C68477667","wikidata":"https://www.wikidata.org/wiki/Q862327","display_name":"Quasi-Zenith Satellite System","level":5,"score":0.9861556887626648},{"id":"https://openalex.org/C60229501","wikidata":"https://www.wikidata.org/wiki/Q18822","display_name":"Global Positioning System","level":2,"score":0.7671971321105957},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6544154286384583},{"id":"https://openalex.org/C202511199","wikidata":"https://www.wikidata.org/wiki/Q7239503","display_name":"Precise Point Positioning","level":4,"score":0.5910016894340515},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.4797207713127136},{"id":"https://openalex.org/C36301306","wikidata":"https://www.wikidata.org/wiki/Q179435","display_name":"Satellite navigation","level":3,"score":0.4644112288951874},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.4111626148223877},{"id":"https://openalex.org/C14279187","wikidata":"https://www.wikidata.org/wiki/Q5514012","display_name":"GNSS applications","level":3,"score":0.3988051414489746},{"id":"https://openalex.org/C2778027091","wikidata":"https://www.wikidata.org/wiki/Q25346003","display_name":"Satellite system","level":4,"score":0.3295941948890686},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.22743165493011475},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.10298362374305725},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2021.3106050","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2021.3106050","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/9312710/09517108.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:3d37d2f7408743c393c41eb86e453e1f","is_oa":true,"landing_page_url":"https://doaj.org/article/3d37d2f7408743c393c41eb86e453e1f","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 9, Pp 116376-116394 (2021)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2021.3106050","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2021.3106050","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/9312710/09517108.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/G1894627071","display_name":null,"funder_award_id":"41904030","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G2846012061","display_name":null,"funder_award_id":"2020JJ5706","funder_id":"https://openalex.org/F4320322843","funder_display_name":"Natural Science Foundation of\u00a0Hunan Province"},{"id":"https://openalex.org/G3968471557","display_name":null,"funder_award_id":"SKLGIE2019\u2013Z\u20131\u20131","funder_id":"https://openalex.org/F4320326985","funder_display_name":"State Key Laboratory of Geo-Information Engineering"},{"id":"https://openalex.org/G5808948936","display_name":null,"funder_award_id":"2021zzts0851","funder_id":"https://openalex.org/F4320321514","funder_display_name":"Central South University"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320321514","display_name":"Central South University","ror":"https://ror.org/00f1zfq44"},{"id":"https://openalex.org/F4320322843","display_name":"Natural Science Foundation of\u00a0Hunan Province","ror":null},{"id":"https://openalex.org/F4320326985","display_name":"State Key Laboratory of Geo-Information Engineering","ror":null},{"id":"https://openalex.org/F4320334900","display_name":"Japan Aerospace Exploration Agency","ror":"https://ror.org/059yhyy33"},{"id":"https://openalex.org/F4320335787","display_name":"Fundamental Research Funds for the Central Universities","ror":null}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3195410025.pdf","grobid_xml":"https://content.openalex.org/works/W3195410025.grobid-xml"},"referenced_works_count":21,"referenced_works":["https://openalex.org/W2087101760","https://openalex.org/W2109348604","https://openalex.org/W2125526179","https://openalex.org/W2219640434","https://openalex.org/W2281653717","https://openalex.org/W2530248864","https://openalex.org/W2801002770","https://openalex.org/W2884895858","https://openalex.org/W2908506383","https://openalex.org/W2912164078","https://openalex.org/W2939481332","https://openalex.org/W2948341427","https://openalex.org/W2990735471","https://openalex.org/W2991121771","https://openalex.org/W2997931748","https://openalex.org/W3003033525","https://openalex.org/W3009692279","https://openalex.org/W3016962415","https://openalex.org/W3021639060","https://openalex.org/W3112811085","https://openalex.org/W6787205315"],"related_works":["https://openalex.org/W2375040471","https://openalex.org/W4392115504","https://openalex.org/W2068158190","https://openalex.org/W2125526179","https://openalex.org/W4396749081","https://openalex.org/W2028990501","https://openalex.org/W4396749295","https://openalex.org/W4253581709","https://openalex.org/W4233201170","https://openalex.org/W1995035072"],"abstract_inverted_index":{"The":[0,24,113,212],"Quasi-Zenith":[1],"Satellite":[2],"System":[3],"(QZSS),":[4],"which":[5],"serves":[6],"Japan":[7,20],"and":[8,36,53,72,77,85,96,107,128,135,139,149,156,159,162],"its":[9],"surrounding":[10],"areas,":[11],"is":[12,26,56,110,124,199,221],"a":[13,29],"regional":[14],"navigation":[15,35],"satellite":[16],"system":[17,25],"developed":[18],"by":[19],"Aerospace":[21],"Exploration":[22],"Agency.":[23],"now":[27],"in":[28,50,69,131,165,195],"four-satellite":[30],"constellation":[31],"with":[32,94,147,235],"preliminary":[33],"standalone":[34],"positioning":[37,48,119],"capabilities.":[38],"In":[39],"this":[40],"paper,":[41],"the":[42,60,73,81,89,103,117,132,140,166,172,177,191,239],"performance":[43],"of":[44,121,144,214],"QZSS-only":[45,122,145,173],"precise":[46,75],"point":[47],"(PPP)":[49],"both":[51],"static":[52,118,141],"kinematic":[54,174],"modes":[55],"initially":[57],"evaluated":[58],"using":[59],"datasets":[61],"spanning":[62],"11":[63,66],"days":[64],"from":[65,80],"tracking":[67],"stations":[68],"Asia-Pacific":[70],"regions":[71],"final":[74,98],"orbit":[76,106],"clock":[78,108],"products":[79,99,151],"analysis":[82],"centers":[83],"GFZ":[84,95,150],"WUM.":[86],"For":[87],"completeness,":[88],"GPS/QZSS":[90,196,216,237],"integrated":[91],"data":[92],"processing":[93,198],"WUM":[97,148],"as":[100,102,204],"well":[101],"L6E":[104],"real-time":[105,240],"corrections":[109],"also":[111],"analyzed.":[112],"results":[114],"indicate":[115],"that":[116],"accuracy":[120],"PPP":[123,146,175,197,217],"approximately":[125],"4,":[126],"2":[127],"15":[129],"cm":[130],"east,":[133],"north":[134],"up":[136],"directions,":[137,168],"respectively,":[138],"convergence":[142,232,248],"time":[143],"can":[152,227],"be":[153,202,228],"75.2,":[154],"44.3":[155],"45.6":[157],"min,":[158],"153.5,":[160],"201.6":[161],"162.8":[163],"min":[164],"three":[167],"respectively.":[169],"As":[170],"for":[171],"solutions,":[176,190],"re-convergence":[178],"repeatedly":[179],"occurs":[180],"due":[181],"to":[182,201],"limited":[183],"available":[184],"satellites.":[185],"To":[186],"achieve":[187],"more":[188],"reliable":[189],"inter-system":[192],"bias":[193],"parameter":[194],"recommended":[200],"estimated":[203],"random":[205],"walk":[206],"process":[207],"or":[208],"white":[209],"noise":[210],"process.":[211],"improvement":[213],"post-processed":[215,236],"over":[218],"GPS-only":[219],"case":[220],"marginal":[222],"on":[223,231],"position":[224,244],"accuracies,":[225],"but":[226,246],"several":[229],"minutes":[230],"time.":[233,249],"Compared":[234],"PPP,":[238],"one":[241],"achieves":[242],"worse":[243],"accuracies":[245],"comparable":[247]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}