{"id":"https://openalex.org/W4410295568","doi":"https://doi.org/10.1109/tim.2025.3568977","title":"Self-Attention-Enhanced PSW-LSTM for 3-D Indoor Pedestrian Positioning With Integrated Wi-Fi, Magnetometer, and Barometer Sensors","display_name":"Self-Attention-Enhanced PSW-LSTM for 3-D Indoor Pedestrian Positioning With Integrated Wi-Fi, Magnetometer, and Barometer Sensors","publication_year":2025,"publication_date":"2025-01-01","ids":{"openalex":"https://openalex.org/W4410295568","doi":"https://doi.org/10.1109/tim.2025.3568977"},"language":"en","primary_location":{"id":"doi:10.1109/tim.2025.3568977","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tim.2025.3568977","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":null,"display_name":"Zhanpeng Zhang","orcid":"https://orcid.org/0009-0002-3571-4575"},"institutions":[{"id":"https://openalex.org/I82880672","display_name":"Beihang University","ror":"https://ror.org/00wk2mp56","country_code":"CN","type":"education","lineage":["https://openalex.org/I82880672"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Zhanpeng Zhang","raw_affiliation_strings":["School of Electronics and Information Engineering, Beihang University, Beijing, China"],"raw_orcid":"https://orcid.org/0009-0002-3571-4575","affiliations":[{"raw_affiliation_string":"School of Electronics and Information Engineering, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100375425","display_name":"Jiale Wang","orcid":null},"institutions":[{"id":"https://openalex.org/I82880672","display_name":"Beihang University","ror":"https://ror.org/00wk2mp56","country_code":"CN","type":"education","lineage":["https://openalex.org/I82880672"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jiale Wang","raw_affiliation_strings":["School of Space and Earth Sciences, Beihang University, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0001-6530-7060","affiliations":[{"raw_affiliation_string":"School of Space and Earth Sciences, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065624859","display_name":"Ming Xia","orcid":"https://orcid.org/0000-0002-6552-3377"},"institutions":[{"id":"https://openalex.org/I82880672","display_name":"Beihang University","ror":"https://ror.org/00wk2mp56","country_code":"CN","type":"education","lineage":["https://openalex.org/I82880672"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ming Xia","raw_affiliation_strings":["School of Electronics and Information Engineering, Beihang University, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0002-6552-3377","affiliations":[{"raw_affiliation_string":"School of Electronics and Information Engineering, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100709710","display_name":"Chuang Shi","orcid":"https://orcid.org/0000-0002-1600-9160"},"institutions":[{"id":"https://openalex.org/I82880672","display_name":"Beihang University","ror":"https://ror.org/00wk2mp56","country_code":"CN","type":"education","lineage":["https://openalex.org/I82880672"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Chuang Shi","raw_affiliation_strings":["School of Space and Earth Sciences, Beihang University, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0002-1600-9160","affiliations":[{"raw_affiliation_string":"School of Space and Earth Sciences, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5045346492","display_name":"Weisong Wen","orcid":"https://orcid.org/0000-0003-4158-0913"},"institutions":[{"id":"https://openalex.org/I14243506","display_name":"Hong Kong Polytechnic University","ror":"https://ror.org/0030zas98","country_code":"HK","type":"education","lineage":["https://openalex.org/I14243506"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Weisong Wen","raw_affiliation_strings":["Department of Aeronautical and Aviation Engineering, Hong Kong Polytechnic University, Hong Kong, China"],"raw_orcid":"https://orcid.org/0000-0003-4158-0913","affiliations":[{"raw_affiliation_string":"Department of Aeronautical and Aviation Engineering, Hong Kong Polytechnic University, Hong Kong, China","institution_ids":["https://openalex.org/I14243506"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5090707691","display_name":"Deyou Zhang","orcid":"https://orcid.org/0000-0001-9621-561X"},"institutions":[{"id":"https://openalex.org/I82880672","display_name":"Beihang University","ror":"https://ror.org/00wk2mp56","country_code":"CN","type":"education","lineage":["https://openalex.org/I82880672"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Deyou Zhang","raw_affiliation_strings":["School of Electronics and Information Engineering, Beihang University, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0001-9621-561X","affiliations":[{"raw_affiliation_string":"School of Electronics and Information Engineering, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I82880672"],"apc_list":null,"apc_paid":null,"fwci":3.1068,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.91501276,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":96,"max":99},"biblio":{"volume":"74","issue":null,"first_page":"1","last_page":"15"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.991100013256073,"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/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.991100013256073,"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/T10331","display_name":"Video Surveillance and Tracking Methods","score":0.9815999865531921,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12406","display_name":"IoT and GPS-based Vehicle Safety Systems","score":0.9333000183105469,"subfield":{"id":"https://openalex.org/subfields/2210","display_name":"Mechanical 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/barometer","display_name":"Barometer","score":0.974153995513916},{"id":"https://openalex.org/keywords/magnetometer","display_name":"Magnetometer","score":0.8078677654266357},{"id":"https://openalex.org/keywords/pedestrian","display_name":"Pedestrian","score":0.6733024716377258},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5554189682006836},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.4988093376159668},{"id":"https://openalex.org/keywords/accelerometer","display_name":"Accelerometer","score":0.4907713830471039},{"id":"https://openalex.org/keywords/global-positioning-system","display_name":"Global Positioning System","score":0.4259706139564514},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.42423051595687866},{"id":"https://openalex.org/keywords/distance-measurement","display_name":"Distance measurement","score":0.4185435175895691},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.36761367321014404},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3297061026096344},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.26972460746765137},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.19619253277778625},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.13477745652198792},{"id":"https://openalex.org/keywords/magnetic-field","display_name":"Magnetic field","score":0.13214704394340515},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.1312628984451294},{"id":"https://openalex.org/keywords/transport-engineering","display_name":"Transport engineering","score":0.0845082700252533}],"concepts":[{"id":"https://openalex.org/C107284991","wikidata":"https://www.wikidata.org/wiki/Q79757","display_name":"Barometer","level":2,"score":0.974153995513916},{"id":"https://openalex.org/C153946474","wikidata":"https://www.wikidata.org/wiki/Q333921","display_name":"Magnetometer","level":3,"score":0.8078677654266357},{"id":"https://openalex.org/C2777113093","wikidata":"https://www.wikidata.org/wiki/Q221488","display_name":"Pedestrian","level":2,"score":0.6733024716377258},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5554189682006836},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.4988093376159668},{"id":"https://openalex.org/C89805583","wikidata":"https://www.wikidata.org/wiki/Q192940","display_name":"Accelerometer","level":2,"score":0.4907713830471039},{"id":"https://openalex.org/C60229501","wikidata":"https://www.wikidata.org/wiki/Q18822","display_name":"Global Positioning System","level":2,"score":0.4259706139564514},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.42423051595687866},{"id":"https://openalex.org/C2986158284","wikidata":"https://www.wikidata.org/wiki/Q6522493","display_name":"Distance measurement","level":2,"score":0.4185435175895691},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.36761367321014404},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3297061026096344},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.26972460746765137},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.19619253277778625},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.13477745652198792},{"id":"https://openalex.org/C115260700","wikidata":"https://www.wikidata.org/wiki/Q11408","display_name":"Magnetic field","level":2,"score":0.13214704394340515},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.1312628984451294},{"id":"https://openalex.org/C22212356","wikidata":"https://www.wikidata.org/wiki/Q775325","display_name":"Transport engineering","level":1,"score":0.0845082700252533},{"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/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tim.2025.3568977","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tim.2025.3568977","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":[{"id":"https://metadata.un.org/sdg/11","score":0.5099999904632568,"display_name":"Sustainable cities and communities"}],"awards":[{"id":"https://openalex.org/G1793162581","display_name":null,"funder_award_id":"5700-202441237A-1-1-ZN","funder_id":"https://openalex.org/F4320335984","funder_display_name":"Science and Technology Foundation of State Grid Corporation of China"}],"funders":[{"id":"https://openalex.org/F4320335984","display_name":"Science and Technology Foundation of State Grid Corporation of China","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":46,"referenced_works":["https://openalex.org/W1968099658","https://openalex.org/W1971139493","https://openalex.org/W2149311703","https://openalex.org/W2189789452","https://openalex.org/W2524455649","https://openalex.org/W2769602733","https://openalex.org/W2903577397","https://openalex.org/W2972355358","https://openalex.org/W2995695986","https://openalex.org/W3013158437","https://openalex.org/W3024761859","https://openalex.org/W3043933517","https://openalex.org/W3100273368","https://openalex.org/W3112985455","https://openalex.org/W3135671881","https://openalex.org/W3137032495","https://openalex.org/W3167119432","https://openalex.org/W3168497247","https://openalex.org/W3169649522","https://openalex.org/W3189493972","https://openalex.org/W3191398103","https://openalex.org/W3200651243","https://openalex.org/W3207719767","https://openalex.org/W3212604410","https://openalex.org/W4210659589","https://openalex.org/W4213431617","https://openalex.org/W4225992512","https://openalex.org/W4283746640","https://openalex.org/W4289950767","https://openalex.org/W4297786268","https://openalex.org/W4312051567","https://openalex.org/W4312303836","https://openalex.org/W4312946203","https://openalex.org/W4319988681","https://openalex.org/W4379929743","https://openalex.org/W4384162259","https://openalex.org/W4387587515","https://openalex.org/W4388083942","https://openalex.org/W4389403378","https://openalex.org/W4391365589","https://openalex.org/W4392756941","https://openalex.org/W4396667787","https://openalex.org/W4396829740","https://openalex.org/W4401349710","https://openalex.org/W4401936703","https://openalex.org/W4406414629"],"related_works":["https://openalex.org/W1997752975","https://openalex.org/W2596141173","https://openalex.org/W2000598878","https://openalex.org/W2393486494","https://openalex.org/W1991898702","https://openalex.org/W4233969487","https://openalex.org/W2072447162","https://openalex.org/W2472754926","https://openalex.org/W2118308282","https://openalex.org/W2112493694"],"abstract_inverted_index":{"The":[0,80],"performance":[1],"of":[2],"smartphone-based":[3,128],"fingerprinting":[4],"indoor":[5,61,102,130],"positioning":[6,65,114,131],"methods":[7,23],"heavily":[8],"depends":[9],"on":[10],"the":[11,110],"database":[12,78],"quality":[13],"and":[14,33,53,92,107,112,123],"matching":[15,87],"algorithms,":[16],"typically":[17],"providing":[18],"only":[19],"2D":[20],"coordinates.":[21],"Traditional":[22],"also":[24],"face":[25],"challenges":[26],"like":[27],"labor-intensive":[28],"data":[29],"collection,":[30],"limited":[31],"accuracy,":[32,88],"reduced":[34],"longterm":[35],"reliability.":[36],"This":[37],"paper":[38],"proposes":[39],"a":[40],"Self-Attention-Enhanced":[41,82],"Pre-Sequence":[42],"Warmup":[43],"Long":[44],"Short-Term":[45],"Memory":[46],"(PSW-LSTM)":[47],"framework,":[48],"integrated":[49],"with":[50],"WiFi,":[51],"barometer,":[52],"magnetometer":[54],"sensors,":[55],"to":[56,69],"achieve":[57],"accurate":[58],"3D":[59,129],"pedestrian":[60],"positioning.":[62],"Specifically,":[63],"foot-mounted":[64],"devices":[66],"are":[67],"introduced":[68],"assist":[70],"smartphones":[71],"in":[72,100],"collecting":[73],"sparse":[74],"fingerprint":[75],"data,":[76],"improving":[77,127],"efficiency.":[79],"proposed":[81],"PSW-LSTM":[83],"framework":[84],"improves":[85],"initial":[86],"reduces":[89],"convergence":[90],"time,":[91],"enhances":[93],"trajectory":[94],"continuity.":[95],"Experimental":[96],"results":[97],"demonstrate":[98],"that,":[99],"typical":[101],"environments":[103],"such":[104],"as":[105],"educational":[106],"office":[108],"spaces,":[109],"horizontal":[111],"vertical":[113],"accuracy":[115],"for":[116],"pedestrians":[117],"is":[118],"better":[119],"than":[120],"2":[121],"meters":[122],"0.5":[124],"meters,":[125],"significantly":[126],"performance.":[132]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":3}],"updated_date":"2026-05-07T13:39:58.223016","created_date":"2025-10-10T00:00:00"}
