{"id":"https://openalex.org/W2904550950","doi":"https://doi.org/10.1109/tgrs.2018.2881124","title":"3-D Ionospheric Tomography Using Model Function in the Modified L-Curve Method","display_name":"3-D Ionospheric Tomography Using Model Function in the Modified L-Curve Method","publication_year":2018,"publication_date":"2018-12-07","ids":{"openalex":"https://openalex.org/W2904550950","doi":"https://doi.org/10.1109/tgrs.2018.2881124","mag":"2904550950"},"language":"en","primary_location":{"id":"doi:10.1109/tgrs.2018.2881124","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2018.2881124","pdf_url":null,"source":{"id":"https://openalex.org/S111326731","display_name":"IEEE Transactions on Geoscience and Remote Sensing","issn_l":"0196-2892","issn":["0196-2892","1558-0644"],"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 Geoscience and Remote Sensing","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/A5032989883","display_name":"Sicheng Wang","orcid":"https://orcid.org/0000-0002-3819-2365"},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Sicheng Wang","raw_affiliation_strings":["Institute of Meteorology and Oceanography, National University of Defense Technology, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0002-3819-2365","affiliations":[{"raw_affiliation_string":"Institute of Meteorology and Oceanography, National University of Defense Technology, Nanjing, China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101089566","display_name":"Sixun Huang","orcid":null},"institutions":[{"id":"https://openalex.org/I4210109544","display_name":"Second Institute of Oceanography","ror":"https://ror.org/01tkb7c15","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210109544"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Sixun Huang","raw_affiliation_strings":["State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, China","institution_ids":["https://openalex.org/I4210109544"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5012433446","display_name":"Shuai L\u00fc","orcid":"https://orcid.org/0000-0002-8081-4498"},"institutions":[{"id":"https://openalex.org/I24943067","display_name":"Fudan University","ror":"https://ror.org/013q1eq08","country_code":"CN","type":"education","lineage":["https://openalex.org/I24943067"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shuai Lu","raw_affiliation_strings":["School of Mathematical Sciences, Fudan University, Shanghai, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Mathematical Sciences, Fudan University, Shanghai, China","institution_ids":["https://openalex.org/I24943067"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5075602545","display_name":"Bing Yan","orcid":null},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Bing Yan","raw_affiliation_strings":["Institute of Meteorology and Oceanography, National University of Defense Technology, Nanjing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Meteorology and Oceanography, National University of Defense Technology, Nanjing, China","institution_ids":["https://openalex.org/I170215575"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.2525,"has_fulltext":false,"cited_by_count":12,"citation_normalized_percentile":{"value":0.58136166,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"57","issue":"6","first_page":"3135","last_page":"3147"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11778","display_name":"Electrical and Bioimpedance Tomography","score":0.9979000091552734,"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/T11778","display_name":"Electrical and Bioimpedance Tomography","score":0.9979000091552734,"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/T10572","display_name":"Geophysical and Geoelectrical Methods","score":0.9961000084877014,"subfield":{"id":"https://openalex.org/subfields/1908","display_name":"Geophysics"},"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/T10844","display_name":"Radiation Dose and Imaging","score":0.9947999715805054,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/tikhonov-regularization","display_name":"Tikhonov regularization","score":0.8617674112319946},{"id":"https://openalex.org/keywords/inverse-problem","display_name":"Inverse problem","score":0.6338408589363098},{"id":"https://openalex.org/keywords/tomography","display_name":"Tomography","score":0.5365045070648193},{"id":"https://openalex.org/keywords/regularization","display_name":"Regularization (linguistics)","score":0.5352702140808105},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4769821763038635},{"id":"https://openalex.org/keywords/curve-fitting","display_name":"Curve fitting","score":0.43479594588279724},{"id":"https://openalex.org/keywords/ionosphere","display_name":"Ionosphere","score":0.4175602197647095},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3806942105293274},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3690912127494812},{"id":"https://openalex.org/keywords/applied-mathematics","display_name":"Applied mathematics","score":0.3252685070037842},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.32377147674560547},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.26012933254241943},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.20975124835968018},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.1771106719970703},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.159532368183136},{"id":"https://openalex.org/keywords/geophysics","display_name":"Geophysics","score":0.13982468843460083},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.13798850774765015},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.10447508096694946}],"concepts":[{"id":"https://openalex.org/C152442038","wikidata":"https://www.wikidata.org/wiki/Q2778212","display_name":"Tikhonov regularization","level":3,"score":0.8617674112319946},{"id":"https://openalex.org/C135252773","wikidata":"https://www.wikidata.org/wiki/Q1567213","display_name":"Inverse problem","level":2,"score":0.6338408589363098},{"id":"https://openalex.org/C163716698","wikidata":"https://www.wikidata.org/wiki/Q841267","display_name":"Tomography","level":2,"score":0.5365045070648193},{"id":"https://openalex.org/C2776135515","wikidata":"https://www.wikidata.org/wiki/Q17143721","display_name":"Regularization (linguistics)","level":2,"score":0.5352702140808105},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4769821763038635},{"id":"https://openalex.org/C184389593","wikidata":"https://www.wikidata.org/wiki/Q603159","display_name":"Curve fitting","level":2,"score":0.43479594588279724},{"id":"https://openalex.org/C116403925","wikidata":"https://www.wikidata.org/wiki/Q162219","display_name":"Ionosphere","level":2,"score":0.4175602197647095},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3806942105293274},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3690912127494812},{"id":"https://openalex.org/C28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","level":1,"score":0.3252685070037842},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.32377147674560547},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.26012933254241943},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.20975124835968018},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.1771106719970703},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.159532368183136},{"id":"https://openalex.org/C8058405","wikidata":"https://www.wikidata.org/wiki/Q46255","display_name":"Geophysics","level":1,"score":0.13982468843460083},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.13798850774765015},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.10447508096694946}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tgrs.2018.2881124","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2018.2881124","pdf_url":null,"source":{"id":"https://openalex.org/S111326731","display_name":"IEEE Transactions on Geoscience and Remote Sensing","issn_l":"0196-2892","issn":["0196-2892","1558-0644"],"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 Geoscience and Remote Sensing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1895541388","display_name":null,"funder_award_id":"91730304","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3998603457","display_name":null,"funder_award_id":"41804149","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G4995176142","display_name":null,"funder_award_id":"41575026","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":42,"referenced_works":["https://openalex.org/W2325372","https://openalex.org/W1527223577","https://openalex.org/W1531455566","https://openalex.org/W1539887494","https://openalex.org/W1599410111","https://openalex.org/W1607407460","https://openalex.org/W1645324970","https://openalex.org/W1660808673","https://openalex.org/W1965352016","https://openalex.org/W1968735445","https://openalex.org/W1981140607","https://openalex.org/W1990381576","https://openalex.org/W1998220060","https://openalex.org/W2021059374","https://openalex.org/W2023027034","https://openalex.org/W2029361296","https://openalex.org/W2032835044","https://openalex.org/W2042258033","https://openalex.org/W2057170663","https://openalex.org/W2061390890","https://openalex.org/W2064645482","https://openalex.org/W2090122630","https://openalex.org/W2091345810","https://openalex.org/W2091515690","https://openalex.org/W2095566531","https://openalex.org/W2116545667","https://openalex.org/W2130129191","https://openalex.org/W2137378983","https://openalex.org/W2143511888","https://openalex.org/W2149846618","https://openalex.org/W2153568285","https://openalex.org/W2154296673","https://openalex.org/W2168987504","https://openalex.org/W2170540893","https://openalex.org/W2287072538","https://openalex.org/W2342393718","https://openalex.org/W2466155611","https://openalex.org/W2498217792","https://openalex.org/W2551648724","https://openalex.org/W6631576268","https://openalex.org/W6673481148","https://openalex.org/W6719175281"],"related_works":["https://openalex.org/W4385317013","https://openalex.org/W2521794430","https://openalex.org/W2744170926","https://openalex.org/W2065950826","https://openalex.org/W4210488957","https://openalex.org/W2373436489","https://openalex.org/W2594184273","https://openalex.org/W2507941141","https://openalex.org/W2922376621","https://openalex.org/W2952338995"],"abstract_inverted_index":{"Ionospheric":[0],"tomography":[1],"based":[2],"on":[3],"the":[4,20,33,41,54,57,67,71,75,85,88,108,115,126,135],"observed":[5],"total":[6],"electron":[7,21,44],"content":[8],"along":[9],"different":[10],"satellite-receiver":[11],"rays":[12],"is":[13,37,50,79],"a":[14,47],"typically":[15],"ill-posed":[16],"inverse":[17],"problem.":[18],"Incorporating":[19],"density":[22],"profiles":[23],"data":[24],"from":[25],"COSMIC":[26],"radio":[27],"occultation":[28],"technique":[29],"and":[30,46,62,92,95,118,125],"ground":[31],"ionosondes,":[32],"Tikhonov":[34],"regularization":[35,48,69],"method":[36,78,83],"adopted":[38],"to":[39,52],"reconstruct":[40],"3-D":[42],"ionospheric":[43],"density,":[45],"parameter":[49],"used":[51],"balance":[53],"weights":[55],"between":[56],"prior":[58],"(or":[59],"background)":[60],"information":[61],"real":[63,119],"measurements.":[64],"To":[65,106],"determine":[66],"optimal":[68],"parameter,":[70],"model":[72,89,137],"function":[73,90],"in":[74],"modified":[76],"L-curve":[77,93],"used.":[80],"This":[81],"new":[82],"combines":[84],"advantages":[86],"of":[87,110],"approach":[91],"criterion,":[94],"it":[96],"has":[97],"not":[98],"only":[99],"high":[100],"accuracy,":[101],"but":[102],"also":[103],"rapid":[104],"convergence.":[105],"validate":[107],"effectiveness":[109],"this":[111,130],"reconstruction":[112],"algorithm,":[113],"both":[114],"ideal":[116],"test":[117,121],"measurements":[120],"are":[122],"carried":[123],"out,":[124],"results":[127],"show":[128],"that":[129],"algorithm":[131],"can":[132],"significantly":[133],"improve":[134],"background":[136],"outputs.":[138]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":1},{"year":2019,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
