{"id":"https://openalex.org/W4313856046","doi":"https://doi.org/10.1109/tgrs.2023.3234915","title":"Wavefield Separation Algorithm of Helmholtz Theory-Based Discontinuous Galerkin Method Using Unstructured Meshes on GPU","display_name":"Wavefield Separation Algorithm of Helmholtz Theory-Based Discontinuous Galerkin Method Using Unstructured Meshes on GPU","publication_year":2023,"publication_date":"2023-01-01","ids":{"openalex":"https://openalex.org/W4313856046","doi":"https://doi.org/10.1109/tgrs.2023.3234915"},"language":"en","primary_location":{"id":"doi:10.1109/tgrs.2023.3234915","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2023.3234915","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/A5046181759","display_name":"Jiandong Huang","orcid":null},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Jiandong Huang","raw_affiliation_strings":["Department of Mathematical Sciences, Tsinghua University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Department of Mathematical Sciences, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5046236371","display_name":"Dinghui Yang","orcid":"https://orcid.org/0000-0002-1320-7444"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Dinghui Yang","raw_affiliation_strings":["Department of Mathematical Sciences, Tsinghua University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Department of Mathematical Sciences, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5001721225","display_name":"Xijun He","orcid":null},"institutions":[{"id":"https://openalex.org/I179026463","display_name":"Beijing Technology and Business University","ror":"https://ror.org/013e0zm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I179026463"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xijun He","raw_affiliation_strings":["School of Mathematics and Statistics, Beijing Technology and Business University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"School of Mathematics and Statistics, Beijing Technology and Business University, Beijing, China","institution_ids":["https://openalex.org/I179026463"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5046181759"],"corresponding_institution_ids":["https://openalex.org/I99065089"],"apc_list":null,"apc_paid":null,"fwci":1.9457,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.8254972,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":"61","issue":null,"first_page":"1","last_page":"10"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10271","display_name":"Seismic Imaging and Inversion Techniques","score":1.0,"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"}},"topics":[{"id":"https://openalex.org/T10271","display_name":"Seismic Imaging and Inversion Techniques","score":1.0,"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/T11757","display_name":"Seismic Waves and Analysis","score":0.9987999796867371,"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/T11609","display_name":"Geophysical Methods and Applications","score":0.9980000257492065,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean 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/polygon-mesh","display_name":"Polygon mesh","score":0.6493415236473083},{"id":"https://openalex.org/keywords/discontinuous-galerkin-method","display_name":"Discontinuous Galerkin method","score":0.6439501047134399},{"id":"https://openalex.org/keywords/discretization","display_name":"Discretization","score":0.6376021504402161},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.6313996315002441},{"id":"https://openalex.org/keywords/unstructured-grid","display_name":"Unstructured grid","score":0.612494170665741},{"id":"https://openalex.org/keywords/grid","display_name":"Grid","score":0.530910849571228},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4818888306617737},{"id":"https://openalex.org/keywords/operator","display_name":"Operator (biology)","score":0.45120206475257874},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.3202451467514038},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2869378328323364},{"id":"https://openalex.org/keywords/finite-element-method","display_name":"Finite element method","score":0.25031816959381104},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.19908514618873596}],"concepts":[{"id":"https://openalex.org/C31487907","wikidata":"https://www.wikidata.org/wiki/Q1154597","display_name":"Polygon mesh","level":2,"score":0.6493415236473083},{"id":"https://openalex.org/C92244383","wikidata":"https://www.wikidata.org/wiki/Q428273","display_name":"Discontinuous Galerkin method","level":3,"score":0.6439501047134399},{"id":"https://openalex.org/C73000952","wikidata":"https://www.wikidata.org/wiki/Q17007827","display_name":"Discretization","level":2,"score":0.6376021504402161},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.6313996315002441},{"id":"https://openalex.org/C134620963","wikidata":"https://www.wikidata.org/wiki/Q17078677","display_name":"Unstructured grid","level":3,"score":0.612494170665741},{"id":"https://openalex.org/C187691185","wikidata":"https://www.wikidata.org/wiki/Q2020720","display_name":"Grid","level":2,"score":0.530910849571228},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4818888306617737},{"id":"https://openalex.org/C17020691","wikidata":"https://www.wikidata.org/wiki/Q139677","display_name":"Operator (biology)","level":5,"score":0.45120206475257874},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.3202451467514038},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2869378328323364},{"id":"https://openalex.org/C135628077","wikidata":"https://www.wikidata.org/wiki/Q220184","display_name":"Finite element method","level":2,"score":0.25031816959381104},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.19908514618873596},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C158448853","wikidata":"https://www.wikidata.org/wiki/Q425218","display_name":"Repressor","level":4,"score":0.0},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.0},{"id":"https://openalex.org/C86339819","wikidata":"https://www.wikidata.org/wiki/Q407384","display_name":"Transcription factor","level":3,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tgrs.2023.3234915","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2023.3234915","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/G8368203158","display_name":null,"funder_award_id":"U1839206","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8797494862","display_name":null,"funder_award_id":"41974114","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":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":53,"referenced_works":["https://openalex.org/W1985883290","https://openalex.org/W1990711078","https://openalex.org/W1990899973","https://openalex.org/W2005681997","https://openalex.org/W2012029480","https://openalex.org/W2012833431","https://openalex.org/W2015975689","https://openalex.org/W2017954148","https://openalex.org/W2032231305","https://openalex.org/W2033911775","https://openalex.org/W2060587093","https://openalex.org/W2092113481","https://openalex.org/W2094563755","https://openalex.org/W2101915079","https://openalex.org/W2108729135","https://openalex.org/W2119821054","https://openalex.org/W2127563055","https://openalex.org/W2143526848","https://openalex.org/W2145007271","https://openalex.org/W2145329088","https://openalex.org/W2147516422","https://openalex.org/W2149697434","https://openalex.org/W2163138559","https://openalex.org/W2168083197","https://openalex.org/W2175727274","https://openalex.org/W2197350537","https://openalex.org/W2296705788","https://openalex.org/W2321431331","https://openalex.org/W2323516589","https://openalex.org/W2413066866","https://openalex.org/W2417983942","https://openalex.org/W2545572803","https://openalex.org/W2548830941","https://openalex.org/W2588571271","https://openalex.org/W2590052657","https://openalex.org/W2646298597","https://openalex.org/W2756099563","https://openalex.org/W2792360388","https://openalex.org/W2904912963","https://openalex.org/W2905467248","https://openalex.org/W2925106712","https://openalex.org/W2938187146","https://openalex.org/W3034237290","https://openalex.org/W3048499154","https://openalex.org/W3111528335","https://openalex.org/W3119086875","https://openalex.org/W3162166087","https://openalex.org/W3168448130","https://openalex.org/W3185314121","https://openalex.org/W3213768042","https://openalex.org/W4200200808","https://openalex.org/W4221095634","https://openalex.org/W4246409132"],"related_works":["https://openalex.org/W2078211002","https://openalex.org/W1562286121","https://openalex.org/W2575863433","https://openalex.org/W1665238360","https://openalex.org/W4287750625","https://openalex.org/W1993287754","https://openalex.org/W1987075037","https://openalex.org/W1528838437","https://openalex.org/W4313524452","https://openalex.org/W2586161487"],"abstract_inverted_index":{"In":[0,38],"the":[1,5,15,70,79,106,117,157,163,167,180,191],"field":[2],"of":[3,89,185],"geophysics,":[4],"Helmholtz":[6],"decomposition":[7],"(HD)":[8],"formula":[9,72],"is":[10,59,113],"mainly":[11],"numerically":[12],"discretized":[13],"by":[14,126],"finite":[16],"difference":[17],"method":[18,82],"(FDM),":[19],"which":[20,94],"limits":[21],"its":[22],"application":[23],"to":[24,43,49,102,115,145],"a":[25,45,74,122],"uniform":[26],"regular":[27],"grid":[28],"only.":[29],"Few":[30],"scholars":[31],"note":[32],"wavefield":[33,46,158],"separation":[34,47,159,200],"on":[35,54,61,151,201],"unstructured":[36,90,128,152,202],"grids.":[37,56],"this":[39],"study,":[40],"we":[41,85],"aim":[42],"develop":[44],"algorithm":[48],"separate":[50,147],"P-":[51,148],"and":[52,92,130,149,161,173,183,190],"S-wavefields":[53,150],"nonuniform":[55],"Our":[57,139],"scheme":[58],"based":[60],"an":[62],"isotropic":[63],"elastic":[64],"wave":[65],"equation.":[66],"We":[67,120,154],"first":[68],"transform":[69],"HD":[71,141],"into":[73,132],"weak":[75],"integral":[76],"form":[77],"using":[78,136],"discontinuous":[80],"Galerkin":[81],"(DGM).":[83],"Then,":[84],"consider":[86],"two":[87],"types":[88],"meshes\u2014triangle":[91],"quadrangle,":[93],"are":[95],"more":[96],"suitable":[97],"for":[98,198],"complex":[99],"structures.":[100],"Moreover,":[101],"reduce":[103],"time":[104],"costs,":[105],"single":[107],"graphic":[108],"processor":[109],"unit":[110],"(GPU)":[111],"device":[112],"used":[114],"improve":[116],"computational":[118],"efficiency.":[119],"perform":[121],"unified":[123],"DGM":[124],"operator":[125,142],"transforming":[127],"triangles":[129],"quadrangles":[131],"standard":[133],"reference":[134],"elements":[135],"coordinate":[137],"transformation.":[138],"proposed":[140,187],"enables":[143],"us":[144],"effectively":[146],"meshes.":[153,203],"carry":[155],"out":[156],"simulation":[160],"calculate":[162],"numerical":[164,193],"solutions":[165],"in":[166],"homogeneous":[168,177],"carbonate":[169],"model,":[170,172],"Graben":[171],"SEG/EAGE":[174],"model.":[175],"The":[176],"model":[178],"verifies":[179],"correctness,":[181],"availability,":[182],"superiority":[184],"our":[186],"separated":[188],"operator,":[189],"other":[192],"results":[194],"show":[195],"excellent":[196],"performance":[197],"P/S-wavefield":[199]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":5}],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2025-10-10T00:00:00"}
