{"id":"https://openalex.org/W4394842108","doi":"https://doi.org/10.1109/tgrs.2024.3389997","title":"High-Squinted Spaceborne SAR Data Focusing in the Sliding-Spotlight Mode","display_name":"High-Squinted Spaceborne SAR Data Focusing in the Sliding-Spotlight Mode","publication_year":2024,"publication_date":"2024-01-01","ids":{"openalex":"https://openalex.org/W4394842108","doi":"https://doi.org/10.1109/tgrs.2024.3389997"},"language":"en","primary_location":{"id":"doi:10.1109/tgrs.2024.3389997","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2024.3389997","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":true,"oa_status":"green","oa_url":"https://qmro.qmul.ac.uk/xmlui/bitstream/123456789/96459/2/Liu%20High-Squinted%20Spaceborne%202024%20Accepted.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100678571","display_name":"Yanfang Liu","orcid":"https://orcid.org/0000-0001-6524-2762"},"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":"Yanfang Liu","raw_affiliation_strings":["School of Electronic and Information Engineering, Beihang University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"School of Electronic and Information Engineering, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047073083","display_name":"Wei Yang","orcid":"https://orcid.org/0000-0001-8935-294X"},"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":"Wei Yang","raw_affiliation_strings":["School of Electronic and Information Engineering, Beihang University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"School of Electronic and Information Engineering, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010566938","display_name":"Wei Qi","orcid":"https://orcid.org/0000-0003-3948-835X"},"institutions":[{"id":"https://openalex.org/I4210136246","display_name":"China Telecom (China)","ror":"https://ror.org/03jgnzt20","country_code":"CN","type":"company","lineage":["https://openalex.org/I4210136246"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qi Wei","raw_affiliation_strings":["Beijing Institute of Tracking and Telecommunication Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Beijing Institute of Tracking and Telecommunication Technology, Beijing, China","institution_ids":["https://openalex.org/I4210136246"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5041138969","display_name":"Hongcheng Zeng","orcid":"https://orcid.org/0000-0002-4727-9980"},"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":"Hongcheng Zeng","raw_affiliation_strings":["School of Electronic and Information Engineering, Beihang University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"School of Electronic and Information Engineering, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062908102","display_name":"Wei Liu","orcid":"https://orcid.org/0000-0003-2968-2888"},"institutions":[{"id":"https://openalex.org/I166337079","display_name":"Queen Mary University of London","ror":"https://ror.org/026zzn846","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I166337079"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Wei Liu","raw_affiliation_strings":["School of Electronic Engineering and Computer Science, Queen Mary University of London, London, U.K"],"affiliations":[{"raw_affiliation_string":"School of Electronic Engineering and Computer Science, Queen Mary University of London, London, U.K","institution_ids":["https://openalex.org/I166337079"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100332980","display_name":"Jie Chen","orcid":"https://orcid.org/0000-0002-9370-3965"},"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":"Jie Chen","raw_affiliation_strings":["School of Electronic and Information Engineering, Beihang University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"School of Electronic and Information Engineering, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100440503","display_name":"Chunsheng Li","orcid":"https://orcid.org/0000-0001-9050-9078"},"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":"Chunsheng Li","raw_affiliation_strings":["School of Electronic and Information Engineering, Beihang University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"School of Electronic and Information Engineering, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5006416368","display_name":"Weijie Wang","orcid":"https://orcid.org/0000-0002-9900-0953"},"institutions":[{"id":"https://openalex.org/I4210146919","display_name":"Shanghai Industrial Technology Institute","ror":"https://ror.org/03j1pdd39","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210146919"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Weijie Wang","raw_affiliation_strings":["Shanghai Aerospace Electronic Technology Institute, Shanghai, China"],"affiliations":[{"raw_affiliation_string":"Shanghai Aerospace Electronic Technology Institute, Shanghai, China","institution_ids":["https://openalex.org/I4210146919"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5051046558","display_name":"Weiwei Ji","orcid":null},"institutions":[{"id":"https://openalex.org/I4210146919","display_name":"Shanghai Industrial Technology Institute","ror":"https://ror.org/03j1pdd39","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210146919"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Weiwei Ji","raw_affiliation_strings":["Shanghai Aerospace Electronic Technology Institute, Shanghai, China"],"affiliations":[{"raw_affiliation_string":"Shanghai Aerospace Electronic Technology Institute, Shanghai, China","institution_ids":["https://openalex.org/I4210146919"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":9,"corresponding_author_ids":["https://openalex.org/A5100678571"],"corresponding_institution_ids":["https://openalex.org/I82880672"],"apc_list":null,"apc_paid":null,"fwci":2.5992,"has_fulltext":true,"cited_by_count":2,"citation_normalized_percentile":{"value":0.90611679,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":96},"biblio":{"volume":"62","issue":null,"first_page":"1","last_page":"14"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":0.9908000230789185,"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/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":0.9908000230789185,"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/T11038","display_name":"Advanced SAR Imaging Techniques","score":0.9861999750137329,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.6867956519126892},{"id":"https://openalex.org/keywords/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.5942284464836121},{"id":"https://openalex.org/keywords/mode","display_name":"Mode (computer interface)","score":0.5941024422645569},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.48619574308395386},{"id":"https://openalex.org/keywords/azimuth","display_name":"Azimuth","score":0.4776652753353119},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.41681891679763794},{"id":"https://openalex.org/keywords/geodesy","display_name":"Geodesy","score":0.37507790327072144},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.20672741532325745},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.12005311250686646}],"concepts":[{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.6867956519126892},{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.5942284464836121},{"id":"https://openalex.org/C48677424","wikidata":"https://www.wikidata.org/wiki/Q6888088","display_name":"Mode (computer interface)","level":2,"score":0.5941024422645569},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.48619574308395386},{"id":"https://openalex.org/C159737794","wikidata":"https://www.wikidata.org/wiki/Q124274","display_name":"Azimuth","level":2,"score":0.4776652753353119},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.41681891679763794},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.37507790327072144},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.20672741532325745},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.12005311250686646},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tgrs.2024.3389997","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2024.3389997","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"},{"id":"pmh:oai:qmro.qmul.ac.uk:123456789/96459","is_oa":true,"landing_page_url":"https://qmro.qmul.ac.uk/xmlui/handle/123456789/96459","pdf_url":"https://qmro.qmul.ac.uk/xmlui/bitstream/123456789/96459/2/Liu%20High-Squinted%20Spaceborne%202024%20Accepted.pdf","source":{"id":"https://openalex.org/S4306400530","display_name":"Queen Mary Research Online (Queen Mary University of London)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I166337079","host_organization_name":"Queen Mary University of London","host_organization_lineage":["https://openalex.org/I166337079"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"}],"best_oa_location":{"id":"pmh:oai:qmro.qmul.ac.uk:123456789/96459","is_oa":true,"landing_page_url":"https://qmro.qmul.ac.uk/xmlui/handle/123456789/96459","pdf_url":"https://qmro.qmul.ac.uk/xmlui/bitstream/123456789/96459/2/Liu%20High-Squinted%20Spaceborne%202024%20Accepted.pdf","source":{"id":"https://openalex.org/S4306400530","display_name":"Queen Mary Research Online (Queen Mary University of London)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I166337079","host_organization_name":"Queen Mary University of London","host_organization_lineage":["https://openalex.org/I166337079"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1219968712","display_name":null,"funder_award_id":"62271028","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3545292666","display_name":null,"funder_award_id":"62101014","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7383137574","display_name":null,"funder_award_id":"4222006","funder_id":"https://openalex.org/F4320322919","funder_display_name":"Natural Science Foundation of Beijing Municipality"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320322919","display_name":"Natural Science Foundation of Beijing Municipality","ror":null}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4394842108.pdf","grobid_xml":"https://content.openalex.org/works/W4394842108.grobid-xml"},"referenced_works_count":32,"referenced_works":["https://openalex.org/W1510539975","https://openalex.org/W1968818062","https://openalex.org/W2017157697","https://openalex.org/W2042706080","https://openalex.org/W2047941860","https://openalex.org/W2049734132","https://openalex.org/W2070538293","https://openalex.org/W2101961721","https://openalex.org/W2103030298","https://openalex.org/W2116246712","https://openalex.org/W2117740523","https://openalex.org/W2120024360","https://openalex.org/W2134062774","https://openalex.org/W2137214513","https://openalex.org/W2138038546","https://openalex.org/W2138190376","https://openalex.org/W2138366711","https://openalex.org/W2138542190","https://openalex.org/W2152897285","https://openalex.org/W2154331202","https://openalex.org/W2161208433","https://openalex.org/W2161745552","https://openalex.org/W2245827188","https://openalex.org/W2516269052","https://openalex.org/W2604782053","https://openalex.org/W2745665763","https://openalex.org/W2769124481","https://openalex.org/W2944927189","https://openalex.org/W2995815100","https://openalex.org/W3105674057","https://openalex.org/W3132507052","https://openalex.org/W3207968556"],"related_works":["https://openalex.org/W2483195039","https://openalex.org/W2048211457","https://openalex.org/W2281797687","https://openalex.org/W2358411735","https://openalex.org/W4250650723","https://openalex.org/W2068843146","https://openalex.org/W2462749609","https://openalex.org/W2071131471","https://openalex.org/W4252699458","https://openalex.org/W2391592989"],"abstract_inverted_index":{"Processing":[0],"high-squinted":[1,52],"spaceborne":[2,53],"SAR":[3,54],"data":[4,55],"in":[5,36,56,119],"the":[6,28,37,57,74,80,109,117,120,137,140],"sliding-spotlight":[7,58],"mode":[8],"is":[9,48,90,105,129],"a":[10,44,84],"challenging":[11],"task":[12],"due":[13],"to":[14,72,135],"azimuth":[15,113],"spectral":[16],"aliasing":[17,110],"and":[18,25,66,115],"range-azimuth":[19],"coupling":[20,75],"for":[21,50,92,107],"frequency-domain":[22],"imaging":[23,46],"algorithms,":[24],"most":[26],"critically,":[27],"variation":[29],"of":[30,76,112,139],"Doppler":[31,81],"parameters":[32],"causes":[33],"significant":[34],"reduction":[35],"depth-of-":[38],"azimuth-focus":[39],"(DOAF).":[40],"In":[41],"this":[42],"paper,":[43],"novel":[45],"algorithm":[47,88],"proposed":[49,141],"focusing":[51],"mode.":[59],"First,":[60],"linear":[61],"range":[62,67,77,86],"walk":[63],"correction":[64],"(LRWC)":[65],"frequency-dependent":[68],"de-rotation":[69],"are":[70,133],"applied":[71],"remove":[73],"frequency":[78],"with":[79,99],"parameters.":[82],"Then,":[83],"modified":[85],"migration":[87],"(RMA)":[89],"derived":[91],"accurate":[93],"focusing.":[94],"The":[95],"de-ramp":[96],"operation":[97],"combined":[98],"improved":[100],"nonlinear":[101],"chirp":[102],"scaling":[103],"(INCS)":[104],"employed":[106],"solving":[108],"problem":[111],"time":[114],"extending":[116],"depth-of-azimuth-focus":[118],"third":[121],"step.":[122],"Finally,":[123],"geometry":[124],"distortion":[125],"caused":[126],"by":[127],"LRWC":[128],"corrected.":[130],"Simulation":[131],"results":[132],"provided":[134],"demonstrate":[136],"effectiveness":[138],"algorithm.":[142]},"counts_by_year":[{"year":2024,"cited_by_count":2}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}