{"id":"https://openalex.org/W2086927121","doi":"https://doi.org/10.1109/igarss.2013.6721305","title":"A new approach for spotlight geosynchronous SAR data focusing","display_name":"A new approach for spotlight geosynchronous SAR data focusing","publication_year":2013,"publication_date":"2013-07-01","ids":{"openalex":"https://openalex.org/W2086927121","doi":"https://doi.org/10.1109/igarss.2013.6721305","mag":"2086927121"},"language":"en","primary_location":{"id":"doi:10.1109/igarss.2013.6721305","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2013.6721305","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2013 IEEE International Geoscience and Remote Sensing Symposium - IGARSS","raw_type":"proceedings-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/A5101811602","display_name":"Bingji Zhao","orcid":"https://orcid.org/0000-0001-6112-3918"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"funder","lineage":["https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Bingji Zhao","raw_affiliation_strings":["Department of Space Microwave Remote Sensing System, Chinese Academy of Sciences, Beijing, China","Dept. of Space Microwave Remote Sensing Syst., Inst. of Electron., Beijing, China"],"affiliations":[{"raw_affiliation_string":"Department of Space Microwave Remote Sensing System, Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I19820366"]},{"raw_affiliation_string":"Dept. of Space Microwave Remote Sensing Syst., Inst. of Electron., Beijing, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5105357044","display_name":"Xiangyang Qi","orcid":null},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"funder","lineage":["https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiangyang Qi","raw_affiliation_strings":["Department of Space Microwave Remote Sensing System, Chinese Academy of Sciences, Beijing, China","Dept. of Space Microwave Remote Sensing Syst., Inst. of Electron., Beijing, China"],"affiliations":[{"raw_affiliation_string":"Department of Space Microwave Remote Sensing System, Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I19820366"]},{"raw_affiliation_string":"Dept. of Space Microwave Remote Sensing Syst., Inst. of Electron., Beijing, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5009183873","display_name":"Hongjun Song","orcid":"https://orcid.org/0000-0002-8720-5310"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"funder","lineage":["https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hongjun Song","raw_affiliation_strings":["Department of Space Microwave Remote Sensing System, Chinese Academy of Sciences, Beijing, China","Dept. of Space Microwave Remote Sensing Syst., Inst. of Electron., Beijing, China"],"affiliations":[{"raw_affiliation_string":"Department of Space Microwave Remote Sensing System, Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I19820366"]},{"raw_affiliation_string":"Dept. of Space Microwave Remote Sensing Syst., Inst. of Electron., Beijing, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5032677320","display_name":"Robert Wang","orcid":"https://orcid.org/0000-0002-9850-7015"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"funder","lineage":["https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Robert Wang","raw_affiliation_strings":["Department of Space Microwave Remote Sensing System, Chinese Academy of Sciences, Beijing, China","Dept. of Space Microwave Remote Sensing Syst., Inst. of Electron., Beijing, China"],"affiliations":[{"raw_affiliation_string":"Department of Space Microwave Remote Sensing System, Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I19820366"]},{"raw_affiliation_string":"Dept. of Space Microwave Remote Sensing Syst., Inst. of Electron., Beijing, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102004114","display_name":"Zhiguang Zhang","orcid":"https://orcid.org/0000-0002-8203-118X"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"funder","lineage":["https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhiguang Zhang","raw_affiliation_strings":["Department of Space Microwave Remote Sensing System, Chinese Academy of Sciences, Beijing, China","Dept. of Space Microwave Remote Sensing Syst., Inst. of Electron., Beijing, China"],"affiliations":[{"raw_affiliation_string":"Department of Space Microwave Remote Sensing System, Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I19820366"]},{"raw_affiliation_string":"Dept. of Space Microwave Remote Sensing Syst., Inst. of Electron., Beijing, China","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5022850202","display_name":"Hai Jiang","orcid":"https://orcid.org/0000-0003-1042-4897"},"institutions":[{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"funder","lineage":["https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hai Jiang","raw_affiliation_strings":["Department of Space Microwave Remote Sensing System, Chinese Academy of Sciences, Beijing, China","Dept. of Space Microwave Remote Sensing Syst., Inst. of Electron., Beijing, China"],"affiliations":[{"raw_affiliation_string":"Department of Space Microwave Remote Sensing System, Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I19820366"]},{"raw_affiliation_string":"Dept. of Space Microwave Remote Sensing Syst., Inst. of Electron., Beijing, China","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5101811602"],"corresponding_institution_ids":["https://openalex.org/I19820366"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.09378788,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":95},"biblio":{"volume":null,"issue":null,"first_page":"899","last_page":"902"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11038","display_name":"Advanced SAR Imaging Techniques","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/T11038","display_name":"Advanced SAR Imaging Techniques","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/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":0.9997000098228455,"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/T11739","display_name":"Microwave Imaging and Scattering Analysis","score":0.9922000169754028,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/geosynchronous-orbit","display_name":"Geosynchronous orbit","score":0.9190652370452881},{"id":"https://openalex.org/keywords/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.8773982524871826},{"id":"https://openalex.org/keywords/azimuth","display_name":"Azimuth","score":0.7352031469345093},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6355507373809814},{"id":"https://openalex.org/keywords/inverse-synthetic-aperture-radar","display_name":"Inverse synthetic aperture radar","score":0.5857869386672974},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.5189385414123535},{"id":"https://openalex.org/keywords/radar-imaging","display_name":"Radar imaging","score":0.47842103242874146},{"id":"https://openalex.org/keywords/range","display_name":"Range (aeronautics)","score":0.4492199122905731},{"id":"https://openalex.org/keywords/orbit","display_name":"Orbit (dynamics)","score":0.44241347908973694},{"id":"https://openalex.org/keywords/geodesy","display_name":"Geodesy","score":0.3467905819416046},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.33842402696609497},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.3228073716163635},{"id":"https://openalex.org/keywords/satellite","display_name":"Satellite","score":0.29871249198913574},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.2346898317337036},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.18056181073188782},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.15547221899032593},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.10446375608444214},{"id":"https://openalex.org/keywords/aerospace-engineering","display_name":"Aerospace engineering","score":0.07633113861083984},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.07326140999794006}],"concepts":[{"id":"https://openalex.org/C94042562","wikidata":"https://www.wikidata.org/wiki/Q472251","display_name":"Geosynchronous orbit","level":3,"score":0.9190652370452881},{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.8773982524871826},{"id":"https://openalex.org/C159737794","wikidata":"https://www.wikidata.org/wiki/Q124274","display_name":"Azimuth","level":2,"score":0.7352031469345093},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6355507373809814},{"id":"https://openalex.org/C109094680","wikidata":"https://www.wikidata.org/wiki/Q6060432","display_name":"Inverse synthetic aperture radar","level":4,"score":0.5857869386672974},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.5189385414123535},{"id":"https://openalex.org/C10929652","wikidata":"https://www.wikidata.org/wiki/Q7279985","display_name":"Radar imaging","level":3,"score":0.47842103242874146},{"id":"https://openalex.org/C204323151","wikidata":"https://www.wikidata.org/wiki/Q905424","display_name":"Range (aeronautics)","level":2,"score":0.4492199122905731},{"id":"https://openalex.org/C196644772","wikidata":"https://www.wikidata.org/wiki/Q3884964","display_name":"Orbit (dynamics)","level":2,"score":0.44241347908973694},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.3467905819416046},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.33842402696609497},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.3228073716163635},{"id":"https://openalex.org/C19269812","wikidata":"https://www.wikidata.org/wiki/Q26540","display_name":"Satellite","level":2,"score":0.29871249198913574},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.2346898317337036},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.18056181073188782},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.15547221899032593},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.10446375608444214},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.07633113861083984},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.07326140999794006},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss.2013.6721305","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2013.6721305","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2013 IEEE International Geoscience and Remote Sensing Symposium - IGARSS","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W357677209","https://openalex.org/W2020555418","https://openalex.org/W2031858497","https://openalex.org/W2095807826","https://openalex.org/W2116540125","https://openalex.org/W2129306709","https://openalex.org/W2138863700","https://openalex.org/W2202172511","https://openalex.org/W6687950767"],"related_works":["https://openalex.org/W2068843146","https://openalex.org/W2074347802","https://openalex.org/W2617331287","https://openalex.org/W1952060579","https://openalex.org/W2462749609","https://openalex.org/W2086927121","https://openalex.org/W4210472786","https://openalex.org/W2540450177","https://openalex.org/W2170580735","https://openalex.org/W1552305638"],"abstract_inverted_index":{"Besides":[0],"the":[1,4,18,24,46,57,72,78,82,85,96,107],"evident":[2],"superiority,":[3],"Geosynchronous":[5],"Earth":[6],"orbit":[7],"synthetic":[8,83],"aperture":[9],"radar":[10],"(Geo-SAR)":[11],"system":[12,111],"meets":[13],"great":[14],"more":[15],"challenges":[16],"than":[17],"current":[19],"Low-Earth-Orbital":[20],"SAR":[21,26],"(Leo-SAR)":[22],"and":[23,71],"Medium-Earth-Orbit":[25],"(Meo-SAR).":[27],"The":[28,64],"signal":[29],"processing":[30],"approach":[31],"for":[32,91],"spotlight":[33,109],"mode":[34],"Geo-SAR":[35,110],"is":[36,53,89],"discussed":[37],"in":[38],"this":[39],"paper.":[40],"A":[41],"new":[42],"range":[43,50],"model":[44,51],"called":[45],"sixth-order":[47,59],"Doppler":[48,60],"parameter":[49,61],"(DRM-6)":[52],"derived":[54],"based":[55],"on":[56,106],"accurate":[58],"calculation":[62],"algorithm.":[63],"accuracy":[65],"of":[66,81],"Hyperbolic":[67],"Range":[68],"equation":[69],"(HRE)":[70],"DRM-6":[73,101],"are":[74],"compared.":[75],"According":[76],"to":[77],"non-linear":[79],"property":[80],"aperture,":[84],"Back":[86],"projection":[87],"algorithm":[88],"chosen":[90],"image":[92],"formation.":[93],"At":[94],"last":[95],"simulation":[97],"results":[98],"validate":[99],"that":[100],"has":[102],"a":[103,113],"good":[104],"effect":[105],"L-Band":[108],"with":[112],"azimuth":[114],"resolution":[115],"around":[116],"2m.":[117]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2017,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}