{"id":"https://openalex.org/W4312463495","doi":"https://doi.org/10.1109/igarss46834.2022.9883170","title":"Modified Enlcs Method with Low Complexity for Highly Squint Sar Imaging","display_name":"Modified Enlcs Method with Low Complexity for Highly Squint Sar Imaging","publication_year":2022,"publication_date":"2022-07-17","ids":{"openalex":"https://openalex.org/W4312463495","doi":"https://doi.org/10.1109/igarss46834.2022.9883170"},"language":"en","primary_location":{"id":"doi:10.1109/igarss46834.2022.9883170","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss46834.2022.9883170","pdf_url":null,"source":{"id":"https://openalex.org/S4363604196","display_name":"IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium","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/A5100318536","display_name":"Qian Liu","orcid":"https://orcid.org/0000-0002-0148-7493"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qian Liu","raw_affiliation_strings":["University of Electronic Science and Technology of China Chengdu,Sichuan,P. R. China,611731"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Electronic Science and Technology of China Chengdu,Sichuan,P. R. China,611731","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020282170","display_name":"Feiming Wei","orcid":"https://orcid.org/0009-0008-5032-5483"},"institutions":[{"id":"https://openalex.org/I183067930","display_name":"Shanghai Jiao Tong University","ror":"https://ror.org/0220qvk04","country_code":"CN","type":"education","lineage":["https://openalex.org/I183067930"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Feiming Wei","raw_affiliation_strings":["Shanghai Jiao Tong University"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Shanghai Jiao Tong University","institution_ids":["https://openalex.org/I183067930"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058806571","display_name":"Yu Hai","orcid":"https://orcid.org/0000-0003-3381-2243"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yu Hai","raw_affiliation_strings":["University of Electronic Science and Technology of China Chengdu,Sichuan,P. R. China,611731"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Electronic Science and Technology of China Chengdu,Sichuan,P. R. China,611731","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087695608","display_name":"Junao Li","orcid":"https://orcid.org/0000-0003-1619-7779"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Junao Li","raw_affiliation_strings":["University of Electronic Science and Technology of China Chengdu,Sichuan,P. R. China,611731"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Electronic Science and Technology of China Chengdu,Sichuan,P. R. China,611731","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016297588","display_name":"Qing Yang","orcid":"https://orcid.org/0000-0003-2913-4611"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qing Yang","raw_affiliation_strings":["University of Electronic Science and Technology of China Chengdu,Sichuan,P. R. China,611731"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Electronic Science and Technology of China Chengdu,Sichuan,P. R. China,611731","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100735598","display_name":"Zhongyu Li","orcid":"https://orcid.org/0000-0002-0409-8207"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhongyu Li","raw_affiliation_strings":["University of Electronic Science and Technology of China Chengdu,Sichuan,P. R. China,611731"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Electronic Science and Technology of China Chengdu,Sichuan,P. R. China,611731","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5030746978","display_name":"Junjie Wu","orcid":"https://orcid.org/0000-0002-4922-2398"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Junjie Wu","raw_affiliation_strings":["University of Electronic Science and Technology of China Chengdu,Sichuan,P. R. China,611731"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"University of Electronic Science and Technology of China Chengdu,Sichuan,P. R. China,611731","institution_ids":["https://openalex.org/I150229711"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.24431818,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"12","issue":null,"first_page":"2514","last_page":"2517"},"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":0.9991999864578247,"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":0.9987000226974487,"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/azimuth","display_name":"Azimuth","score":0.7816351652145386},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.754965603351593},{"id":"https://openalex.org/keywords/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.6492648720741272},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.6123359203338623},{"id":"https://openalex.org/keywords/chirp","display_name":"Chirp","score":0.5960063338279724},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5347411036491394},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.5053742527961731},{"id":"https://openalex.org/keywords/distortion","display_name":"Distortion (music)","score":0.48880812525749207},{"id":"https://openalex.org/keywords/process","display_name":"Process (computing)","score":0.43722644448280334},{"id":"https://openalex.org/keywords/radar-imaging","display_name":"Radar imaging","score":0.41966909170150757},{"id":"https://openalex.org/keywords/grid","display_name":"Grid","score":0.4186709225177765},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.38300445675849915},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.36237406730651855},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.15671026706695557},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.12638503313064575},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1238328218460083},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.1023353636264801},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.09952685236930847}],"concepts":[{"id":"https://openalex.org/C159737794","wikidata":"https://www.wikidata.org/wiki/Q124274","display_name":"Azimuth","level":2,"score":0.7816351652145386},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.754965603351593},{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.6492648720741272},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.6123359203338623},{"id":"https://openalex.org/C132794960","wikidata":"https://www.wikidata.org/wiki/Q27304","display_name":"Chirp","level":3,"score":0.5960063338279724},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5347411036491394},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.5053742527961731},{"id":"https://openalex.org/C126780896","wikidata":"https://www.wikidata.org/wiki/Q899871","display_name":"Distortion (music)","level":4,"score":0.48880812525749207},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.43722644448280334},{"id":"https://openalex.org/C10929652","wikidata":"https://www.wikidata.org/wiki/Q7279985","display_name":"Radar imaging","level":3,"score":0.41966909170150757},{"id":"https://openalex.org/C187691185","wikidata":"https://www.wikidata.org/wiki/Q2020720","display_name":"Grid","level":2,"score":0.4186709225177765},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.38300445675849915},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.36237406730651855},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.15671026706695557},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.12638503313064575},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1238328218460083},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.1023353636264801},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.09952685236930847},{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C520434653","wikidata":"https://www.wikidata.org/wiki/Q38867","display_name":"Laser","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss46834.2022.9883170","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss46834.2022.9883170","pdf_url":null,"source":{"id":"https://openalex.org/S4363604196","display_name":"IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium","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":8,"referenced_works":["https://openalex.org/W2049475483","https://openalex.org/W2050881825","https://openalex.org/W2060749613","https://openalex.org/W2100123951","https://openalex.org/W2531871790","https://openalex.org/W2533557575","https://openalex.org/W3034546011","https://openalex.org/W6675098540"],"related_works":["https://openalex.org/W2068843146","https://openalex.org/W2010341259","https://openalex.org/W2462749609","https://openalex.org/W2545123933","https://openalex.org/W2585813813","https://openalex.org/W2041414401","https://openalex.org/W2042726296","https://openalex.org/W2096748030","https://openalex.org/W3016428515","https://openalex.org/W2160730947"],"abstract_inverted_index":{"In":[0],"recent":[1],"years,":[2],"many":[3,66],"imaging":[4,37,102],"algorithms":[5],"for":[6],"highly":[7,34,57],"squint":[8,35,58],"synthetic":[9],"aperture":[10],"radar":[11],"(SAR)":[12],"have":[13],"been":[14],"proposed.":[15],"An":[16],"algorithm":[17],"based":[18],"on":[19],"keystone":[20],"transform":[21],"(KT)":[22],"and":[23,49,162,185],"azimuth":[24,79],"Extended":[25],"Nonlinear":[26],"Chirp":[27],"Scaling":[28],"(ENLCS)":[29],"is":[30,168,180],"widely":[31],"used":[32],"in":[33,41,72,89,97,131,154],"SAR":[36],"processing.":[38,188],"It's":[39],"effective":[40],"solving":[42],"spatial-variant":[43],"linear":[44],"range":[45],"cell":[46],"migration":[47],"(LRCM)":[48],"azimuth-variant":[50],"Doppler":[51],"parameters.":[52],"However,":[53],"due":[54],"to":[55,82,94,142],"the":[56,60,73,78,84,90,101,125,132,144,155,171,177],"configuration,":[59],"beam":[61],"center":[62],"crossing":[63],"time":[64,151],"of":[65,176],"illuminated":[67],"targets":[68,85],"are":[69],"not":[70],"included":[71],"track.":[74],"We":[75],"need":[76],"extend":[77],"data":[80,146,159,187],"length":[81,147],"ensure":[83],"a":[86,140,150],"corresponding":[87],"position":[88],"data,":[91],"which":[92],"leads":[93],"an":[95,111],"increase":[96],"computational":[98],"complexity.":[99],"And":[100],"result":[103],"also":[104],"has":[105],"geometric":[106,166],"distortion.":[107],"This":[108],"paper":[109],"proposes":[110],"improved":[112],"ENLCS":[113,156],"method":[114,179],"with":[115,119],"lower":[116],"complexity":[117,127],"combined":[118],"fast":[120],"KT.":[121],"First,":[122],"we":[123,138],"use":[124],"low":[126],"KT":[128],"without":[129],"interpo-lation":[130],"RCM":[133],"correction":[134,167],"(RCMC)":[135],"process.":[136],"Then,":[137],"find":[139],"solution":[141],"reduce":[143],"extended":[145],"by":[148,170,182],"adding":[149],"shift":[152],"factor":[153],"process,":[157],"saving":[158],"storage":[160],"space":[161],"operation":[163],"cost.":[164],"Finally,":[165],"performed":[169],"grid":[172],"mapping.":[173],"The":[174],"effectiveness":[175],"proposed":[178],"verified":[181],"numerical":[183],"simulation":[184],"real":[186]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}