{"id":"https://openalex.org/W2128159103","doi":"https://doi.org/10.1109/lgrs.2011.2168380","title":"Omega-K Algorithm for Spaceborne Spotlight SAR Imaging","display_name":"Omega-K Algorithm for Spaceborne Spotlight SAR Imaging","publication_year":2011,"publication_date":"2011-10-24","ids":{"openalex":"https://openalex.org/W2128159103","doi":"https://doi.org/10.1109/lgrs.2011.2168380","mag":"2128159103"},"language":"en","primary_location":{"id":"doi:10.1109/lgrs.2011.2168380","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lgrs.2011.2168380","pdf_url":null,"source":{"id":"https://openalex.org/S126920919","display_name":"IEEE Geoscience and Remote Sensing Letters","issn_l":"1545-598X","issn":["1545-598X","1558-0571"],"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 Geoscience and Remote Sensing Letters","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/A5083469302","display_name":"Hee-Sub Shin","orcid":"https://orcid.org/0000-0003-4777-2553"},"institutions":[{"id":"https://openalex.org/I283854653","display_name":"Machine Intelligence Research Institute","ror":"https://ror.org/01h4ass90","country_code":"US","type":"nonprofit","lineage":["https://openalex.org/I283854653"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Hee-Sub Shin","raw_affiliation_strings":["Intelligence, Surveillance, and Reconnaissance Research Center, Yongin si, South Korea","Intell., Surveillance & Reconnaissance Res. Center, Yongin, South Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Intelligence, Surveillance, and Reconnaissance Research Center, Yongin si, South Korea","institution_ids":["https://openalex.org/I283854653"]},{"raw_affiliation_string":"Intell., Surveillance & Reconnaissance Res. Center, Yongin, South Korea","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5102326444","display_name":"Jong\u2010Tae Lim","orcid":null},"institutions":[{"id":"https://openalex.org/I157485424","display_name":"Korea Advanced Institute of Science and Technology","ror":"https://ror.org/05apxxy63","country_code":"KR","type":"education","lineage":["https://openalex.org/I157485424"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jong-Tae Lim","raw_affiliation_strings":["Department of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology, Daejeon, South Korea","Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol. Daejeon, South Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology, Daejeon, South Korea","institution_ids":["https://openalex.org/I157485424"]},{"raw_affiliation_string":"Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol. Daejeon, South Korea","institution_ids":["https://openalex.org/I157485424"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":48.7901,"has_fulltext":false,"cited_by_count":27,"citation_normalized_percentile":{"value":0.99465263,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"9","issue":"3","first_page":"343","last_page":"347"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11038","display_name":"Advanced SAR Imaging Techniques","score":0.9998999834060669,"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":0.9998999834060669,"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/T11609","display_name":"Geophysical Methods and Applications","score":0.9973999857902527,"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/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.7628000974655151},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.6156859993934631},{"id":"https://openalex.org/keywords/interpolation","display_name":"Interpolation (computer graphics)","score":0.5366954207420349},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5196429491043091},{"id":"https://openalex.org/keywords/chirp","display_name":"Chirp","score":0.5077951550483704},{"id":"https://openalex.org/keywords/path","display_name":"Path (computing)","score":0.505638599395752},{"id":"https://openalex.org/keywords/interferometric-synthetic-aperture-radar","display_name":"Interferometric synthetic aperture radar","score":0.4141693115234375},{"id":"https://openalex.org/keywords/phase","display_name":"Phase (matter)","score":0.41095274686813354},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.36535605788230896},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.33698317408561707},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.3055380582809448},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.16405174136161804},{"id":"https://openalex.org/keywords/laser","display_name":"Laser","score":0.10908576846122742}],"concepts":[{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.7628000974655151},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.6156859993934631},{"id":"https://openalex.org/C137800194","wikidata":"https://www.wikidata.org/wiki/Q11713455","display_name":"Interpolation (computer graphics)","level":3,"score":0.5366954207420349},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5196429491043091},{"id":"https://openalex.org/C132794960","wikidata":"https://www.wikidata.org/wiki/Q27304","display_name":"Chirp","level":3,"score":0.5077951550483704},{"id":"https://openalex.org/C2777735758","wikidata":"https://www.wikidata.org/wiki/Q817765","display_name":"Path (computing)","level":2,"score":0.505638599395752},{"id":"https://openalex.org/C22286887","wikidata":"https://www.wikidata.org/wiki/Q1666056","display_name":"Interferometric synthetic aperture radar","level":3,"score":0.4141693115234375},{"id":"https://openalex.org/C44280652","wikidata":"https://www.wikidata.org/wiki/Q104837","display_name":"Phase (matter)","level":2,"score":0.41095274686813354},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.36535605788230896},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.33698317408561707},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.3055380582809448},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.16405174136161804},{"id":"https://openalex.org/C520434653","wikidata":"https://www.wikidata.org/wiki/Q38867","display_name":"Laser","level":2,"score":0.10908576846122742},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lgrs.2011.2168380","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lgrs.2011.2168380","pdf_url":null,"source":{"id":"https://openalex.org/S126920919","display_name":"IEEE Geoscience and Remote Sensing Letters","issn_l":"1545-598X","issn":["1545-598X","1558-0571"],"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 Geoscience and Remote Sensing Letters","raw_type":"journal-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/W599284720","https://openalex.org/W1527747735","https://openalex.org/W2004483503","https://openalex.org/W2054700682","https://openalex.org/W2069804467","https://openalex.org/W2073281904","https://openalex.org/W2146956859","https://openalex.org/W2147332078"],"related_works":["https://openalex.org/W2373310320","https://openalex.org/W2781934594","https://openalex.org/W4384163768","https://openalex.org/W2790032735","https://openalex.org/W4385499758","https://openalex.org/W3206958763","https://openalex.org/W2010341259","https://openalex.org/W2159160885","https://openalex.org/W2148958581","https://openalex.org/W2910315605"],"abstract_inverted_index":{"Since":[0],"the":[1,9,14,19,25,30,35,40,46,54,60,64,69,72,75,79,85,90,96,99,104,109,113],"spaceborne":[2],"spotlight":[3],"synthetic":[4],"aperture":[5],"radar":[6],"(SAR)":[7],"has":[8],"long":[10,36],"slant":[11],"range":[12],"and":[13,29,71,78,89],"high":[15,50],"altitude,":[16],"it":[17],"generates":[18],"curved":[20,61],"flight":[21],"path":[22,62,66,77],"due":[23,33],"to":[24,34,44],"orbit":[26],"curvature":[27],"effect":[28],"time":[31,38],"delay":[32],"round-trip":[37],"of":[39,74,98,112],"chirp":[41],"pulse.":[42],"Thus,":[43],"obtain":[45],"SAR":[47],"image":[48],"with":[49],"quality,":[51],"we":[52,58,102],"extend":[53],"omega-K":[55,114],"algorithm.":[56,115],"First,":[57],"convert":[59],"into":[63],"straight-line":[65],"based":[67,94],"on":[68,95],"resampling":[70],"rotation":[73],"transmitted-pulse":[76],"received":[80],"pulse":[81],"path.":[82],"Then,":[83],"using":[84],"modified":[86,91],"matched":[87],"filter":[88],"Stolt":[92],"interpolation":[93],"principle":[97],"stationary":[100],"phase,":[101],"compensate":[103],"phase":[105],"error":[106],"induced":[107],"by":[108],"start-stop":[110],"assumption":[111]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":5},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":3},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
