{"id":"https://openalex.org/W2120109624","doi":"https://doi.org/10.1109/igarss.2011.6050026","title":"Processing of Circular SAR trajectories with Fast Factorized Back-Projection","display_name":"Processing of Circular SAR trajectories with Fast Factorized Back-Projection","publication_year":2011,"publication_date":"2011-07-01","ids":{"openalex":"https://openalex.org/W2120109624","doi":"https://doi.org/10.1109/igarss.2011.6050026","mag":"2120109624"},"language":"en","primary_location":{"id":"doi:10.1109/igarss.2011.6050026","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2011.6050026","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 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/A5021555589","display_name":"Octavio Ponce","orcid":"https://orcid.org/0000-0001-8216-6917"},"institutions":[{"id":"https://openalex.org/I2898391981","display_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","ror":"https://ror.org/04bwf3e34","country_code":"DE","type":"facility","lineage":["https://openalex.org/I1305996414","https://openalex.org/I2898391981"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Octavio Ponce","raw_affiliation_strings":["Microwave and Radar Institute, German AeroSpace Center (DLR), Wessling, Germany","[German Aerospace Center (DLR), Microwave and Radar Institute, P.O. Box 116, D-82234 Wessling, Germany]"],"affiliations":[{"raw_affiliation_string":"Microwave and Radar Institute, German AeroSpace Center (DLR), Wessling, Germany","institution_ids":["https://openalex.org/I2898391981"]},{"raw_affiliation_string":"[German Aerospace Center (DLR), Microwave and Radar Institute, P.O. Box 116, D-82234 Wessling, Germany]","institution_ids":["https://openalex.org/I2898391981"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5091685846","display_name":"Pau Prats","orcid":"https://orcid.org/0000-0002-7583-2309"},"institutions":[{"id":"https://openalex.org/I2898391981","display_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","ror":"https://ror.org/04bwf3e34","country_code":"DE","type":"facility","lineage":["https://openalex.org/I1305996414","https://openalex.org/I2898391981"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Pau Prats","raw_affiliation_strings":["Microwave and Radar Institute, German AeroSpace Center (DLR), Wessling, Germany","[German Aerospace Center (DLR), Microwave and Radar Institute, P.O. Box 116, D-82234 Wessling, Germany]"],"affiliations":[{"raw_affiliation_string":"Microwave and Radar Institute, German AeroSpace Center (DLR), Wessling, Germany","institution_ids":["https://openalex.org/I2898391981"]},{"raw_affiliation_string":"[German Aerospace Center (DLR), Microwave and Radar Institute, P.O. Box 116, D-82234 Wessling, Germany]","institution_ids":["https://openalex.org/I2898391981"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026715371","display_name":"Marc Rodr\u00edguez-Cassol\u00e0","orcid":null},"institutions":[{"id":"https://openalex.org/I2898391981","display_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","ror":"https://ror.org/04bwf3e34","country_code":"DE","type":"facility","lineage":["https://openalex.org/I1305996414","https://openalex.org/I2898391981"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Marc Rodriguez-Cassola","raw_affiliation_strings":["Microwave and Radar Institute, German AeroSpace Center (DLR), Wessling, Germany","[German Aerospace Center (DLR), Microwave and Radar Institute, P.O. Box 116, D-82234 Wessling, Germany]"],"affiliations":[{"raw_affiliation_string":"Microwave and Radar Institute, German AeroSpace Center (DLR), Wessling, Germany","institution_ids":["https://openalex.org/I2898391981"]},{"raw_affiliation_string":"[German Aerospace Center (DLR), Microwave and Radar Institute, P.O. Box 116, D-82234 Wessling, Germany]","institution_ids":["https://openalex.org/I2898391981"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080643217","display_name":"Rolf Scheiber","orcid":"https://orcid.org/0000-0002-6833-4897"},"institutions":[{"id":"https://openalex.org/I2898391981","display_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","ror":"https://ror.org/04bwf3e34","country_code":"DE","type":"facility","lineage":["https://openalex.org/I1305996414","https://openalex.org/I2898391981"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Rolf Scheiber","raw_affiliation_strings":["Microwave and Radar Institute, German AeroSpace Center (DLR), Wessling, Germany","[German Aerospace Center (DLR), Microwave and Radar Institute, P.O. Box 116, D-82234 Wessling, Germany]"],"affiliations":[{"raw_affiliation_string":"Microwave and Radar Institute, German AeroSpace Center (DLR), Wessling, Germany","institution_ids":["https://openalex.org/I2898391981"]},{"raw_affiliation_string":"[German Aerospace Center (DLR), Microwave and Radar Institute, P.O. Box 116, D-82234 Wessling, Germany]","institution_ids":["https://openalex.org/I2898391981"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5067687509","display_name":"Andreas Reigber","orcid":"https://orcid.org/0000-0002-2118-5046"},"institutions":[{"id":"https://openalex.org/I2898391981","display_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","ror":"https://ror.org/04bwf3e34","country_code":"DE","type":"facility","lineage":["https://openalex.org/I1305996414","https://openalex.org/I2898391981"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Andreas Reigber","raw_affiliation_strings":["Microwave and Radar Institute, German AeroSpace Center (DLR), Wessling, Germany","[German Aerospace Center (DLR), Microwave and Radar Institute, P.O. Box 116, D-82234 Wessling, Germany]"],"affiliations":[{"raw_affiliation_string":"Microwave and Radar Institute, German AeroSpace Center (DLR), Wessling, Germany","institution_ids":["https://openalex.org/I2898391981"]},{"raw_affiliation_string":"[German Aerospace Center (DLR), Microwave and Radar Institute, P.O. Box 116, D-82234 Wessling, Germany]","institution_ids":["https://openalex.org/I2898391981"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5021555589"],"corresponding_institution_ids":["https://openalex.org/I2898391981"],"apc_list":null,"apc_paid":null,"fwci":86.4029,"has_fulltext":false,"cited_by_count":84,"citation_normalized_percentile":{"value":0.99741094,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"3692","last_page":"3695"},"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":0.9997000098228455,"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/T12450","display_name":"Radio Astronomy Observations and Technology","score":0.9922000169754028,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/azimuth","display_name":"Azimuth","score":0.7475887537002563},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.711321234703064},{"id":"https://openalex.org/keywords/graphics-processing-unit","display_name":"Graphics processing unit","score":0.6140688061714172},{"id":"https://openalex.org/keywords/projection","display_name":"Projection (relational algebra)","score":0.5239232182502747},{"id":"https://openalex.org/keywords/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.5032057166099548},{"id":"https://openalex.org/keywords/graphics","display_name":"Graphics","score":0.47177863121032715},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3968632221221924},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.39439231157302856},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.38837379217147827},{"id":"https://openalex.org/keywords/computer-graphics","display_name":"Computer graphics (images)","score":0.2740006446838379},{"id":"https://openalex.org/keywords/parallel-computing","display_name":"Parallel computing","score":0.15929362177848816},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1532832384109497},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.13171157240867615}],"concepts":[{"id":"https://openalex.org/C159737794","wikidata":"https://www.wikidata.org/wiki/Q124274","display_name":"Azimuth","level":2,"score":0.7475887537002563},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.711321234703064},{"id":"https://openalex.org/C2779851693","wikidata":"https://www.wikidata.org/wiki/Q183484","display_name":"Graphics processing unit","level":2,"score":0.6140688061714172},{"id":"https://openalex.org/C57493831","wikidata":"https://www.wikidata.org/wiki/Q3134666","display_name":"Projection (relational algebra)","level":2,"score":0.5239232182502747},{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.5032057166099548},{"id":"https://openalex.org/C21442007","wikidata":"https://www.wikidata.org/wiki/Q1027879","display_name":"Graphics","level":2,"score":0.47177863121032715},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3968632221221924},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.39439231157302856},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.38837379217147827},{"id":"https://openalex.org/C121684516","wikidata":"https://www.wikidata.org/wiki/Q7600677","display_name":"Computer graphics (images)","level":1,"score":0.2740006446838379},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.15929362177848816},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1532832384109497},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.13171157240867615}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/igarss.2011.6050026","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss.2011.6050026","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE International Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"},{"id":"pmh:oai:elib.dlr.de:70118","is_oa":false,"landing_page_url":"https://elib.dlr.de/70118/","pdf_url":null,"source":{"id":"https://openalex.org/S4377196266","display_name":"elib (German Aerospace Center)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I2898391981","host_organization_name":"Deutsches Zentrum f\u00fcr Luft- und Raumfahrt e. V. (DLR)","host_organization_lineage":["https://openalex.org/I2898391981"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Konferenzbeitrag"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":4,"referenced_works":["https://openalex.org/W347947609","https://openalex.org/W599284720","https://openalex.org/W2096410667","https://openalex.org/W2138863700"],"related_works":["https://openalex.org/W3006474185","https://openalex.org/W2483195039","https://openalex.org/W2281797687","https://openalex.org/W2358411735","https://openalex.org/W2048211457","https://openalex.org/W4250650723","https://openalex.org/W2068843146","https://openalex.org/W2462749609","https://openalex.org/W2158834404","https://openalex.org/W2220968517"],"abstract_inverted_index":{"This":[0],"paper":[1],"describes":[2],"the":[3,35,47,54,62,64,77,81,90,97,106,113,119,127],"implementation":[4,8],"of":[5,9,80,89,92,109,118,129],"an":[6],"efficient":[7],"a":[10,71,85],"Fast":[11],"Factorized":[12],"Back":[13,56],"Projection":[14,57],"(FFBP)":[15],"algorithm":[16],"for":[17,22],"Circular":[18],"SAR":[19],"(CSAR)":[20],"trajectories":[21],"real":[23],"air-":[24],"borne":[25],"data.":[26],"Unlike":[27],"Fourier-domain":[28],"based":[29],"focusing":[30,132],"processors,":[31],"this":[32,103],"approach":[33],"considers":[34],"azimuth":[36],"variance":[37],"and":[38,116],"topography":[39],"changes":[40],"with":[41,53,102],"high":[42],"accuracy,":[43],"while":[44],"improving":[45],"significantly":[46],"computational":[48],"time":[49],"factor":[50],"in":[51],"comparison":[52],"direct":[55],"(BP).":[58],"To":[59],"further":[60],"accelerate":[61],"focusing,":[63],"circular":[65,120],"FFBP":[66,121],"was":[67],"implemented":[68],"also":[69],"on":[70],"Graphics":[72],"Processor":[73],"Unit":[74],"(GPU).":[75],"In":[76],"second":[78],"part":[79],"document":[82],"is":[83,122],"shown":[84],"fully":[86],"polarimetric":[87],"image":[88],"region":[91],"Kaufbeuren,":[93],"Germany,":[94],"(acquired":[95],"by":[96],"DLR's":[98],"E-SAR":[99],"system)":[100],"focused":[101],"method":[104],"to":[105],"theoretical":[107],"limit":[108],"~\u03bb/4":[110],"j.":[111],"Thus,":[112],"efficiency,":[114],"accuracy":[115],"performance":[117],"demonstrated,":[123],"as":[124,126],"well":[125],"potential":[128],"CSAR":[130],"when":[131],"over":[133],"360":[134],"\u00b0.":[135]},"counts_by_year":[{"year":2025,"cited_by_count":10},{"year":2024,"cited_by_count":7},{"year":2023,"cited_by_count":8},{"year":2022,"cited_by_count":8},{"year":2021,"cited_by_count":6},{"year":2020,"cited_by_count":5},{"year":2019,"cited_by_count":6},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":5},{"year":2016,"cited_by_count":10},{"year":2015,"cited_by_count":6},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":5},{"year":2012,"cited_by_count":4}],"updated_date":"2026-03-05T07:30:30.508283","created_date":"2025-10-10T00:00:00"}
