{"id":"https://openalex.org/W2107111248","doi":"https://doi.org/10.1109/lgrs.2008.2000971","title":"The Polar Format Imaging Algorithm Based on Double Chirp-Z Transforms","display_name":"The Polar Format Imaging Algorithm Based on Double Chirp-Z Transforms","publication_year":2008,"publication_date":"2008-10-01","ids":{"openalex":"https://openalex.org/W2107111248","doi":"https://doi.org/10.1109/lgrs.2008.2000971","mag":"2107111248"},"language":"en","primary_location":{"id":"doi:10.1109/lgrs.2008.2000971","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lgrs.2008.2000971","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/A5041959417","display_name":"Yu Tang","orcid":"https://orcid.org/0000-0002-7604-155X"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Yu Tang","raw_affiliation_strings":["National Laboratory of Radar Signal Processing, Xidian University, Xi'an, China"],"affiliations":[{"raw_affiliation_string":"National Laboratory of Radar Signal Processing, Xidian University, Xi'an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021408538","display_name":"Mengdao Xing","orcid":"https://orcid.org/0000-0002-4084-0915"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Meng-Dao Xing","raw_affiliation_strings":["Key Laboratory for Radar Signal Processing, Xidian University, Xi'an, China"],"affiliations":[{"raw_affiliation_string":"Key Laboratory for Radar Signal Processing, Xidian University, Xi'an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5102927094","display_name":"Zheng Bao","orcid":"https://orcid.org/0000-0002-7348-7644"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zheng Bao","raw_affiliation_strings":["Key Laboratory for Radar Signal Processing, Xidian University, Xi'an, China"],"affiliations":[{"raw_affiliation_string":"Key Laboratory for Radar Signal Processing, Xidian University, Xi'an, China","institution_ids":["https://openalex.org/I149594827"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5041959417"],"corresponding_institution_ids":["https://openalex.org/I149594827"],"apc_list":null,"apc_paid":null,"fwci":8.2309,"has_fulltext":false,"cited_by_count":43,"citation_normalized_percentile":{"value":0.96961732,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"5","issue":"4","first_page":"610","last_page":"614"},"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/T10891","display_name":"Radar Systems and Signal Processing","score":0.9959999918937683,"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/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.7695997953414917},{"id":"https://openalex.org/keywords/azimuth","display_name":"Azimuth","score":0.7463206052780151},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7426745891571045},{"id":"https://openalex.org/keywords/interpolation","display_name":"Interpolation (computer graphics)","score":0.7204493284225464},{"id":"https://openalex.org/keywords/chirp","display_name":"Chirp","score":0.6569379568099976},{"id":"https://openalex.org/keywords/inverse-synthetic-aperture-radar","display_name":"Inverse synthetic aperture radar","score":0.6046239733695984},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5479129552841187},{"id":"https://openalex.org/keywords/radar-imaging","display_name":"Radar imaging","score":0.5312744379043579},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.48030561208724976},{"id":"https://openalex.org/keywords/microwave-imaging","display_name":"Microwave imaging","score":0.45087358355522156},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.4418221116065979},{"id":"https://openalex.org/keywords/image-resolution","display_name":"Image resolution","score":0.4368916153907776},{"id":"https://openalex.org/keywords/side-looking-airborne-radar","display_name":"Side looking airborne radar","score":0.43682873249053955},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.3555845320224762},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3506180942058563},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.3247314691543579},{"id":"https://openalex.org/keywords/bistatic-radar","display_name":"Bistatic radar","score":0.2703329026699066},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.23973119258880615},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2371426522731781},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.18423545360565186},{"id":"https://openalex.org/keywords/microwave","display_name":"Microwave","score":0.11770546436309814},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.10486793518066406}],"concepts":[{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.7695997953414917},{"id":"https://openalex.org/C159737794","wikidata":"https://www.wikidata.org/wiki/Q124274","display_name":"Azimuth","level":2,"score":0.7463206052780151},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7426745891571045},{"id":"https://openalex.org/C137800194","wikidata":"https://www.wikidata.org/wiki/Q11713455","display_name":"Interpolation (computer graphics)","level":3,"score":0.7204493284225464},{"id":"https://openalex.org/C132794960","wikidata":"https://www.wikidata.org/wiki/Q27304","display_name":"Chirp","level":3,"score":0.6569379568099976},{"id":"https://openalex.org/C109094680","wikidata":"https://www.wikidata.org/wiki/Q6060432","display_name":"Inverse synthetic aperture radar","level":4,"score":0.6046239733695984},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5479129552841187},{"id":"https://openalex.org/C10929652","wikidata":"https://www.wikidata.org/wiki/Q7279985","display_name":"Radar imaging","level":3,"score":0.5312744379043579},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.48030561208724976},{"id":"https://openalex.org/C2779885931","wikidata":"https://www.wikidata.org/wiki/Q17010029","display_name":"Microwave imaging","level":3,"score":0.45087358355522156},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.4418221116065979},{"id":"https://openalex.org/C205372480","wikidata":"https://www.wikidata.org/wiki/Q210521","display_name":"Image resolution","level":2,"score":0.4368916153907776},{"id":"https://openalex.org/C62282787","wikidata":"https://www.wikidata.org/wiki/Q831483","display_name":"Side looking airborne radar","level":5,"score":0.43682873249053955},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.3555845320224762},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3506180942058563},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.3247314691543579},{"id":"https://openalex.org/C100102862","wikidata":"https://www.wikidata.org/wiki/Q2625855","display_name":"Bistatic radar","level":4,"score":0.2703329026699066},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.23973119258880615},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2371426522731781},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.18423545360565186},{"id":"https://openalex.org/C44838205","wikidata":"https://www.wikidata.org/wiki/Q127995","display_name":"Microwave","level":2,"score":0.11770546436309814},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.10486793518066406},{"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/lgrs.2008.2000971","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lgrs.2008.2000971","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":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W599284720","https://openalex.org/W1510539975","https://openalex.org/W1527747735","https://openalex.org/W1536938919","https://openalex.org/W2101211288","https://openalex.org/W2125856058","https://openalex.org/W2132416598","https://openalex.org/W2146065092","https://openalex.org/W3145175200","https://openalex.org/W4250158795"],"related_works":["https://openalex.org/W2112228652","https://openalex.org/W1994788526","https://openalex.org/W2108352898","https://openalex.org/W1915418828","https://openalex.org/W2108697546","https://openalex.org/W2547107543","https://openalex.org/W2383271330","https://openalex.org/W4281769129","https://openalex.org/W2031673444","https://openalex.org/W2758958237"],"abstract_inverted_index":{"Spotlight":[0],"mode":[1,11],"offers":[2],"finer":[3],"azimuth":[4,41],"resolution":[5],"than":[6],"that":[7],"achievable":[8],"in":[9,48],"stripmap":[10],"using":[12],"the":[13,28,51,55,83,86,91,96],"same":[14],"physical":[15],"antenna.":[16],"The":[17],"most":[18],"popular":[19],"spotlight":[20],"synthetic":[21],"aperture":[22],"radar":[23],"(SAR)":[24],"reconstruction":[25],"method":[26],"is":[27],"classic":[29],"polar":[30,65],"format":[31,66],"algorithm":[32],"(PFA).":[33],"However,":[34],"PFA":[35,97],"needs":[36],"to":[37],"perform":[38],"range":[39],"and":[40,54,85,89],"interpolation":[42,71],"operations":[43,72],"during":[44],"SAR":[45],"imaging,":[46],"which,":[47],"turn,":[49],"affect":[50],"imaging":[52],"precision":[53],"computation":[56],"efficiency.":[57],"In":[58,77],"this":[59,78],"letter,":[60,79],"we":[61,80],"present":[62],"a":[63],"novel":[64],"algorithm,":[67],"which":[68],"may":[69],"avoid":[70],"by":[73],"double":[74],"chirp-Z":[75],"transform.":[76],"also":[81],"analyze":[82],"nondefocus":[84],"nondistortion":[87],"constraints":[88],"discuss":[90],"along-track":[92],"acceleration":[93],"constraint":[94],"for":[95],"as":[98],"well.":[99]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":8},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":3},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":3},{"year":2013,"cited_by_count":4},{"year":2012,"cited_by_count":4}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}