{"id":"https://openalex.org/W2315851303","doi":"https://doi.org/10.1109/jstars.2014.2320155","title":"Filtering of Azimuth Ambiguity in Stripmap Synthetic Aperture Radar Images","display_name":"Filtering of Azimuth Ambiguity in Stripmap Synthetic Aperture Radar Images","publication_year":2014,"publication_date":"2014-05-16","ids":{"openalex":"https://openalex.org/W2315851303","doi":"https://doi.org/10.1109/jstars.2014.2320155","mag":"2315851303"},"language":"en","primary_location":{"id":"doi:10.1109/jstars.2014.2320155","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jstars.2014.2320155","pdf_url":null,"source":{"id":"https://openalex.org/S117727964","display_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","issn_l":"1939-1404","issn":["1939-1404","2151-1535"],"is_oa":false,"is_in_doaj":true,"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 Journal of Selected Topics in Applied Earth Observations and Remote Sensing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"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/A5045597685","display_name":"Gerardo Di Martino","orcid":"https://orcid.org/0000-0003-4200-2584"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Gerardo Di Martino","raw_affiliation_strings":["Dipartimento di Ingegneria Elettrica e delle Tecnologie dell\u2019Informazione, Universit\u00e0 di Napoli Federico II, Napoli, Italy","Dipartimento di Ingegneria Elettrica e delle Tecnologie dell'Informazione, Universit\u00e0 di Napoli Federico II, Napoli, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dipartimento di Ingegneria Elettrica e delle Tecnologie dell\u2019Informazione, Universit\u00e0 di Napoli Federico II, Napoli, Italy","institution_ids":[]},{"raw_affiliation_string":"Dipartimento di Ingegneria Elettrica e delle Tecnologie dell'Informazione, Universit\u00e0 di Napoli Federico II, Napoli, Italy","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085352884","display_name":"Antonio Iodice","orcid":"https://orcid.org/0000-0001-6173-3601"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Antonio Iodice","raw_affiliation_strings":["Dipartimento di Ingegneria Elettrica e delle Tecnologie dell\u2019Informazione, Universit\u00e0 di Napoli Federico II, Napoli, Italy","Dipartimento di Ingegneria Elettrica e delle Tecnologie dell'Informazione, Universit\u00e0 di Napoli Federico II, Napoli, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dipartimento di Ingegneria Elettrica e delle Tecnologie dell\u2019Informazione, Universit\u00e0 di Napoli Federico II, Napoli, Italy","institution_ids":[]},{"raw_affiliation_string":"Dipartimento di Ingegneria Elettrica e delle Tecnologie dell'Informazione, Universit\u00e0 di Napoli Federico II, Napoli, Italy","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056583898","display_name":"Daniele Riccio","orcid":"https://orcid.org/0000-0001-5299-1692"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Daniele Riccio","raw_affiliation_strings":["Dipartimento di Ingegneria Elettrica e delle Tecnologie dell\u2019Informazione, Universit\u00e0 di Napoli Federico II, Napoli, Italy","Dipartimento di Ingegneria Elettrica e delle Tecnologie dell'Informazione, Universit\u00e0 di Napoli Federico II, Napoli, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dipartimento di Ingegneria Elettrica e delle Tecnologie dell\u2019Informazione, Universit\u00e0 di Napoli Federico II, Napoli, Italy","institution_ids":[]},{"raw_affiliation_string":"Dipartimento di Ingegneria Elettrica e delle Tecnologie dell'Informazione, Universit\u00e0 di Napoli Federico II, Napoli, Italy","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5040866115","display_name":"Giuseppe Ruello","orcid":"https://orcid.org/0000-0002-0322-0880"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Giuseppe Ruello","raw_affiliation_strings":["Dipartimento di Ingegneria Elettrica e delle Tecnologie dell\u2019Informazione, Universit\u00e0 di Napoli Federico II, Napoli, Italy","Dipartimento di Ingegneria Elettrica e delle Tecnologie dell'Informazione, Universit\u00e0 di Napoli Federico II, Napoli, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dipartimento di Ingegneria Elettrica e delle Tecnologie dell\u2019Informazione, Universit\u00e0 di Napoli Federico II, Napoli, Italy","institution_ids":[]},{"raw_affiliation_string":"Dipartimento di Ingegneria Elettrica e delle Tecnologie dell'Informazione, Universit\u00e0 di Napoli Federico II, Napoli, Italy","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":1250,"currency":"USD","value_usd":1250},"apc_paid":null,"fwci":173.8404,"has_fulltext":false,"cited_by_count":66,"citation_normalized_percentile":{"value":0.9991296,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":"7","issue":"9","first_page":"3967","last_page":"3978"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and 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/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and 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/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/T11698","display_name":"Underwater Acoustics Research","score":0.996999979019165,"subfield":{"id":"https://openalex.org/subfields/1910","display_name":"Oceanography"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"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":0.8434022665023804},{"id":"https://openalex.org/keywords/azimuth","display_name":"Azimuth","score":0.8397707939147949},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7603676915168762},{"id":"https://openalex.org/keywords/ambiguity","display_name":"Ambiguity","score":0.6385929584503174},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.6082634925842285},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.5898711681365967},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5582124590873718},{"id":"https://openalex.org/keywords/pulse-repetition-frequency","display_name":"Pulse repetition frequency","score":0.5154500603675842},{"id":"https://openalex.org/keywords/inverse-synthetic-aperture-radar","display_name":"Inverse synthetic aperture radar","score":0.47396156191825867},{"id":"https://openalex.org/keywords/side-looking-airborne-radar","display_name":"Side looking airborne radar","score":0.461978554725647},{"id":"https://openalex.org/keywords/radar-imaging","display_name":"Radar imaging","score":0.44465357065200806},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.38319987058639526},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.33875101804733276},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.24700596928596497},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.23645269870758057},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.16719156503677368},{"id":"https://openalex.org/keywords/radar-engineering-details","display_name":"Radar engineering details","score":0.15692490339279175},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.13478612899780273}],"concepts":[{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.8434022665023804},{"id":"https://openalex.org/C159737794","wikidata":"https://www.wikidata.org/wiki/Q124274","display_name":"Azimuth","level":2,"score":0.8397707939147949},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7603676915168762},{"id":"https://openalex.org/C2780522230","wikidata":"https://www.wikidata.org/wiki/Q1140419","display_name":"Ambiguity","level":2,"score":0.6385929584503174},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.6082634925842285},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.5898711681365967},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5582124590873718},{"id":"https://openalex.org/C182862853","wikidata":"https://www.wikidata.org/wiki/Q575887","display_name":"Pulse repetition frequency","level":3,"score":0.5154500603675842},{"id":"https://openalex.org/C109094680","wikidata":"https://www.wikidata.org/wiki/Q6060432","display_name":"Inverse synthetic aperture radar","level":4,"score":0.47396156191825867},{"id":"https://openalex.org/C62282787","wikidata":"https://www.wikidata.org/wiki/Q831483","display_name":"Side looking airborne radar","level":5,"score":0.461978554725647},{"id":"https://openalex.org/C10929652","wikidata":"https://www.wikidata.org/wiki/Q7279985","display_name":"Radar imaging","level":3,"score":0.44465357065200806},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.38319987058639526},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.33875101804733276},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.24700596928596497},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.23645269870758057},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.16719156503677368},{"id":"https://openalex.org/C134406370","wikidata":"https://www.wikidata.org/wiki/Q832005","display_name":"Radar engineering details","level":4,"score":0.15692490339279175},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.13478612899780273},{"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/jstars.2014.2320155","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jstars.2014.2320155","pdf_url":null,"source":{"id":"https://openalex.org/S117727964","display_name":"IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing","issn_l":"1939-1404","issn":["1939-1404","2151-1535"],"is_oa":false,"is_in_doaj":true,"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 Journal of Selected Topics in Applied Earth Observations and Remote Sensing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8799999952316284,"id":"https://metadata.un.org/sdg/14","display_name":"Life below water"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W1566144858","https://openalex.org/W1597712272","https://openalex.org/W1974667793","https://openalex.org/W1983439341","https://openalex.org/W2040151245","https://openalex.org/W2046245205","https://openalex.org/W2048518821","https://openalex.org/W2061438449","https://openalex.org/W2070939670","https://openalex.org/W2096003637","https://openalex.org/W2120066054","https://openalex.org/W2126184250"],"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":{"Due":[0],"to":[1,29,44,117,121,139,159],"the":[2,6,33,39,45,53,63,74,98,109,125,129,132,144,152,167,171,179,182],"specific":[3],"characteristics":[4],"of":[5,36,47,52,62,76,100,124,143,181,217],"SAR":[7,14,81,215],"system,":[8],"peculiar":[9],"artifacts":[10],"can":[11,189],"appear":[12],"on":[13,38,79,97,104,211],"images.":[15],"In":[16,66,108,151],"particular,":[17],"finite":[18],"pulse":[19],"repetition":[20],"frequency":[21],"(PRF)":[22],"and":[23,88,103,128,134,199,213],"nonideal":[24],"antenna":[25,54,126],"pattern":[26],"give":[27],"rise":[28],"azimuth":[30,77],"ambiguity,":[31],"with":[32],"possible":[34],"presence":[35],"\u201cghosts\u201d":[37],"image.":[40],"They":[41],"are":[42,115,137,157,173],"due":[43,120],"replica":[46],"strong":[48],"targets":[49],"located":[50],"outside":[51],"main":[55],"beam,":[56],"superposed":[57],"onto":[58],"low":[59],"intensity":[60],"areas":[61,146,168],"imaged":[64],"scene.":[65],"this":[67],"paper,":[68],"we":[69,84],"propose":[70],"a":[71,105,161,202],"method":[72,188],"for":[73,148],"filtering":[75,102],"ambiguities":[78,119,172],"stripmap":[80],"images,":[82],"that":[83],"name":[85],"\u201casymmetric":[86],"mapping":[87],"selective":[89,101],"filtering\u201d":[90],"(AM&SF)":[91],"method.":[92],"Our":[93],"framework":[94,207],"is":[95,208],"based":[96],"theory":[99],"two-step":[106],"procedure.":[107],"first":[110],"step,":[111,154],"two":[112,141,183],"asymmetric":[113],"filters":[114],"used":[116,138,158],"suppress":[118],"each":[122,149],"sidelobe":[123],"pattern,":[127],"ratios":[130],"between":[131],"original":[133],"filtered":[135,177],"images":[136,216],"produce":[140,160],"maps":[142,156],"ambiguity-affected":[145],"(one":[147],"sidelobe).":[150],"second":[153],"these":[155],"final":[162],"image":[163],"in":[164,192,194],"which":[165,195],"only":[166],"affected":[169],"by":[170,175],"replaced":[174],"their":[176],"(via":[178],"proper":[180],"filters)":[184],"versions.":[185],"The":[186,206],"proposed":[187],"be":[190],"employed":[191],"situations":[193],"similar":[196],"approaches":[197],"fail,":[198],"it":[200],"has":[201],"smaller":[203],"computational":[204],"burden.":[205],"positively":[209],"tested":[210],"TerraSAR-X":[212],"COSMO/SkyMed":[214],"different":[218],"marine":[219],"scenes.":[220]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":4},{"year":2024,"cited_by_count":7},{"year":2023,"cited_by_count":5},{"year":2022,"cited_by_count":7},{"year":2021,"cited_by_count":6},{"year":2020,"cited_by_count":5},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":6},{"year":2017,"cited_by_count":8},{"year":2016,"cited_by_count":7},{"year":2015,"cited_by_count":5},{"year":2014,"cited_by_count":2}],"updated_date":"2026-07-23T08:03:31.855105","created_date":"2025-10-10T00:00:00"}