{"id":"https://openalex.org/W3207525231","doi":"https://doi.org/10.1109/igarss47720.2021.9554441","title":"Energy-Efficient Passive UAV SAR: System Concept and Performance Analysis","display_name":"Energy-Efficient Passive UAV SAR: System Concept and Performance Analysis","publication_year":2021,"publication_date":"2021-07-11","ids":{"openalex":"https://openalex.org/W3207525231","doi":"https://doi.org/10.1109/igarss47720.2021.9554441","mag":"3207525231"},"language":"en","primary_location":{"id":"doi:10.1109/igarss47720.2021.9554441","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss47720.2021.9554441","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS","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/A5034477287","display_name":"Zhichao Sun","orcid":"https://orcid.org/0000-0001-9346-4418"},"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":true,"raw_author_name":"Zhichao Sun","raw_affiliation_strings":["University of Electronic Science and Technology of China, China"],"affiliations":[{"raw_affiliation_string":"University of Electronic Science and Technology of China, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043777311","display_name":"Ying He","orcid":"https://orcid.org/0000-0002-7996-9919"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Ying He","raw_affiliation_strings":["Southwest China Research Institute of Electronic Equipment, China"],"affiliations":[{"raw_affiliation_string":"Southwest China Research Institute of Electronic Equipment, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5089261716","display_name":"Tianfu Chen","orcid":"https://orcid.org/0009-0005-4616-972X"},"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":"Tianfu Chen","raw_affiliation_strings":["University of Electronic Science and Technology of China, China"],"affiliations":[{"raw_affiliation_string":"University of Electronic Science and Technology of China, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5032659310","display_name":"Hongyang An","orcid":"https://orcid.org/0000-0002-5621-1355"},"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":"Hongyang An","raw_affiliation_strings":["University of Electronic Science and Technology of China, China"],"affiliations":[{"raw_affiliation_string":"University of Electronic Science and Technology of China, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","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, China"],"affiliations":[{"raw_affiliation_string":"University of Electronic Science and Technology of China, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100660972","display_name":"Jianyu Yang","orcid":"https://orcid.org/0000-0002-4726-8384"},"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":"Jianyu Yang","raw_affiliation_strings":["University of Electronic Science and Technology of China, China"],"affiliations":[{"raw_affiliation_string":"University of Electronic Science and Technology of China, China","institution_ids":["https://openalex.org/I150229711"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5034477287"],"corresponding_institution_ids":["https://openalex.org/I150229711"],"apc_list":null,"apc_paid":null,"fwci":2.0674,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.92664849,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"8261","last_page":"8264"},"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/T10891","display_name":"Radar Systems and Signal Processing","score":0.9988999962806702,"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":0.9984999895095825,"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/computer-science","display_name":"Computer science","score":0.7799974679946899},{"id":"https://openalex.org/keywords/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.6920729875564575},{"id":"https://openalex.org/keywords/flexibility","display_name":"Flexibility (engineering)","score":0.5559633374214172},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.5495818257331848},{"id":"https://openalex.org/keywords/gnss-applications","display_name":"GNSS applications","score":0.5193051695823669},{"id":"https://openalex.org/keywords/block-diagram","display_name":"Block diagram","score":0.5126561522483826},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.49523940682411194},{"id":"https://openalex.org/keywords/block","display_name":"Block (permutation group theory)","score":0.48236387968063354},{"id":"https://openalex.org/keywords/radar-imaging","display_name":"Radar imaging","score":0.4425497055053711},{"id":"https://openalex.org/keywords/energy","display_name":"Energy (signal processing)","score":0.4407818913459778},{"id":"https://openalex.org/keywords/satellite-system","display_name":"Satellite system","score":0.4168112576007843},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.3502841889858246},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.25413766503334045},{"id":"https://openalex.org/keywords/global-positioning-system","display_name":"Global Positioning System","score":0.2534583806991577},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.20703738927841187},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.11026263236999512},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.09477853775024414}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7799974679946899},{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.6920729875564575},{"id":"https://openalex.org/C2780598303","wikidata":"https://www.wikidata.org/wiki/Q65921492","display_name":"Flexibility (engineering)","level":2,"score":0.5559633374214172},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.5495818257331848},{"id":"https://openalex.org/C14279187","wikidata":"https://www.wikidata.org/wiki/Q5514012","display_name":"GNSS applications","level":3,"score":0.5193051695823669},{"id":"https://openalex.org/C149227320","wikidata":"https://www.wikidata.org/wiki/Q884718","display_name":"Block diagram","level":2,"score":0.5126561522483826},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.49523940682411194},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.48236387968063354},{"id":"https://openalex.org/C10929652","wikidata":"https://www.wikidata.org/wiki/Q7279985","display_name":"Radar imaging","level":3,"score":0.4425497055053711},{"id":"https://openalex.org/C186370098","wikidata":"https://www.wikidata.org/wiki/Q442787","display_name":"Energy (signal processing)","level":2,"score":0.4407818913459778},{"id":"https://openalex.org/C2778027091","wikidata":"https://www.wikidata.org/wiki/Q25346003","display_name":"Satellite system","level":4,"score":0.4168112576007843},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.3502841889858246},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.25413766503334045},{"id":"https://openalex.org/C60229501","wikidata":"https://www.wikidata.org/wiki/Q18822","display_name":"Global Positioning System","level":2,"score":0.2534583806991577},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.20703738927841187},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.11026263236999512},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.09477853775024414},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","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/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss47720.2021.9554441","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss47720.2021.9554441","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8899999856948853,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"awards":[{"id":"https://openalex.org/G7707223764","display_name":null,"funder_award_id":"61901088,61922023,61771113","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":6,"referenced_works":["https://openalex.org/W2002740413","https://openalex.org/W2025943163","https://openalex.org/W2026057110","https://openalex.org/W2102685872","https://openalex.org/W2501646324","https://openalex.org/W2898188941"],"related_works":["https://openalex.org/W2606296569","https://openalex.org/W2375040471","https://openalex.org/W2068158190","https://openalex.org/W2916802843","https://openalex.org/W2064660797","https://openalex.org/W4387714868","https://openalex.org/W2071552392","https://openalex.org/W20579766","https://openalex.org/W4396749081","https://openalex.org/W4392115504"],"abstract_inverted_index":{"Unmanned":[0],"ariel":[1],"vehicle":[2],"(UAV)":[3],"can":[4],"provide":[5],"superior":[6],"flexibility":[7],"and":[8,36,60,64,76,117],"cost-efficiency":[9],"for":[10,20],"modern":[11],"radar":[12],"imaging":[13,67,116],"systems,":[14],"which":[15],"is":[16,34,97],"an":[17,28,47],"ideal":[18],"platform":[19,40],"advanced":[21],"remote":[22],"sensing":[23],"applications.":[24],"In":[25],"this":[26],"paper,":[27],"energy-efficient":[29],"passive":[30,114],"UAV":[31,39,112],"SAR":[32,52,66,115],"system":[33,77,106],"proposed":[35,125],"investigated.":[37],"The":[38,73],"passively":[41],"reuses":[42],"the":[43,86,89,102,105,121,124],"backscattered":[44],"signal":[45],"from":[46],"external":[48],"illuminator,":[49],"such":[50],"as":[51],"satellite,":[53],"GNSS":[54],"or":[55],"ground-based":[56],"stationary":[57],"commercial":[58],"illuminators,":[59],"achieves":[61],"data":[62,118],"communication":[63],"bi-static":[65],"at":[68],"a":[69,108],"ground":[70],"processing":[71],"station.":[72],"mission":[74,94],"concept":[75],"block":[78],"diagram":[79],"are":[80,128],"first":[81],"presented":[82],"with":[83],"justifications":[84],"on":[85],"advantages":[87],"of":[88,93,104,123],"system.":[90],"A":[91],"set":[92],"performance":[95,126],"evaluators":[96,127],"established":[98],"to":[99],"quantitatively":[100],"assess":[101],"capability":[103],"in":[107],"comprehensive":[109],"manner,":[110],"including":[111],"navigation,":[113],"communication.":[119],"Finally,":[120],"validity":[122],"verified":[129],"by":[130],"numerical":[131],"simulations.":[132]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":2},{"year":2022,"cited_by_count":2}],"updated_date":"2026-03-12T08:34:05.389933","created_date":"2025-10-10T00:00:00"}
