{"id":"https://openalex.org/W3041851724","doi":"https://doi.org/10.1109/access.2020.3008166","title":"Sparse Nonuniform Frequency Sampling for Fast SFCW Radar Imaging","display_name":"Sparse Nonuniform Frequency Sampling for Fast SFCW Radar Imaging","publication_year":2020,"publication_date":"2020-01-01","ids":{"openalex":"https://openalex.org/W3041851724","doi":"https://doi.org/10.1109/access.2020.3008166","mag":"3041851724"},"language":"en","primary_location":{"id":"doi:10.1109/access.2020.3008166","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2020.3008166","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8948470/09137628.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://ieeexplore.ieee.org/ielx7/6287639/8948470/09137628.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5037678719","display_name":"Weikang Si","orcid":"https://orcid.org/0000-0003-0728-9647"},"institutions":[{"id":"https://openalex.org/I82880672","display_name":"Beihang University","ror":"https://ror.org/00wk2mp56","country_code":"CN","type":"education","lineage":["https://openalex.org/I82880672"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Weikang Si","raw_affiliation_strings":["School of Electronics and Information Engineering, Beihang University, Beijing 100191, China","School of Electronics and Information Engineering, Beihang University, Beijing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electronics and Information Engineering, Beihang University, Beijing 100191, China","institution_ids":["https://openalex.org/I82880672"]},{"raw_affiliation_string":"School of Electronics and Information Engineering, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029144933","display_name":"Xiaodong Zhuge","orcid":"https://orcid.org/0000-0001-8758-3146"},"institutions":[{"id":"https://openalex.org/I82880672","display_name":"Beihang University","ror":"https://ror.org/00wk2mp56","country_code":"CN","type":"education","lineage":["https://openalex.org/I82880672"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaodong Zhuge","raw_affiliation_strings":["School of Electronics and Information Engineering, Beihang University, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0001-8758-3146","affiliations":[{"raw_affiliation_string":"School of Electronics and Information Engineering, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5040577230","display_name":"Jungang Miao","orcid":"https://orcid.org/0000-0002-8772-7602"},"institutions":[{"id":"https://openalex.org/I82880672","display_name":"Beihang University","ror":"https://ror.org/00wk2mp56","country_code":"CN","type":"education","lineage":["https://openalex.org/I82880672"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jungang Miao","raw_affiliation_strings":["School of Electronics and Information Engineering, Beihang University, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0002-8772-7602","affiliations":[{"raw_affiliation_string":"School of Electronics and Information Engineering, Beihang University, Beijing, China","institution_ids":["https://openalex.org/I82880672"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I82880672"],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":0.1473,"has_fulltext":true,"cited_by_count":4,"citation_normalized_percentile":{"value":0.39598638,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":97},"biblio":{"volume":"8","issue":null,"first_page":"126573","last_page":"126581"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11739","display_name":"Microwave Imaging and Scattering Analysis","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/T11739","display_name":"Microwave Imaging and Scattering Analysis","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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":0.9994000196456909,"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":0.9994000196456909,"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/radar","display_name":"Radar","score":0.6511365175247192},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5209854245185852},{"id":"https://openalex.org/keywords/aliasing","display_name":"Aliasing","score":0.5041841268539429},{"id":"https://openalex.org/keywords/frequency-domain","display_name":"Frequency domain","score":0.4968457520008087},{"id":"https://openalex.org/keywords/sampling","display_name":"Sampling (signal processing)","score":0.49185609817504883},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.48114240169525146},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.480426549911499},{"id":"https://openalex.org/keywords/coherent-sampling","display_name":"Coherent sampling","score":0.46904975175857544},{"id":"https://openalex.org/keywords/discrete-frequency-domain","display_name":"Discrete frequency domain","score":0.46854886412620544},{"id":"https://openalex.org/keywords/weighting","display_name":"Weighting","score":0.41504934430122375},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3710164427757263},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.2801978588104248},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.2605496644973755},{"id":"https://openalex.org/keywords/undersampling","display_name":"Undersampling","score":0.23368093371391296},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.21687504649162292},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.12565991282463074}],"concepts":[{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.6511365175247192},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5209854245185852},{"id":"https://openalex.org/C4069607","wikidata":"https://www.wikidata.org/wiki/Q868732","display_name":"Aliasing","level":3,"score":0.5041841268539429},{"id":"https://openalex.org/C19118579","wikidata":"https://www.wikidata.org/wiki/Q786423","display_name":"Frequency domain","level":2,"score":0.4968457520008087},{"id":"https://openalex.org/C140779682","wikidata":"https://www.wikidata.org/wiki/Q210868","display_name":"Sampling (signal processing)","level":3,"score":0.49185609817504883},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.48114240169525146},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.480426549911499},{"id":"https://openalex.org/C31942786","wikidata":"https://www.wikidata.org/wiki/Q679800","display_name":"Coherent sampling","level":4,"score":0.46904975175857544},{"id":"https://openalex.org/C23548689","wikidata":"https://www.wikidata.org/wiki/Q5282049","display_name":"Discrete frequency domain","level":3,"score":0.46854886412620544},{"id":"https://openalex.org/C183115368","wikidata":"https://www.wikidata.org/wiki/Q856577","display_name":"Weighting","level":2,"score":0.41504934430122375},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3710164427757263},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.2801978588104248},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.2605496644973755},{"id":"https://openalex.org/C136536468","wikidata":"https://www.wikidata.org/wiki/Q1225894","display_name":"Undersampling","level":2,"score":0.23368093371391296},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.21687504649162292},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.12565991282463074},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2020.3008166","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2020.3008166","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8948470/09137628.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:0c4fd66efedb4e02aa369b44732b1146","is_oa":true,"landing_page_url":"https://doaj.org/article/0c4fd66efedb4e02aa369b44732b1146","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 8, Pp 126573-126581 (2020)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2020.3008166","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2020.3008166","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8948470/09137628.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":0.5199999809265137}],"awards":[{"id":"https://openalex.org/G1755048571","display_name":"\u540c\u8f68\u96c6\u5408SAR-Scatterometer\u5fae\u6ce2\u591a\u7ef4\u63a2\u6d4b\u7406\u8bba\u4e0e\u6a21\u5f0f\u7814\u7a76","funder_award_id":"41531175","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7312547826","display_name":"\u517c\u5177\u5feb\u901f\u4eba\u4f53\u6210\u50cf\u4e0e\u5371\u7206\u54c1\u5c5e\u6027\u68c0\u6d4b\u7684\u6beb\u7c73\u6ce2\u4e3b\u88ab\u52a8\u590d\u5408\u975e\u5408\u4f5c\u5b89\u68c0\u65b0\u4f53\u5236\u7814\u7a76","funder_award_id":"61731001","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":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3041851724.pdf","grobid_xml":"https://content.openalex.org/works/W3041851724.grobid-xml"},"referenced_works_count":28,"referenced_works":["https://openalex.org/W225265453","https://openalex.org/W1494482350","https://openalex.org/W1965044187","https://openalex.org/W1985366728","https://openalex.org/W2008937464","https://openalex.org/W2010122118","https://openalex.org/W2012300893","https://openalex.org/W2032231305","https://openalex.org/W2050939142","https://openalex.org/W2066504017","https://openalex.org/W2074524385","https://openalex.org/W2074873696","https://openalex.org/W2091636800","https://openalex.org/W2091994082","https://openalex.org/W2104330246","https://openalex.org/W2117102180","https://openalex.org/W2118585176","https://openalex.org/W2121164326","https://openalex.org/W2127303624","https://openalex.org/W2152294662","https://openalex.org/W2163000201","https://openalex.org/W2164390589","https://openalex.org/W2167604521","https://openalex.org/W2231880716","https://openalex.org/W2313559663","https://openalex.org/W2587497439","https://openalex.org/W2792765611","https://openalex.org/W6684170742"],"related_works":["https://openalex.org/W2387422968","https://openalex.org/W2006750848","https://openalex.org/W2388903058","https://openalex.org/W2790255587","https://openalex.org/W2164548408","https://openalex.org/W2015118744","https://openalex.org/W2942155422","https://openalex.org/W2392579908","https://openalex.org/W2155647660","https://openalex.org/W2158622961"],"abstract_inverted_index":{"Stepped":[0],"frequency":[1,20,28,49,96,135,139,162],"continuous":[2],"wave":[3],"(SFCW)":[4],"radar":[5,41,183],"achieves":[6],"wide":[7],"bandwidth":[8],"by":[9,39,159],"synthesizing":[10],"series":[11],"of":[12,64,79,106,130,175],"monochromatic":[13],"pulses":[14],"in":[15,31,144,153],"a":[16,26,47,76,93,122,127,133],"consecutive":[17],"manner.":[18],"Uniform":[19],"sampling":[21,97,179],"is":[22,66,73,99,118,142],"often":[23],"performed":[24],"with":[25],"constant":[27],"step,":[29],"which":[30,84],"turn":[32],"limits":[33],"the":[34,40,62,104,148,156,172,176],"maximum":[35],"unambiguous":[36],"range":[37],"achievable":[38],"to":[42,86,101,120,146,170],"reliably":[43],"distinguish":[44],"targets.":[45],"Thus,":[46],"small":[48],"step":[50],"must":[51,81],"be":[52,82],"selected":[53],"when":[54],"clutters":[55],"exist":[56],"at":[57,68],"long":[58],"distances":[59],"even":[60],"though":[61],"target":[63,150],"interests":[65],"located":[67],"much":[69],"closer":[70],"distances.":[71],"This":[72],"costly":[74],"since":[75],"large":[77],"number":[78,105],"frequencies":[80,107,131],"synthesized,":[83],"leads":[85],"slow":[87],"acquisition":[88],"speed.":[89],"In":[90],"this":[91],"paper,":[92],"sparse":[94,178],"nonuniform":[95],"method":[98,180],"proposed":[100,177],"effectively":[102],"reduce":[103],"while":[108],"suppressing":[109],"aliasing":[110],"effects":[111],"from":[112],"clutters.":[113],"The":[114],"Poisson":[115],"Sum":[116],"Formula":[117],"utilized":[119],"derive":[121],"deterministic":[123],"formula":[124,141],"for":[125,181],"choosing":[126],"discrete":[128],"set":[129],"within":[132],"specified":[134],"band.":[136],"A":[137],"corresponding":[138],"weighting":[140],"added":[143],"order":[145],"maintain":[147],"same":[149],"impulse":[151],"response":[152],"time-domain":[154],"as":[155],"one":[157],"achieved":[158],"dense":[160],"uniform":[161],"sampling.":[163],"Numerical":[164],"and":[165],"experimental":[166],"results":[167],"are":[168],"presented":[169],"demonstrate":[171],"improved":[173],"performances":[174],"SFCW":[182],"imaging.":[184]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2021,"cited_by_count":2}],"updated_date":"2026-07-29T09:40:50.615796","created_date":"2025-10-10T00:00:00"}