{"id":"https://openalex.org/W2997356438","doi":"https://doi.org/10.1109/access.2020.2963838","title":"Knowledge Aided Covariance Matrix Estimation via Gaussian Kernel Function for Airborne SR-STAP","display_name":"Knowledge Aided Covariance Matrix Estimation via Gaussian Kernel Function for Airborne SR-STAP","publication_year":2020,"publication_date":"2020-01-01","ids":{"openalex":"https://openalex.org/W2997356438","doi":"https://doi.org/10.1109/access.2020.2963838","mag":"2997356438"},"language":"en","primary_location":{"id":"doi:10.1109/access.2020.2963838","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2020.2963838","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8948470/08949537.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/ielx7/6287639/8948470/08949537.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100710467","display_name":"Mingxin Liu","orcid":"https://orcid.org/0009-0002-5699-7543"},"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":"Mingxin Liu","raw_affiliation_strings":["School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China"],"affiliations":[{"raw_affiliation_string":"School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100743863","display_name":"Lin Zou","orcid":"https://orcid.org/0000-0001-7880-2992"},"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":"Lin Zou","raw_affiliation_strings":["School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China"],"affiliations":[{"raw_affiliation_string":"School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101900861","display_name":"Xuelian Yu","orcid":"https://orcid.org/0000-0002-9577-3238"},"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":"Xuelian Yu","raw_affiliation_strings":["School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China"],"affiliations":[{"raw_affiliation_string":"School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101920511","display_name":"Yun Zhou","orcid":"https://orcid.org/0000-0003-1364-0069"},"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":"Yun Zhou","raw_affiliation_strings":["School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China"],"affiliations":[{"raw_affiliation_string":"School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5050556614","display_name":"Xuegang Wang","orcid":"https://orcid.org/0000-0001-9008-5914"},"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":"Xuegang Wang","raw_affiliation_strings":["School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China"],"affiliations":[{"raw_affiliation_string":"School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5036998382","display_name":"Bin Tang","orcid":"https://orcid.org/0000-0003-3703-2543"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Bin Tang","raw_affiliation_strings":["College-Enterprise Joint Avionics Innovation Base in Sichuan, Chengdu, China","School of General Aviation, Chengdu Aeronautic Polytechnic, Chengdu, China"],"affiliations":[{"raw_affiliation_string":"College-Enterprise Joint Avionics Innovation Base in Sichuan, Chengdu, China","institution_ids":[]},{"raw_affiliation_string":"School of General Aviation, Chengdu Aeronautic Polytechnic, Chengdu, China","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5100710467"],"corresponding_institution_ids":["https://openalex.org/I150229711"],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":26.0452,"has_fulltext":true,"cited_by_count":18,"citation_normalized_percentile":{"value":0.99005412,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":98},"biblio":{"volume":"8","issue":null,"first_page":"5970","last_page":"5978"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10891","display_name":"Radar Systems and Signal Processing","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/T10891","display_name":"Radar Systems and Signal Processing","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/T11038","display_name":"Advanced SAR Imaging Techniques","score":0.9987000226974487,"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/T10931","display_name":"Direction-of-Arrival Estimation Techniques","score":0.996999979019165,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/clutter","display_name":"Clutter","score":0.8870264291763306},{"id":"https://openalex.org/keywords/covariance-matrix","display_name":"Covariance matrix","score":0.7184717655181885},{"id":"https://openalex.org/keywords/space-time-adaptive-processing","display_name":"Space-time adaptive processing","score":0.6822601556777954},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.630333423614502},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.5704430341720581},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5259982347488403},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.46763065457344055},{"id":"https://openalex.org/keywords/kernel","display_name":"Kernel (algebra)","score":0.4594195485115051},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.4572645127773285},{"id":"https://openalex.org/keywords/constant-false-alarm-rate","display_name":"Constant false alarm rate","score":0.45678624510765076},{"id":"https://openalex.org/keywords/gaussian","display_name":"Gaussian","score":0.4422953724861145},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.40240979194641113},{"id":"https://openalex.org/keywords/continuous-wave-radar","display_name":"Continuous-wave radar","score":0.26414215564727783},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.26366087794303894},{"id":"https://openalex.org/keywords/radar-imaging","display_name":"Radar imaging","score":0.14857882261276245},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.08179137110710144},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.08098232746124268}],"concepts":[{"id":"https://openalex.org/C132094186","wikidata":"https://www.wikidata.org/wiki/Q641585","display_name":"Clutter","level":3,"score":0.8870264291763306},{"id":"https://openalex.org/C185142706","wikidata":"https://www.wikidata.org/wiki/Q1134404","display_name":"Covariance matrix","level":2,"score":0.7184717655181885},{"id":"https://openalex.org/C190203512","wikidata":"https://www.wikidata.org/wiki/Q7572182","display_name":"Space-time adaptive processing","level":5,"score":0.6822601556777954},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.630333423614502},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.5704430341720581},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5259982347488403},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.46763065457344055},{"id":"https://openalex.org/C74193536","wikidata":"https://www.wikidata.org/wiki/Q574844","display_name":"Kernel (algebra)","level":2,"score":0.4594195485115051},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.4572645127773285},{"id":"https://openalex.org/C77052588","wikidata":"https://www.wikidata.org/wiki/Q644307","display_name":"Constant false alarm rate","level":2,"score":0.45678624510765076},{"id":"https://openalex.org/C163716315","wikidata":"https://www.wikidata.org/wiki/Q901177","display_name":"Gaussian","level":2,"score":0.4422953724861145},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.40240979194641113},{"id":"https://openalex.org/C59584813","wikidata":"https://www.wikidata.org/wiki/Q1029234","display_name":"Continuous-wave radar","level":4,"score":0.26414215564727783},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.26366087794303894},{"id":"https://openalex.org/C10929652","wikidata":"https://www.wikidata.org/wiki/Q7279985","display_name":"Radar imaging","level":3,"score":0.14857882261276245},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.08179137110710144},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.08098232746124268},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2020.2963838","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2020.2963838","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8948470/08949537.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:6a02ecc0d58347e2867f7e532335336e","is_oa":true,"landing_page_url":"https://doaj.org/article/6a02ecc0d58347e2867f7e532335336e","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"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 5970-5978 (2020)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2020.2963838","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2020.2963838","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8948470/08949537.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":[],"awards":[{"id":"https://openalex.org/G1121271761","display_name":null,"funder_award_id":"Program","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G1231421488","display_name":null,"funder_award_id":"under","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G2087396116","display_name":null,"funder_award_id":"China","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G231933381","display_name":null,"funder_award_id":"61806046","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3317480652","display_name":null,"funder_award_id":"Science","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G391238517","display_name":null,"funder_award_id":", and","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5939423041","display_name":null,"funder_award_id":"Technology","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5994120800","display_name":null,"funder_award_id":"Natural","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8955107213","display_name":null,"funder_award_id":"Major","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/W2997356438.pdf","grobid_xml":"https://content.openalex.org/works/W2997356438.grobid-xml"},"referenced_works_count":22,"referenced_works":["https://openalex.org/W1504174073","https://openalex.org/W1619466027","https://openalex.org/W1827018980","https://openalex.org/W1986362571","https://openalex.org/W1992172678","https://openalex.org/W2013438974","https://openalex.org/W2051389038","https://openalex.org/W2053909837","https://openalex.org/W2085812935","https://openalex.org/W2087050761","https://openalex.org/W2114118063","https://openalex.org/W2114256390","https://openalex.org/W2115458638","https://openalex.org/W2122956087","https://openalex.org/W2126568557","https://openalex.org/W2140122025","https://openalex.org/W2145686608","https://openalex.org/W2149246019","https://openalex.org/W2265919601","https://openalex.org/W2895489867","https://openalex.org/W2900069527","https://openalex.org/W4205733750"],"related_works":["https://openalex.org/W2388326001","https://openalex.org/W2115015615","https://openalex.org/W2351401443","https://openalex.org/W3011102797","https://openalex.org/W4320921117","https://openalex.org/W2431104759","https://openalex.org/W1649651896","https://openalex.org/W2317958419","https://openalex.org/W2116961228","https://openalex.org/W3173283069"],"abstract_inverted_index":{"In":[0],"practical":[1],"airborne":[2],"radar,":[3],"the":[4,16,68,72,78,94,103,114,125,130,139,144,152],"interference":[5,62,83,145],"signals":[6,63,84],"in":[7,21,64,157],"training":[8,65,86],"snapshots":[9,66,87],"usually":[10],"lead":[11],"to":[12,123],"inaccurate":[13],"estimation":[14],"of":[15,129],"clutter":[17,59,73,79,161],"covariance":[18],"matrix":[19],"(CCM)":[20],"space-time":[22],"adaptive":[23],"processing":[24],"(STAP),":[25],"which":[26,81,110],"seriously":[27],"degrade":[28],"radar":[29],"performance":[30,156],"and":[31,61,127,150,159],"even":[32],"occur":[33],"target":[34,154],"self-nulling":[35],"phenomenon.":[36],"To":[37],"solve":[38],"this":[39],"problem,":[40],"a":[41],"knowledge-aided":[42],"sparse":[43],"recovery":[44],"(SR)":[45],"STAP":[46,105],"algorithm":[47,141],"based":[48],"on":[49],"Gaussian":[50,89],"kernel":[51,90],"function":[52],"is":[53,96,108,111],"developed.":[54],"The":[55,118,133],"proposed":[56,104,131,140],"method":[57],"distinguishes":[58],"components":[60,74],"by":[67,88,98],"priori":[69],"knowledge":[70],"that":[71,138],"are":[75],"distributed":[76],"along":[77],"ridge,":[80],"dislodges":[82],"from":[85],"similar":[91],"degree.":[92],"Thus,":[93],"CCM":[95],"estimated":[97],"utilizing":[99],"these":[100],"snapshots.":[101],"Finally,":[102],"weight":[106],"vector":[107],"built,":[109],"convenient":[112],"for":[113],"subsequent":[115],"signal":[116],"processing.":[117],"experimental":[119],"results":[120,135],"were":[121],"performed":[122],"verify":[124],"effectiveness":[126],"superiority":[128],"method.":[132],"test":[134],"also":[136],"show":[137],"completely":[142],"removes":[143],"signals,":[146],"accurately":[147],"estimates":[148],"CCM,":[149],"improves":[151],"moving":[153],"detection":[155],"small-sample":[158],"non-homogeneous":[160],"environments.":[162]},"counts_by_year":[{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":6},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":4}],"updated_date":"2026-04-13T07:58:08.660418","created_date":"2025-10-10T00:00:00"}