{"id":"https://openalex.org/W2778449763","doi":"https://doi.org/10.1109/lcomm.2017.2787698","title":"DOA Estimation for Coprime Linear Arrays: An Ambiguity-Free Method Involving Full DOFs","display_name":"DOA Estimation for Coprime Linear Arrays: An Ambiguity-Free Method Involving Full DOFs","publication_year":2017,"publication_date":"2017-12-27","ids":{"openalex":"https://openalex.org/W2778449763","doi":"https://doi.org/10.1109/lcomm.2017.2787698","mag":"2778449763"},"language":"en","primary_location":{"id":"doi:10.1109/lcomm.2017.2787698","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2017.2787698","pdf_url":null,"source":{"id":"https://openalex.org/S147316732","display_name":"IEEE Communications Letters","issn_l":"1089-7798","issn":["1089-7798","1558-2558","2373-7891"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications 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/A5082429626","display_name":"Zheng Wang","orcid":"https://orcid.org/0000-0001-8305-0676"},"institutions":[{"id":"https://openalex.org/I9842412","display_name":"Nanjing University of Aeronautics and Astronautics","ror":"https://ror.org/01scyh794","country_code":"CN","type":"education","lineage":["https://openalex.org/I9842412"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wang Zheng","raw_affiliation_strings":["College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0001-8305-0676","affiliations":[{"raw_affiliation_string":"College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China","institution_ids":["https://openalex.org/I9842412"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100447052","display_name":"Xiaofei Zhang","orcid":"https://orcid.org/0000-0003-1464-1987"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]},{"id":"https://openalex.org/I9842412","display_name":"Nanjing University of Aeronautics and Astronautics","ror":"https://ror.org/01scyh794","country_code":"CN","type":"education","lineage":["https://openalex.org/I9842412"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaofei Zhang","raw_affiliation_strings":["College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China","State Key Laboratory of Millimeter Waves, Southeast University, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0003-1464-1987","affiliations":[{"raw_affiliation_string":"College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China","institution_ids":["https://openalex.org/I9842412"]},{"raw_affiliation_string":"State Key Laboratory of Millimeter Waves, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101517970","display_name":"Pan Gong","orcid":"https://orcid.org/0000-0001-7923-6814"},"institutions":[{"id":"https://openalex.org/I9842412","display_name":"Nanjing University of Aeronautics and Astronautics","ror":"https://ror.org/01scyh794","country_code":"CN","type":"education","lineage":["https://openalex.org/I9842412"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Pan Gong","raw_affiliation_strings":["College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China","institution_ids":["https://openalex.org/I9842412"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101810521","display_name":"Hui Zhai","orcid":"https://orcid.org/0000-0001-8163-4547"},"institutions":[{"id":"https://openalex.org/I9842412","display_name":"Nanjing University of Aeronautics and Astronautics","ror":"https://ror.org/01scyh794","country_code":"CN","type":"education","lineage":["https://openalex.org/I9842412"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hui Zhai","raw_affiliation_strings":["College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0001-8163-4547","affiliations":[{"raw_affiliation_string":"College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China","institution_ids":["https://openalex.org/I9842412"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":5.9761,"has_fulltext":false,"cited_by_count":82,"citation_normalized_percentile":{"value":0.9708612,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":97,"max":100},"biblio":{"volume":"22","issue":"3","first_page":"562","last_page":"565"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10931","display_name":"Direction-of-Arrival Estimation Techniques","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T10931","display_name":"Direction-of-Arrival Estimation Techniques","score":0.9998999834060669,"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"}},{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.9990000128746033,"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"}},{"id":"https://openalex.org/T11946","display_name":"Antenna Design and Optimization","score":0.9983999729156494,"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/coprime-integers","display_name":"Coprime integers","score":0.8668163418769836},{"id":"https://openalex.org/keywords/upper-and-lower-bounds","display_name":"Upper and lower bounds","score":0.6348013877868652},{"id":"https://openalex.org/keywords/direction-of-arrival","display_name":"Direction of arrival","score":0.568825900554657},{"id":"https://openalex.org/keywords/degrees-of-freedom","display_name":"Degrees of freedom (physics and chemistry)","score":0.5622696876525879},{"id":"https://openalex.org/keywords/ambiguity","display_name":"Ambiguity","score":0.5605975389480591},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5583008527755737},{"id":"https://openalex.org/keywords/benchmark","display_name":"Benchmark (surveying)","score":0.5465568900108337},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5043259859085083},{"id":"https://openalex.org/keywords/property","display_name":"Property (philosophy)","score":0.4194062054157257},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.38311466574668884},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.34883078932762146},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.12921729683876038},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.1261490285396576},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.063443124294281}],"concepts":[{"id":"https://openalex.org/C23230895","wikidata":"https://www.wikidata.org/wiki/Q104752","display_name":"Coprime integers","level":2,"score":0.8668163418769836},{"id":"https://openalex.org/C77553402","wikidata":"https://www.wikidata.org/wiki/Q13222579","display_name":"Upper and lower bounds","level":2,"score":0.6348013877868652},{"id":"https://openalex.org/C172051844","wikidata":"https://www.wikidata.org/wiki/Q5280438","display_name":"Direction of arrival","level":3,"score":0.568825900554657},{"id":"https://openalex.org/C208081375","wikidata":"https://www.wikidata.org/wiki/Q274502","display_name":"Degrees of freedom (physics and chemistry)","level":2,"score":0.5622696876525879},{"id":"https://openalex.org/C2780522230","wikidata":"https://www.wikidata.org/wiki/Q1140419","display_name":"Ambiguity","level":2,"score":0.5605975389480591},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5583008527755737},{"id":"https://openalex.org/C185798385","wikidata":"https://www.wikidata.org/wiki/Q1161707","display_name":"Benchmark (surveying)","level":2,"score":0.5465568900108337},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5043259859085083},{"id":"https://openalex.org/C189950617","wikidata":"https://www.wikidata.org/wiki/Q937228","display_name":"Property (philosophy)","level":2,"score":0.4194062054157257},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.38311466574668884},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.34883078932762146},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.12921729683876038},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.1261490285396576},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.063443124294281},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.0},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.0},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lcomm.2017.2787698","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lcomm.2017.2787698","pdf_url":null,"source":{"id":"https://openalex.org/S147316732","display_name":"IEEE Communications Letters","issn_l":"1089-7798","issn":["1089-7798","1558-2558","2373-7891"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8299999833106995,"id":"https://metadata.un.org/sdg/16","display_name":"Peace, Justice and strong institutions"}],"awards":[{"id":"https://openalex.org/G1553110329","display_name":null,"funder_award_id":"61601167","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3447316154","display_name":null,"funder_award_id":"NE2017103","funder_id":"https://openalex.org/F4320335787","funder_display_name":"Fundamental Research Funds for the Central Universities"},{"id":"https://openalex.org/G5472973253","display_name":null,"funder_award_id":"61601504","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5828728916","display_name":null,"funder_award_id":"K201826","funder_id":"https://openalex.org/F4320324856","funder_display_name":"Southeast University"},{"id":"https://openalex.org/G6781996862","display_name":"\u57fa\u4e8e\u5e73\u884c\u56e0\u5b50\u538b\u7f29\u611f\u77e5\u7406\u8bba\u7684\u9635\u5217\u4fe1\u53f7\u5904\u7406\u7b97\u6cd5\u7814\u7a76","funder_award_id":"61371169","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"},{"id":"https://openalex.org/F4320324856","display_name":"Southeast University","ror":"https://ror.org/04ct4d772"},{"id":"https://openalex.org/F4320335787","display_name":"Fundamental Research Funds for the Central Universities","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W1998435731","https://openalex.org/W2003157621","https://openalex.org/W2087543940","https://openalex.org/W2092042417","https://openalex.org/W2098174516","https://openalex.org/W2113065846","https://openalex.org/W2113638573","https://openalex.org/W2116414176","https://openalex.org/W2128131274","https://openalex.org/W2136274821","https://openalex.org/W2149551443","https://openalex.org/W2149755721","https://openalex.org/W2162654459","https://openalex.org/W2164390589","https://openalex.org/W2280231816","https://openalex.org/W2514647062","https://openalex.org/W6673641310"],"related_works":["https://openalex.org/W2849843506","https://openalex.org/W2807202449","https://openalex.org/W4317795331","https://openalex.org/W2760841258","https://openalex.org/W3205335469","https://openalex.org/W3163554692","https://openalex.org/W4320015584","https://openalex.org/W2913381933","https://openalex.org/W4220804790","https://openalex.org/W2736071613"],"abstract_inverted_index":{"In":[0,52],"this":[1],"letter,":[2],"an":[3],"ambiguity-free":[4,145],"direction":[5],"of":[6,19,31,56,66,118,129,142],"arrival":[7],"(DOA)":[8],"estimation":[9,105],"method":[10,36,146],"for":[11,103,125,147],"coprime":[12,50,81],"linear":[13,22],"array":[14,82,92],"(CLA),":[15],"which":[16,100],"generally":[17],"consists":[18],"two":[20,32,77,97],"uniform":[21],"subarrays,":[23,33,98],"is":[24,87,120],"proposed.":[25],"By":[26],"stacking":[27],"the":[28,34,39,44,73,91,96,101,126,138,143,151],"received":[29],"data":[30],"proposed":[35,144],"can":[37,58,106],"suppress":[38],"ambiguity":[40],"problem":[41],"and":[42,68,112,140,150],"obtain":[43],"unique":[45],"DOA":[46,104,110,131],"estimates":[47,111],"based":[48],"on":[49],"property.":[51],"addition,":[53],"full":[54],"degrees":[55],"freedom":[57],"be":[59],"attained":[60],"due":[61],"to":[62,89,136],"a":[63,80,123],"joint":[64],"utilization":[65],"self-information":[67],"mutual":[69],"information.":[70],"Moreover,":[71],"unlike":[72],"general":[74,152],"CLA":[75],"with":[76,83,99],"subarrays":[78,85],"interleaved,":[79],"adjoined":[84],"(CAAdS)":[86],"devised":[88],"enlarge":[90],"aperture":[93],"by":[94],"adjoining":[95],"methods":[102],"achieve":[107],"more":[108],"accurate":[109],"enhanced":[113],"resolution.":[114],"Furthermore,":[115],"Cramer-Rao":[116],"bound":[117,128],"CAAdS":[119,149],"provided":[121],"as":[122],"benchmark":[124],"lower":[127],"unbiased":[130],"estimates.":[132],"Simulations":[133],"are":[134],"given":[135],"validate":[137],"effectiveness":[139],"superiority":[141],"both":[148],"CLA.":[153]},"counts_by_year":[{"year":2025,"cited_by_count":7},{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":7},{"year":2022,"cited_by_count":19},{"year":2021,"cited_by_count":12},{"year":2020,"cited_by_count":14},{"year":2019,"cited_by_count":14},{"year":2018,"cited_by_count":4}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}