{"id":"https://openalex.org/W1494137208","doi":"https://doi.org/10.1109/icdsp.2015.7251962","title":"Gridless postprocessing for sparse signal reconstruction based DOA estimation","display_name":"Gridless postprocessing for sparse signal reconstruction based DOA estimation","publication_year":2015,"publication_date":"2015-07-01","ids":{"openalex":"https://openalex.org/W1494137208","doi":"https://doi.org/10.1109/icdsp.2015.7251962","mag":"1494137208"},"language":"en","primary_location":{"id":"doi:10.1109/icdsp.2015.7251962","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icdsp.2015.7251962","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE International Conference on Digital Signal Processing (DSP)","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/A5062793011","display_name":"Xiaohuan Wu","orcid":"https://orcid.org/0000-0003-3190-6115"},"institutions":[{"id":"https://openalex.org/I41198531","display_name":"Nanjing University of Posts and Telecommunications","ror":"https://ror.org/043bpky34","country_code":"CN","type":"education","lineage":["https://openalex.org/I41198531"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Xiaohuan Wu","raw_affiliation_strings":["Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecommunications, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecommunications, Nanjing, China","institution_ids":["https://openalex.org/I41198531"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5033247734","display_name":"Wei\u2010Ping Zhu","orcid":null},"institutions":[{"id":"https://openalex.org/I41198531","display_name":"Nanjing University of Posts and Telecommunications","ror":"https://ror.org/043bpky34","country_code":"CN","type":"education","lineage":["https://openalex.org/I41198531"]},{"id":"https://openalex.org/I60158472","display_name":"Concordia University","ror":"https://ror.org/0420zvk78","country_code":"CA","type":"education","lineage":["https://openalex.org/I60158472"]}],"countries":["CA","CN"],"is_corresponding":false,"raw_author_name":"Wei-Ping Zhu","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Concordia University, Montreal, Canada","Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecommunications, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Concordia University, Montreal, Canada","institution_ids":["https://openalex.org/I60158472"]},{"raw_affiliation_string":"Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecommunications, Nanjing, China","institution_ids":["https://openalex.org/I41198531"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101781340","display_name":"Jun Yan","orcid":"https://orcid.org/0000-0001-7113-0249"},"institutions":[{"id":"https://openalex.org/I41198531","display_name":"Nanjing University of Posts and Telecommunications","ror":"https://ror.org/043bpky34","country_code":"CN","type":"education","lineage":["https://openalex.org/I41198531"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jun Yan","raw_affiliation_strings":["Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecommunications, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"Institute of Signal Processing and Transmission, Nanjing University of Posts and Telecommunications, Nanjing, China","institution_ids":["https://openalex.org/I41198531"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5062793011"],"corresponding_institution_ids":["https://openalex.org/I41198531"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.0183069,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"30","issue":null,"first_page":"684","last_page":"688"},"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":0.9994000196456909,"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/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":0.9993000030517578,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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":0.7076225876808167},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.6148866415023804},{"id":"https://openalex.org/keywords/discretization","display_name":"Discretization","score":0.5991567373275757},{"id":"https://openalex.org/keywords/convergence","display_name":"Convergence (economics)","score":0.5736986994743347},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.5387301445007324},{"id":"https://openalex.org/keywords/grid","display_name":"Grid","score":0.5311756730079651},{"id":"https://openalex.org/keywords/signal","display_name":"SIGNAL (programming language)","score":0.49043557047843933},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.4482833445072174},{"id":"https://openalex.org/keywords/restricted-isometry-property","display_name":"Restricted isometry property","score":0.44562095403671265},{"id":"https://openalex.org/keywords/property","display_name":"Property (philosophy)","score":0.44163280725479126},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.42764973640441895},{"id":"https://openalex.org/keywords/signal-reconstruction","display_name":"Signal reconstruction","score":0.42717036604881287},{"id":"https://openalex.org/keywords/convex-optimization","display_name":"Convex optimization","score":0.4114540219306946},{"id":"https://openalex.org/keywords/compressed-sensing","display_name":"Compressed sensing","score":0.35912269353866577},{"id":"https://openalex.org/keywords/signal-processing","display_name":"Signal processing","score":0.3294033110141754},{"id":"https://openalex.org/keywords/regular-polygon","display_name":"Regular polygon","score":0.2653028964996338},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2279689610004425},{"id":"https://openalex.org/keywords/digital-signal-processing","display_name":"Digital signal processing","score":0.13378643989562988}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7076225876808167},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.6148866415023804},{"id":"https://openalex.org/C73000952","wikidata":"https://www.wikidata.org/wiki/Q17007827","display_name":"Discretization","level":2,"score":0.5991567373275757},{"id":"https://openalex.org/C2777303404","wikidata":"https://www.wikidata.org/wiki/Q759757","display_name":"Convergence (economics)","level":2,"score":0.5736986994743347},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.5387301445007324},{"id":"https://openalex.org/C187691185","wikidata":"https://www.wikidata.org/wiki/Q2020720","display_name":"Grid","level":2,"score":0.5311756730079651},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.49043557047843933},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.4482833445072174},{"id":"https://openalex.org/C17902559","wikidata":"https://www.wikidata.org/wiki/Q17099734","display_name":"Restricted isometry property","level":3,"score":0.44562095403671265},{"id":"https://openalex.org/C189950617","wikidata":"https://www.wikidata.org/wiki/Q937228","display_name":"Property (philosophy)","level":2,"score":0.44163280725479126},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.42764973640441895},{"id":"https://openalex.org/C70958404","wikidata":"https://www.wikidata.org/wiki/Q7512728","display_name":"Signal reconstruction","level":4,"score":0.42717036604881287},{"id":"https://openalex.org/C157972887","wikidata":"https://www.wikidata.org/wiki/Q463359","display_name":"Convex optimization","level":3,"score":0.4114540219306946},{"id":"https://openalex.org/C124851039","wikidata":"https://www.wikidata.org/wiki/Q2665459","display_name":"Compressed sensing","level":2,"score":0.35912269353866577},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.3294033110141754},{"id":"https://openalex.org/C112680207","wikidata":"https://www.wikidata.org/wiki/Q714886","display_name":"Regular polygon","level":2,"score":0.2653028964996338},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2279689610004425},{"id":"https://openalex.org/C84462506","wikidata":"https://www.wikidata.org/wiki/Q173142","display_name":"Digital signal processing","level":2,"score":0.13378643989562988},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"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/C50522688","wikidata":"https://www.wikidata.org/wiki/Q189833","display_name":"Economic growth","level":1,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"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/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","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/C9390403","wikidata":"https://www.wikidata.org/wiki/Q3966","display_name":"Computer hardware","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icdsp.2015.7251962","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icdsp.2015.7251962","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE International Conference on Digital Signal Processing (DSP)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W1831233010","https://openalex.org/W1997222146","https://openalex.org/W1999867771","https://openalex.org/W2015418199","https://openalex.org/W2021046826","https://openalex.org/W2028823365","https://openalex.org/W2047868781","https://openalex.org/W2066632311","https://openalex.org/W2103519107","https://openalex.org/W2113638573","https://openalex.org/W2115613528","https://openalex.org/W2118693125","https://openalex.org/W2128131274","https://openalex.org/W2149755721","https://openalex.org/W2152541300","https://openalex.org/W2162876243","https://openalex.org/W6677416989"],"related_works":["https://openalex.org/W1595179898","https://openalex.org/W2949399405","https://openalex.org/W4301619540","https://openalex.org/W4297570801","https://openalex.org/W2952050240","https://openalex.org/W2568623927","https://openalex.org/W2468414543","https://openalex.org/W4380434867","https://openalex.org/W1848313300","https://openalex.org/W158549694"],"abstract_inverted_index":{"Recently,":[0],"many":[1],"sparse":[2],"signal":[3,141],"reconstruction":[4],"(SSR)":[5],"based":[6],"methods":[7,17],"have":[8],"been":[9],"proposed":[10,112,153],"for":[11,78,107],"direction-of-arrival":[12],"(DOA)":[13],"estimation.":[14,82,110],"However,":[15,46],"these":[16],"often":[18],"suffer":[19],"from":[20],"the":[21,26,29,58,79,95,100,108,130,132,139,149],"off-grid":[22],"problem":[23,88],"caused":[24],"by":[25,126],"discretization":[27],"of":[28,34,151],"potential":[30],"angle":[31],"space.":[32],"Most":[33],"them":[35],"employ":[36],"iterative":[37],"grid":[38],"refinement":[39],"(IGR)":[40],"method":[41],"to":[42,93,136,147],"alleviate":[43],"this":[44,65],"problem.":[45],"IGR":[47,120,137],"requires":[48],"a":[49,69,85,102],"high":[50],"computational":[51,117],"load":[52,118],"and":[53],"may":[54],"not":[55],"comply":[56],"with":[57,89],"restricted":[59],"isometry":[60],"property":[61],"(RIP)":[62],"condition.":[63],"In":[64],"paper,":[66],"we":[67],"propose":[68],"novel":[70],"postprocessing":[71,76],"scheme":[72,113],"named":[73],"as":[74],"gridless":[75],"(GPP)":[77],"SSR-based":[80],"DOA":[81],"GPP":[83,133],"solves":[84],"convex":[86],"optimization":[87],"an":[90],"alternate":[91],"procedure":[92],"obtain":[94],"bias":[96,109],"estimate.":[97],"To":[98],"accelerate":[99],"convergence,":[101],"closed-form":[103],"expression":[104],"is":[105,134],"derived":[106],"The":[111],"enjoys":[114],"much":[115],"smaller":[116],"than":[119],"while":[121],"provides":[122],"comparable":[123],"performance.":[124],"Furthermore,":[125],"avoiding":[127],"further":[128],"dividing":[129],"grids,":[131],"superior":[135],"in":[138],"correlated":[140],"scenario.":[142],"Simulations":[143],"are":[144],"carried":[145],"out":[146],"verify":[148],"performance":[150],"our":[152],"method.":[154]},"counts_by_year":[{"year":2020,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
