{"id":"https://openalex.org/W1579000240","doi":"https://doi.org/10.1109/icdsp.2015.7251960","title":"Off-grid DOA estimation based on noise subspace fitting","display_name":"Off-grid DOA estimation based on noise subspace fitting","publication_year":2015,"publication_date":"2015-07-01","ids":{"openalex":"https://openalex.org/W1579000240","doi":"https://doi.org/10.1109/icdsp.2015.7251960","mag":"1579000240"},"language":"en","primary_location":{"id":"doi:10.1109/icdsp.2015.7251960","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icdsp.2015.7251960","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":"conference-paper","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/A5051009016","display_name":"Huiping Duan","orcid":"https://orcid.org/0000-0002-4454-3440"},"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":"Huiping Duan","raw_affiliation_strings":["School of Electronic Engineering, University of Electronic Science and Technology of China Chengdu, Sichuan, China","School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan, China 611731"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electronic Engineering, University of Electronic Science and Technology of China Chengdu, Sichuan, China","institution_ids":["https://openalex.org/I150229711"]},{"raw_affiliation_string":"School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan, China 611731","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Zhigang Qian","orcid":null},"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":"Zhigang Qian","raw_affiliation_strings":["School of Electronic Engineering, University of Electronic Science and Technology of China Chengdu, Sichuan, China","School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan, China 611731"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electronic Engineering, University of Electronic Science and Technology of China Chengdu, Sichuan, China","institution_ids":["https://openalex.org/I150229711"]},{"raw_affiliation_string":"School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan, China 611731","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100388821","display_name":"Yanyan Wang","orcid":"https://orcid.org/0000-0002-7719-6174"},"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":"Yanyan Wang","raw_affiliation_strings":["School of Electronic Engineering, University of Electronic Science and Technology of China Chengdu, Sichuan, China","School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan, China 611731"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electronic Engineering, University of Electronic Science and Technology of China Chengdu, Sichuan, China","institution_ids":["https://openalex.org/I150229711"]},{"raw_affiliation_string":"School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan, China 611731","institution_ids":["https://openalex.org/I150229711"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I150229711"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"675","last_page":"678"},"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/T10534","display_name":"Structural Health Monitoring Techniques","score":0.9984999895095825,"subfield":{"id":"https://openalex.org/subfields/2205","display_name":"Civil and Structural 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/T10860","display_name":"Speech and Audio Processing","score":0.9984999895095825,"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/subspace-topology","display_name":"Subspace topology","score":0.7580169439315796},{"id":"https://openalex.org/keywords/rectification","display_name":"Rectification","score":0.7379279136657715},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.7243359088897705},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.705886960029602},{"id":"https://openalex.org/keywords/grid","display_name":"Grid","score":0.6487986445426941},{"id":"https://openalex.org/keywords/discretization","display_name":"Discretization","score":0.6449884176254272},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.6155738234519958},{"id":"https://openalex.org/keywords/representation","display_name":"Representation (politics)","score":0.5883648991584778},{"id":"https://openalex.org/keywords/taylor-series","display_name":"Taylor series","score":0.5250125527381897},{"id":"https://openalex.org/keywords/noise-measurement","display_name":"Noise measurement","score":0.41362494230270386},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.3476465344429016},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.34244781732559204},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.30976974964141846},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.22820118069648743},{"id":"https://openalex.org/keywords/noise-reduction","display_name":"Noise reduction","score":0.16429558396339417},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.08616256713867188}],"concepts":[{"id":"https://openalex.org/C32834561","wikidata":"https://www.wikidata.org/wiki/Q660730","display_name":"Subspace topology","level":2,"score":0.7580169439315796},{"id":"https://openalex.org/C50942859","wikidata":"https://www.wikidata.org/wiki/Q4967193","display_name":"Rectification","level":3,"score":0.7379279136657715},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.7243359088897705},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.705886960029602},{"id":"https://openalex.org/C187691185","wikidata":"https://www.wikidata.org/wiki/Q2020720","display_name":"Grid","level":2,"score":0.6487986445426941},{"id":"https://openalex.org/C73000952","wikidata":"https://www.wikidata.org/wiki/Q17007827","display_name":"Discretization","level":2,"score":0.6449884176254272},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.6155738234519958},{"id":"https://openalex.org/C2776359362","wikidata":"https://www.wikidata.org/wiki/Q2145286","display_name":"Representation (politics)","level":3,"score":0.5883648991584778},{"id":"https://openalex.org/C158946198","wikidata":"https://www.wikidata.org/wiki/Q131187","display_name":"Taylor series","level":2,"score":0.5250125527381897},{"id":"https://openalex.org/C29265498","wikidata":"https://www.wikidata.org/wiki/Q7047719","display_name":"Noise measurement","level":3,"score":0.41362494230270386},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.3476465344429016},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.34244781732559204},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.30976974964141846},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.22820118069648743},{"id":"https://openalex.org/C163294075","wikidata":"https://www.wikidata.org/wiki/Q581861","display_name":"Noise reduction","level":2,"score":0.16429558396339417},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.08616256713867188},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.0},{"id":"https://openalex.org/C94625758","wikidata":"https://www.wikidata.org/wiki/Q7163","display_name":"Politics","level":2,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.0},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"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/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","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}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icdsp.2015.7251960","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icdsp.2015.7251960","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":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W1522778945","https://openalex.org/W1978571567","https://openalex.org/W1999867771","https://openalex.org/W2010066971","https://openalex.org/W2028823365","https://openalex.org/W2087494601","https://openalex.org/W2103492569","https://openalex.org/W2103519107","https://openalex.org/W6631271211","https://openalex.org/W6675619758"],"related_works":["https://openalex.org/W2355499516","https://openalex.org/W3210974833","https://openalex.org/W2599000612","https://openalex.org/W2811475781","https://openalex.org/W2094246381","https://openalex.org/W2361137193","https://openalex.org/W2377736761","https://openalex.org/W2353928006","https://openalex.org/W2797910360","https://openalex.org/W2615217538"],"abstract_inverted_index":{"Dictionary":[0],"mismatch":[1],"caused":[2],"by":[3],"finite":[4],"spatial":[5],"discretization":[6],"and":[7,27,51],"off-grid":[8,89],"situation":[9],"leads":[10],"to":[11,46,68,72],"performance":[12,84],"degradation":[13],"in":[14,31],"sparse-representation-based":[15],"direction-of-arrival":[16],"(DOA)":[17],"estimation.":[18],"In":[19],"this":[20],"paper,":[21],"a":[22],"procedure":[23],"implementing":[24],"DOA":[25,82],"estimation":[26,83],"rectification":[28,62],"of":[29],"dictionary":[30,55,61],"an":[32],"alternating":[33],"way":[34],"is":[35,44,64],"designed.":[36],"A":[37],"strategy":[38],"using":[39],"noise":[40],"subspace":[41],"fitting":[42],"(NSF)":[43],"proposed":[45],"estimate":[47],"the":[48,54,60],"direction":[49],"bias":[50],"therewith":[52],"treat":[53],"mismatch.":[56],"Based":[57],"on":[58],"NSF,":[59],"model":[63],"extended":[65],"from":[66],"first-order":[67],"second-order":[69],"Taylor":[70],"approximation":[71],"achieve":[73],"higher":[74],"modeling":[75],"accuracy.":[76],"Simulation":[77],"results":[78],"show":[79],"that":[80],"improved":[81],"can":[85],"be":[86],"achieved":[87],"for":[88],"targets.":[90]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}