{"id":"https://openalex.org/W3162934980","doi":"https://doi.org/10.1109/icassp39728.2021.9414481","title":"Evaluation and Comparison of Three Source Direction-of-Arrival Estimators Using Relative Harmonic Coefficients","display_name":"Evaluation and Comparison of Three Source Direction-of-Arrival Estimators Using Relative Harmonic Coefficients","publication_year":2021,"publication_date":"2021-05-13","ids":{"openalex":"https://openalex.org/W3162934980","doi":"https://doi.org/10.1109/icassp39728.2021.9414481","mag":"3162934980"},"language":"en","primary_location":{"id":"doi:10.1109/icassp39728.2021.9414481","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp39728.2021.9414481","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP 2021 - 2021 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","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/A5012959870","display_name":"Yonggang Hu","orcid":"https://orcid.org/0000-0003-0414-8697"},"institutions":[{"id":"https://openalex.org/I118347636","display_name":"Australian National University","ror":"https://ror.org/019wvm592","country_code":"AU","type":"education","lineage":["https://openalex.org/I118347636"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Yonggang Hu","raw_affiliation_strings":["Audio and Acoustic Signal Processing Group, Australian National University, Canberra, Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Audio and Acoustic Signal Processing Group, Australian National University, Canberra, Australia","institution_ids":["https://openalex.org/I118347636"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058898992","display_name":"Prasanga N. Samarasinghe","orcid":"https://orcid.org/0000-0002-5589-4203"},"institutions":[{"id":"https://openalex.org/I118347636","display_name":"Australian National University","ror":"https://ror.org/019wvm592","country_code":"AU","type":"education","lineage":["https://openalex.org/I118347636"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Prasanga N. Samarasinghe","raw_affiliation_strings":["Audio and Acoustic Signal Processing Group, Australian National University, Canberra, Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Audio and Acoustic Signal Processing Group, Australian National University, Canberra, Australia","institution_ids":["https://openalex.org/I118347636"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5001052072","display_name":"Sharon Gannot","orcid":"https://orcid.org/0000-0002-2885-170X"},"institutions":[{"id":"https://openalex.org/I13955877","display_name":"Bar-Ilan University","ror":"https://ror.org/03kgsv495","country_code":"IL","type":"education","lineage":["https://openalex.org/I13955877"]}],"countries":["IL"],"is_corresponding":false,"raw_author_name":"Sharon Gannot","raw_affiliation_strings":["Faculty of Engineering, Bar-Ilan University, Ramat-Gan, Israel"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Engineering, Bar-Ilan University, Ramat-Gan, Israel","institution_ids":["https://openalex.org/I13955877"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5003018152","display_name":"Thushara D. Abhayapala","orcid":"https://orcid.org/0000-0001-6937-7218"},"institutions":[{"id":"https://openalex.org/I118347636","display_name":"Australian National University","ror":"https://ror.org/019wvm592","country_code":"AU","type":"education","lineage":["https://openalex.org/I118347636"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Thushara D. Abhayapala","raw_affiliation_strings":["Audio and Acoustic Signal Processing Group, Australian National University, Canberra, Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Audio and Acoustic Signal Processing Group, Australian National University, Canberra, Australia","institution_ids":["https://openalex.org/I118347636"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.7721,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.70348798,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"815","last_page":"819"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.9995999932289124,"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/T10860","display_name":"Speech and Audio Processing","score":0.9995999932289124,"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/T10931","display_name":"Direction-of-Arrival Estimation Techniques","score":0.9995999932289124,"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/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic 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/estimator","display_name":"Estimator","score":0.8938099145889282},{"id":"https://openalex.org/keywords/azimuth","display_name":"Azimuth","score":0.5744633078575134},{"id":"https://openalex.org/keywords/direction-of-arrival","display_name":"Direction of arrival","score":0.5559868812561035},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5472835302352905},{"id":"https://openalex.org/keywords/harmonic","display_name":"Harmonic","score":0.5441890358924866},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5361767411231995},{"id":"https://openalex.org/keywords/grid","display_name":"Grid","score":0.5324937701225281},{"id":"https://openalex.org/keywords/hyperparameter-optimization","display_name":"Hyperparameter optimization","score":0.4671836197376251},{"id":"https://openalex.org/keywords/spherical-harmonics","display_name":"Spherical harmonics","score":0.4192817211151123},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.360359787940979},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.334421306848526},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.23727944493293762},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.15577122569084167},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.13727706670761108},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.10776689648628235},{"id":"https://openalex.org/keywords/support-vector-machine","display_name":"Support vector machine","score":0.1021883487701416},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.09016934037208557},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.08218371868133545},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.06426244974136353}],"concepts":[{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.8938099145889282},{"id":"https://openalex.org/C159737794","wikidata":"https://www.wikidata.org/wiki/Q124274","display_name":"Azimuth","level":2,"score":0.5744633078575134},{"id":"https://openalex.org/C172051844","wikidata":"https://www.wikidata.org/wiki/Q5280438","display_name":"Direction of arrival","level":3,"score":0.5559868812561035},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5472835302352905},{"id":"https://openalex.org/C127934551","wikidata":"https://www.wikidata.org/wiki/Q1148098","display_name":"Harmonic","level":2,"score":0.5441890358924866},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5361767411231995},{"id":"https://openalex.org/C187691185","wikidata":"https://www.wikidata.org/wiki/Q2020720","display_name":"Grid","level":2,"score":0.5324937701225281},{"id":"https://openalex.org/C10485038","wikidata":"https://www.wikidata.org/wiki/Q48996162","display_name":"Hyperparameter optimization","level":3,"score":0.4671836197376251},{"id":"https://openalex.org/C3768446","wikidata":"https://www.wikidata.org/wiki/Q877100","display_name":"Spherical harmonics","level":2,"score":0.4192817211151123},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.360359787940979},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.334421306848526},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.23727944493293762},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.15577122569084167},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.13727706670761108},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.10776689648628235},{"id":"https://openalex.org/C12267149","wikidata":"https://www.wikidata.org/wiki/Q282453","display_name":"Support vector machine","level":2,"score":0.1021883487701416},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.09016934037208557},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.08218371868133545},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.06426244974136353},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/icassp39728.2021.9414481","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp39728.2021.9414481","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP 2021 - 2021 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","raw_type":"proceedings-article"},{"id":"pmh:oai:openresearch-repository.anu.edu.au:1885/312413","is_oa":false,"landing_page_url":"http://hdl.handle.net/1885/312413","pdf_url":null,"source":{"id":"https://openalex.org/S4306402539","display_name":"ANU Open Research (Australian National University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I118347636","host_organization_name":"Australian National University","host_organization_lineage":["https://openalex.org/I118347636"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Conference paper"},{"id":"pmh:oai:openresearch-repository.anu.edu.au:1885/733796028","is_oa":false,"landing_page_url":"https://hdl.handle.net/1885/733796028","pdf_url":null,"source":{"id":"https://openalex.org/S4306402539","display_name":"ANU Open Research (Australian National University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I118347636","host_organization_name":"Australian National University","host_organization_lineage":["https://openalex.org/I118347636"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Proceedings - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing","raw_type":"Conference paper"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/12","score":0.47999998927116394,"display_name":"Responsible consumption and production"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320315885","display_name":"Australian Government","ror":"https://ror.org/0314h5y94"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":35,"referenced_works":["https://openalex.org/W115540051","https://openalex.org/W1969299255","https://openalex.org/W1982687260","https://openalex.org/W2034119727","https://openalex.org/W2104617572","https://openalex.org/W2110403504","https://openalex.org/W2117678320","https://openalex.org/W2128562854","https://openalex.org/W2147665979","https://openalex.org/W2149648624","https://openalex.org/W2152632507","https://openalex.org/W2205176333","https://openalex.org/W2213904342","https://openalex.org/W2514127661","https://openalex.org/W2538968649","https://openalex.org/W2745195618","https://openalex.org/W2784289299","https://openalex.org/W2790737378","https://openalex.org/W2804325970","https://openalex.org/W2939592795","https://openalex.org/W2939743271","https://openalex.org/W2985838805","https://openalex.org/W2997721189","https://openalex.org/W2997989584","https://openalex.org/W3007279825","https://openalex.org/W3015758669","https://openalex.org/W3021261768","https://openalex.org/W3094665499","https://openalex.org/W3101115403","https://openalex.org/W3102937397","https://openalex.org/W3105563130","https://openalex.org/W3115508264","https://openalex.org/W6604677257","https://openalex.org/W6682325752","https://openalex.org/W6787289010"],"related_works":["https://openalex.org/W2953665647","https://openalex.org/W2483195039","https://openalex.org/W2048211457","https://openalex.org/W2281797687","https://openalex.org/W2358411735","https://openalex.org/W2379042074","https://openalex.org/W4250650723","https://openalex.org/W2611761074","https://openalex.org/W2358598243","https://openalex.org/W2288323322"],"abstract_inverted_index":{"A":[0],"spherical":[1],"harmonics":[2],"domain":[3],"source":[4,18],"feature":[5],"called":[6],"relative":[7],"harmonic":[8],"coefficients":[9],"(RHC)":[10],"has":[11],"recently":[12],"been":[13],"applied":[14],"to":[15,61,96],"address":[16],"the":[17,47,64,81,100,104],"direction-of-arrival":[19],"(DOA)":[20],"estimation":[21],"problem.":[22],"This":[23],"paper":[24],"presents":[25],"a":[26,39,42,53,72,76],"compact":[27],"evaluation":[28,121],"and":[29,67,91,98,114,122],"comparison":[30,123],"between":[31,124],"two":[32],"existing":[33],"RHC":[34],"based":[35],"DOA":[36,106],"estimators:":[37],"(i)":[38],"method":[40],"using":[41,75],"full":[43],"grid":[44,84],"search":[45,60,79],"over":[46,80],"two-dimensional":[48],"(2-D)":[49],"directional":[50,83],"space,":[51],"(ii)":[52],"decoupled":[54],"estimator":[55,74],"which":[56],"uses":[57],"one-dimensional":[58],"(1-D)":[59],"separately":[62],"localize":[63],"source's":[65],"elevation":[66],"azimuth.":[68],"We":[69],"also":[70],"propose":[71],"new":[73],"gradient":[77],"descent":[78],"2-D":[82],"space.":[85],"Extensive":[86],"experiments":[87],"in":[88],"both":[89],"simulated":[90],"real-life":[92],"environments":[93],"are":[94,117],"conducted":[95],"examine":[97],"analyze":[99],"performance":[101],"of":[102],"all":[103,125],"underlying":[105],"estimators.":[107,126],"Two":[108],"objective":[109],"metrics,":[110],"including":[111],"localization":[112],"accuracy":[113],"algorithm":[115],"complexity,":[116],"adopted":[118],"for":[119],"an":[120]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":3}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
