{"id":"https://openalex.org/W4386763544","doi":"https://doi.org/10.1109/waspaa58266.2023.10248163","title":"Design of Frequency-Invariant Beamformers with Sparse Concentric Circular Arrays","display_name":"Design of Frequency-Invariant Beamformers with Sparse Concentric Circular Arrays","publication_year":2023,"publication_date":"2023-09-15","ids":{"openalex":"https://openalex.org/W4386763544","doi":"https://doi.org/10.1109/waspaa58266.2023.10248163"},"language":"en","primary_location":{"id":"doi:10.1109/waspaa58266.2023.10248163","is_oa":false,"landing_page_url":"https://doi.org/10.1109/waspaa58266.2023.10248163","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2023 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA)","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/A5057108903","display_name":"Yaakov Buchris","orcid":"https://orcid.org/0000-0002-7975-8812"},"institutions":[{"id":"https://openalex.org/I174306211","display_name":"Technion \u2013 Israel Institute of Technology","ror":"https://ror.org/03qryx823","country_code":"IL","type":"education","lineage":["https://openalex.org/I174306211"]}],"countries":["IL"],"is_corresponding":false,"raw_author_name":"Yaakov Buchris","raw_affiliation_strings":["Israel Institute of Technology, Technion City,Andrew and Erna Viterbi Faculty of Electrical and Computer Engineering Technion,Haifa,Israel,3200003"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Israel Institute of Technology, Technion City,Andrew and Erna Viterbi Faculty of Electrical and Computer Engineering Technion,Haifa,Israel,3200003","institution_ids":["https://openalex.org/I174306211"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080194185","display_name":"Israel Cohen","orcid":"https://orcid.org/0000-0002-2556-3972"},"institutions":[{"id":"https://openalex.org/I174306211","display_name":"Technion \u2013 Israel Institute of Technology","ror":"https://ror.org/03qryx823","country_code":"IL","type":"education","lineage":["https://openalex.org/I174306211"]}],"countries":["IL"],"is_corresponding":false,"raw_author_name":"Israel Cohen","raw_affiliation_strings":["Israel Institute of Technology, Technion City,Andrew and Erna Viterbi Faculty of Electrical and Computer Engineering Technion,Haifa,Israel,3200003"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Israel Institute of Technology, Technion City,Andrew and Erna Viterbi Faculty of Electrical and Computer Engineering Technion,Haifa,Israel,3200003","institution_ids":["https://openalex.org/I174306211"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5086223829","display_name":"Alon Amar","orcid":"https://orcid.org/0000-0002-4081-2359"},"institutions":[{"id":"https://openalex.org/I174306211","display_name":"Technion \u2013 Israel Institute of Technology","ror":"https://ror.org/03qryx823","country_code":"IL","type":"education","lineage":["https://openalex.org/I174306211"]}],"countries":["IL"],"is_corresponding":false,"raw_author_name":"Alon Amar","raw_affiliation_strings":["Israel Institute of Technology, Technion City,Andrew and Erna Viterbi Faculty of Electrical and Computer Engineering Technion,Haifa,Israel,3200003"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Israel Institute of Technology, Technion City,Andrew and Erna Viterbi Faculty of Electrical and Computer Engineering Technion,Haifa,Israel,3200003","institution_ids":["https://openalex.org/I174306211"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I174306211"],"apc_list":null,"apc_paid":null,"fwci":1.2083,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.81865042,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.9997000098228455,"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":0.9997000098228455,"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":0.9986000061035156,"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":0.9962999820709229,"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/azimuth","display_name":"Azimuth","score":0.7312673926353455},{"id":"https://openalex.org/keywords/invariant","display_name":"Invariant (physics)","score":0.6583865880966187},{"id":"https://openalex.org/keywords/broadband","display_name":"Broadband","score":0.6044420003890991},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5909484028816223},{"id":"https://openalex.org/keywords/directivity","display_name":"Directivity","score":0.578327476978302},{"id":"https://openalex.org/keywords/concentric","display_name":"Concentric","score":0.43180835247039795},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.41343924403190613},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.3610146641731262},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.23864200711250305},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.12489569187164307},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1051250696182251}],"concepts":[{"id":"https://openalex.org/C159737794","wikidata":"https://www.wikidata.org/wiki/Q124274","display_name":"Azimuth","level":2,"score":0.7312673926353455},{"id":"https://openalex.org/C190470478","wikidata":"https://www.wikidata.org/wiki/Q2370229","display_name":"Invariant (physics)","level":2,"score":0.6583865880966187},{"id":"https://openalex.org/C509933004","wikidata":"https://www.wikidata.org/wiki/Q194163","display_name":"Broadband","level":2,"score":0.6044420003890991},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5909484028816223},{"id":"https://openalex.org/C189039984","wikidata":"https://www.wikidata.org/wiki/Q8225412","display_name":"Directivity","level":3,"score":0.578327476978302},{"id":"https://openalex.org/C90296322","wikidata":"https://www.wikidata.org/wiki/Q619776","display_name":"Concentric","level":2,"score":0.43180835247039795},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.41343924403190613},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.3610146641731262},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.23864200711250305},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.12489569187164307},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1051250696182251},{"id":"https://openalex.org/C37914503","wikidata":"https://www.wikidata.org/wiki/Q156495","display_name":"Mathematical physics","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/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/waspaa58266.2023.10248163","is_oa":false,"landing_page_url":"https://doi.org/10.1109/waspaa58266.2023.10248163","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2023 IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.49000000953674316}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":30,"referenced_works":["https://openalex.org/W1898225171","https://openalex.org/W1967895044","https://openalex.org/W1986737571","https://openalex.org/W2000789649","https://openalex.org/W2015580348","https://openalex.org/W2025207559","https://openalex.org/W2039624997","https://openalex.org/W2062094868","https://openalex.org/W2066504017","https://openalex.org/W2081472029","https://openalex.org/W2087946897","https://openalex.org/W2098295417","https://openalex.org/W2099244815","https://openalex.org/W2101572791","https://openalex.org/W2125967891","https://openalex.org/W2148692373","https://openalex.org/W2154661438","https://openalex.org/W2159702040","https://openalex.org/W2160372232","https://openalex.org/W2161388130","https://openalex.org/W2279273415","https://openalex.org/W2295905273","https://openalex.org/W2499102192","https://openalex.org/W2779849652","https://openalex.org/W2901335737","https://openalex.org/W2920845141","https://openalex.org/W3012515545","https://openalex.org/W3154244444","https://openalex.org/W4280519293","https://openalex.org/W4289689411"],"related_works":["https://openalex.org/W311048662","https://openalex.org/W2093014812","https://openalex.org/W2077427525","https://openalex.org/W3197387803","https://openalex.org/W2541827971","https://openalex.org/W3154535329","https://openalex.org/W2357540709","https://openalex.org/W2076381755","https://openalex.org/W4255374748","https://openalex.org/W4367280026"],"abstract_inverted_index":{"Frequency-invariant":[0],"(FI)":[1],"beamformers":[2,28,51],"are":[3],"used":[4],"in":[5,101],"audio":[6],"and":[7,71,83,98,106,113],"acoustic":[8],"applications":[9],"to":[10],"enhance":[11],"broadband":[12],"signals":[13],"with":[14,52],"possibly":[15],"varying":[16],"angles":[17],"of":[18,21,33,68,92,103],"arrival.":[19],"One":[20],"the":[22,66,75,90,93],"main":[23],"challenges":[24],"is":[25],"designing":[26],"such":[27],"using":[29],"a":[30,45],"small":[31],"number":[32,67],"sensors":[34,70],"while":[35,73],"still":[36],"performing":[37],"well":[38],"under":[39,110],"adverse":[40],"conditions.":[41],"This":[42],"paper":[43],"introduces":[44],"new":[46],"design":[47,62,97],"approach":[48],"for":[49,80],"FI":[50,99],"sparse":[53,95],"concentric":[54],"circular":[55],"arrays.":[56],"We":[57],"propose":[58],"an":[59],"iterative":[60],"greedy":[61],"that":[63],"optimizes":[64],"both":[65],"required":[69],"rings":[72],"preserving":[74],"predefined":[76],"directivity":[77],"pattern\u2019s":[78],"properties":[79],"different":[81],"frequencies":[82],"azimuthal":[84],"steering":[85],"directions.":[86],"Experimental":[87],"results":[88],"demonstrate":[89],"benefits":[91],"proposed":[94],"sensor":[96],"beamformer":[100],"terms":[102],"array":[104],"gain":[105],"rotationally":[107],"invariant":[108],"beampattern,":[109],"limited":[111],"computational":[112],"hardware":[114],"constraints.":[115]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2024,"cited_by_count":4}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}