{"id":"https://openalex.org/W2148178782","doi":"https://doi.org/10.1109/iscas.2005.1465112","title":"High-Resolution DOA Estimation by Algebraic Phase Unwrapping Algorithm","display_name":"High-Resolution DOA Estimation by Algebraic Phase Unwrapping Algorithm","publication_year":2005,"publication_date":"2005-07-27","ids":{"openalex":"https://openalex.org/W2148178782","doi":"https://doi.org/10.1109/iscas.2005.1465112","mag":"2148178782"},"language":"en","primary_location":{"id":"doi:10.1109/iscas.2005.1465112","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iscas.2005.1465112","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2005 IEEE International Symposium on Circuits and Systems","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/A5103022814","display_name":"Isao Yamada","orcid":"https://orcid.org/0000-0002-6563-7526"},"institutions":[{"id":"https://openalex.org/I114531698","display_name":"Tokyo Institute of Technology","ror":"https://ror.org/0112mx960","country_code":"JP","type":"education","lineage":["https://openalex.org/I114531698"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"I. Yamada","raw_affiliation_strings":["Department of Communications and Integrated Systems, Tokyo Institute of Technology, Tokyo, Japan"],"affiliations":[{"raw_affiliation_string":"Department of Communications and Integrated Systems, Tokyo Institute of Technology, Tokyo, Japan","institution_ids":["https://openalex.org/I114531698"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5103022814"],"corresponding_institution_ids":["https://openalex.org/I114531698"],"apc_list":null,"apc_paid":null,"fwci":0.3179,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.60778096,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"1","issue":null,"first_page":"2413","last_page":"2416"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10931","display_name":"Direction-of-Arrival Estimation Techniques","score":0.9998000264167786,"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":0.9998000264167786,"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":0.9991999864578247,"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":0.9991000294685364,"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/maxima-and-minima","display_name":"Maxima and minima","score":0.8480031490325928},{"id":"https://openalex.org/keywords/unit-circle","display_name":"Unit circle","score":0.6287026405334473},{"id":"https://openalex.org/keywords/maxima","display_name":"Maxima","score":0.6130003929138184},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.6102153062820435},{"id":"https://openalex.org/keywords/algebraic-number","display_name":"Algebraic number","score":0.560990035533905},{"id":"https://openalex.org/keywords/univariate","display_name":"Univariate","score":0.5491124987602234},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.5434080362319946},{"id":"https://openalex.org/keywords/nonlinear-system","display_name":"Nonlinear system","score":0.45500609278678894},{"id":"https://openalex.org/keywords/sequence","display_name":"Sequence (biology)","score":0.41223737597465515},{"id":"https://openalex.org/keywords/applied-mathematics","display_name":"Applied mathematics","score":0.34991881251335144},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.21885880827903748},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.17583248019218445}],"concepts":[{"id":"https://openalex.org/C186633575","wikidata":"https://www.wikidata.org/wiki/Q845060","display_name":"Maxima and minima","level":2,"score":0.8480031490325928},{"id":"https://openalex.org/C126875415","wikidata":"https://www.wikidata.org/wiki/Q203425","display_name":"Unit circle","level":2,"score":0.6287026405334473},{"id":"https://openalex.org/C91528185","wikidata":"https://www.wikidata.org/wiki/Q520952","display_name":"Maxima","level":3,"score":0.6130003929138184},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.6102153062820435},{"id":"https://openalex.org/C9376300","wikidata":"https://www.wikidata.org/wiki/Q168817","display_name":"Algebraic number","level":2,"score":0.560990035533905},{"id":"https://openalex.org/C199163554","wikidata":"https://www.wikidata.org/wiki/Q1681619","display_name":"Univariate","level":3,"score":0.5491124987602234},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5434080362319946},{"id":"https://openalex.org/C158622935","wikidata":"https://www.wikidata.org/wiki/Q660848","display_name":"Nonlinear system","level":2,"score":0.45500609278678894},{"id":"https://openalex.org/C2778112365","wikidata":"https://www.wikidata.org/wiki/Q3511065","display_name":"Sequence (biology)","level":2,"score":0.41223737597465515},{"id":"https://openalex.org/C28826006","wikidata":"https://www.wikidata.org/wiki/Q33521","display_name":"Applied mathematics","level":1,"score":0.34991881251335144},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.21885880827903748},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.17583248019218445},{"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/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"id":"https://openalex.org/C554144382","wikidata":"https://www.wikidata.org/wiki/Q213156","display_name":"Performance art","level":2,"score":0.0},{"id":"https://openalex.org/C161584116","wikidata":"https://www.wikidata.org/wiki/Q1952580","display_name":"Multivariate statistics","level":2,"score":0.0},{"id":"https://openalex.org/C142362112","wikidata":"https://www.wikidata.org/wiki/Q735","display_name":"Art","level":0,"score":0.0},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C52119013","wikidata":"https://www.wikidata.org/wiki/Q50637","display_name":"Art history","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/iscas.2005.1465112","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iscas.2005.1465112","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2005 IEEE International Symposium on Circuits and Systems","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":19,"referenced_works":["https://openalex.org/W1514558801","https://openalex.org/W1635056622","https://openalex.org/W1952629836","https://openalex.org/W2019833178","https://openalex.org/W2105108073","https://openalex.org/W2107896882","https://openalex.org/W2113638573","https://openalex.org/W2127617367","https://openalex.org/W2128131274","https://openalex.org/W2136172079","https://openalex.org/W2140556092","https://openalex.org/W2141118638","https://openalex.org/W2151669884","https://openalex.org/W2158419709","https://openalex.org/W2163994287","https://openalex.org/W3139866291","https://openalex.org/W3194394486","https://openalex.org/W4234523567","https://openalex.org/W4246991442"],"related_works":["https://openalex.org/W2050191802","https://openalex.org/W2797691919","https://openalex.org/W2160559052","https://openalex.org/W1973781123","https://openalex.org/W181473267","https://openalex.org/W4232457976","https://openalex.org/W2045975061","https://openalex.org/W1835819466","https://openalex.org/W2156081102","https://openalex.org/W125048092"],"abstract_inverted_index":{"A":[0],"common":[1],"strategy":[2],"among":[3],"modern":[4],"high-resolution":[5,103],"direction-of-arrival":[6],"(DOA)":[7],"estimation":[8,17,105],"schemes":[9],"is":[10,114],"their":[11],"systematic":[12],"translation":[13],"from":[14],"the":[15,37,40,66,71,75,89,102,111,118,121,128,132],"DOA":[16,104],"problem":[18,137],"to":[19,64,131],"a":[20,97],"global":[21],"nonlinear":[22,56],"optimization":[23,57],"problem:":[24],"find":[25],"all":[26],"(local)":[27],"minima":[28,79],"or":[29,80],"maxima":[30,81],"of":[31,43,78,88,110,120],"certain":[32],"univariate":[33,48],"functions,":[34],"defined":[35],"as":[36,96],"values":[38],"on":[39,83,117],"unit":[41,72,90],"circle,":[42,73],"carefully":[44],"designed":[45],"complex":[46],"self-reciprocal":[47],"Laurent":[49],"polynomials.":[50],"We":[51],"present,":[52],"for":[53,101,127],"this":[54],"highly":[55],"problem,":[58],"an":[59,84],"algebraic":[60,133],"(finite":[61],"step)":[62],"algorithm":[63,93,113],"compute":[65],"complete":[67],"minima-maxima":[68],"distributions":[69],"along":[70],"i.e.,":[74],"exact":[76,129],"number":[77],"located":[82],"arbitrarily":[85],"chosen":[86],"sub-arc":[87],"circle.":[91],"This":[92],"can":[94],"serve":[95],"powerful":[98],"mathematical":[99],"tool":[100],"problem.":[106],"The":[107],"key":[108],"idea":[109],"proposed":[112],"essentially":[115],"based":[116],"use":[119],"generalized":[122],"Sturm":[123],"sequence":[124],"developed":[125],"originally":[126],"solution":[130],"multidimensional":[134],"phase":[135],"unwrapping":[136],"(Yamada":[138],"I.":[139],"et":[140],"al,":[141],"IEEE":[142],"Trans.":[143],"Sig.":[144],"Process.,":[145],"vol.46,":[146],"p.1639-64,":[147],"1998).":[148]},"counts_by_year":[{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":3}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
