{"id":"https://openalex.org/W2128627719","doi":"https://doi.org/10.1155/s111086570440417x","title":"Adaptive Window Zero-Crossing-Based Instantaneous Frequency Estimation","display_name":"Adaptive Window Zero-Crossing-Based Instantaneous Frequency Estimation","publication_year":2004,"publication_date":"2004-09-29","ids":{"openalex":"https://openalex.org/W2128627719","doi":"https://doi.org/10.1155/s111086570440417x","mag":"2128627719"},"language":"en","primary_location":{"id":"doi:10.1155/s111086570440417x","is_oa":true,"landing_page_url":"https://doi.org/10.1155/s111086570440417x","pdf_url":"https://asp-eurasipjournals.springeropen.com/counter/pdf/10.1155/S111086570440417X","source":{"id":"https://openalex.org/S35920007","display_name":"EURASIP Journal on Advances in Signal Processing","issn_l":"1687-6172","issn":["1687-6172","1687-6180"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Advances in Signal Processing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://asp-eurasipjournals.springeropen.com/counter/pdf/10.1155/S111086570440417X","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5064705369","display_name":"S. Chandra Sekhar","orcid":null},"institutions":[{"id":"https://openalex.org/I59270414","display_name":"Indian Institute of Science Bangalore","ror":"https://ror.org/04dese585","country_code":"IN","type":"education","lineage":["https://openalex.org/I59270414"]}],"countries":["IN"],"is_corresponding":true,"raw_author_name":"S. Chandra Sekhar","raw_affiliation_strings":["Department of Electrical Communication Engineering, Indian Institute of Science, Bangalore, 560 012, India","Dept. of Electrical Communication Eng., Indian Institute of Science, Bangalore, India#TAB#"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Communication Engineering, Indian Institute of Science, Bangalore, 560 012, India","institution_ids":["https://openalex.org/I59270414"]},{"raw_affiliation_string":"Dept. of Electrical Communication Eng., Indian Institute of Science, Bangalore, India#TAB#","institution_ids":["https://openalex.org/I59270414"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5112130399","display_name":"TV Sreenivas","orcid":null},"institutions":[{"id":"https://openalex.org/I59270414","display_name":"Indian Institute of Science Bangalore","ror":"https://ror.org/04dese585","country_code":"IN","type":"education","lineage":["https://openalex.org/I59270414"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"TV Sreenivas","raw_affiliation_strings":["Department of Electrical Communication Engineering, Indian Institute of Science, Bangalore, 560 012, India","Dept. of Electrical Communication Eng., Indian Institute of Science, Bangalore, India#TAB#"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Communication Engineering, Indian Institute of Science, Bangalore, 560 012, India","institution_ids":["https://openalex.org/I59270414"]},{"raw_affiliation_string":"Dept. of Electrical Communication Eng., Indian Institute of Science, Bangalore, India#TAB#","institution_ids":["https://openalex.org/I59270414"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5064705369"],"corresponding_institution_ids":["https://openalex.org/I59270414"],"apc_list":{"value":1140,"currency":"GBP","value_usd":1398},"apc_paid":{"value":1140,"currency":"GBP","value_usd":1398},"fwci":2.6301,"has_fulltext":true,"cited_by_count":28,"citation_normalized_percentile":{"value":0.9031988,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"2004","issue":"12","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10220","display_name":"Machine Fault Diagnosis Techniques","score":0.996999979019165,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10220","display_name":"Machine Fault Diagnosis Techniques","score":0.996999979019165,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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/T12300","display_name":"Advanced Electrical Measurement Techniques","score":0.9948999881744385,"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"}},{"id":"https://openalex.org/T11447","display_name":"Blind Source Separation Techniques","score":0.9941999912261963,"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/estimator","display_name":"Estimator","score":0.7145379781723022},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.6530044078826904},{"id":"https://openalex.org/keywords/zero-crossing","display_name":"Zero crossing","score":0.6185619831085205},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.6113137602806091},{"id":"https://openalex.org/keywords/polynomial","display_name":"Polynomial","score":0.5802962779998779},{"id":"https://openalex.org/keywords/instantaneous-phase","display_name":"Instantaneous phase","score":0.5765163898468018},{"id":"https://openalex.org/keywords/a-priori-and-a-posteriori","display_name":"A priori and a posteriori","score":0.5449246168136597},{"id":"https://openalex.org/keywords/intersection","display_name":"Intersection (aeronautics)","score":0.5145589709281921},{"id":"https://openalex.org/keywords/mean-squared-error","display_name":"Mean squared error","score":0.4583631455898285},{"id":"https://openalex.org/keywords/signal","display_name":"SIGNAL (programming language)","score":0.4403851330280304},{"id":"https://openalex.org/keywords/adaptive-filter","display_name":"Adaptive filter","score":0.43856915831565857},{"id":"https://openalex.org/keywords/window","display_name":"Window (computing)","score":0.43283745646476746},{"id":"https://openalex.org/keywords/adaptive-algorithm","display_name":"Adaptive algorithm","score":0.4202459156513214},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.28551551699638367},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.2548152804374695},{"id":"https://openalex.org/keywords/filter","display_name":"Filter (signal processing)","score":0.10757654905319214},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.09960028529167175}],"concepts":[{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.7145379781723022},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.6530044078826904},{"id":"https://openalex.org/C120415902","wikidata":"https://www.wikidata.org/wiki/Q462383","display_name":"Zero crossing","level":3,"score":0.6185619831085205},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.6113137602806091},{"id":"https://openalex.org/C90119067","wikidata":"https://www.wikidata.org/wiki/Q43260","display_name":"Polynomial","level":2,"score":0.5802962779998779},{"id":"https://openalex.org/C137798554","wikidata":"https://www.wikidata.org/wiki/Q6038852","display_name":"Instantaneous phase","level":3,"score":0.5765163898468018},{"id":"https://openalex.org/C75553542","wikidata":"https://www.wikidata.org/wiki/Q178161","display_name":"A priori and a posteriori","level":2,"score":0.5449246168136597},{"id":"https://openalex.org/C64543145","wikidata":"https://www.wikidata.org/wiki/Q162942","display_name":"Intersection (aeronautics)","level":2,"score":0.5145589709281921},{"id":"https://openalex.org/C139945424","wikidata":"https://www.wikidata.org/wiki/Q1940696","display_name":"Mean squared error","level":2,"score":0.4583631455898285},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.4403851330280304},{"id":"https://openalex.org/C102248274","wikidata":"https://www.wikidata.org/wiki/Q168388","display_name":"Adaptive filter","level":2,"score":0.43856915831565857},{"id":"https://openalex.org/C2778751112","wikidata":"https://www.wikidata.org/wiki/Q835016","display_name":"Window (computing)","level":2,"score":0.43283745646476746},{"id":"https://openalex.org/C2776003309","wikidata":"https://www.wikidata.org/wiki/Q1988072","display_name":"Adaptive algorithm","level":2,"score":0.4202459156513214},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.28551551699638367},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.2548152804374695},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.10757654905319214},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.09960028529167175},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"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/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"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/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"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/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.0},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.0},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1155/s111086570440417x","is_oa":true,"landing_page_url":"https://doi.org/10.1155/s111086570440417x","pdf_url":"https://asp-eurasipjournals.springeropen.com/counter/pdf/10.1155/S111086570440417X","source":{"id":"https://openalex.org/S35920007","display_name":"EURASIP Journal on Advances in Signal Processing","issn_l":"1687-6172","issn":["1687-6172","1687-6180"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Advances in Signal Processing","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:beb981db50864cbb9e399ebe155c84a1","is_oa":true,"landing_page_url":"https://doaj.org/article/beb981db50864cbb9e399ebe155c84a1","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"EURASIP Journal on Advances in Signal Processing, Vol 2004, Iss 12, p 249858 (2004)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1155/s111086570440417x","is_oa":true,"landing_page_url":"https://doi.org/10.1155/s111086570440417x","pdf_url":"https://asp-eurasipjournals.springeropen.com/counter/pdf/10.1155/S111086570440417X","source":{"id":"https://openalex.org/S35920007","display_name":"EURASIP Journal on Advances in Signal Processing","issn_l":"1687-6172","issn":["1687-6172","1687-6180"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Advances in Signal Processing","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320310071","display_name":"Indian Institute of Science","ror":"https://ror.org/04dese585"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2128627719.pdf","grobid_xml":"https://content.openalex.org/works/W2128627719.grobid-xml"},"referenced_works_count":35,"referenced_works":["https://openalex.org/W1507065024","https://openalex.org/W1528176576","https://openalex.org/W1581066745","https://openalex.org/W1597732836","https://openalex.org/W1766888123","https://openalex.org/W1836310912","https://openalex.org/W1965392255","https://openalex.org/W2016811062","https://openalex.org/W2042732685","https://openalex.org/W2044650918","https://openalex.org/W2058973663","https://openalex.org/W2069501481","https://openalex.org/W2085085647","https://openalex.org/W2096246522","https://openalex.org/W2100729628","https://openalex.org/W2103462854","https://openalex.org/W2112247529","https://openalex.org/W2114537326","https://openalex.org/W2123063325","https://openalex.org/W2125534795","https://openalex.org/W2127534965","https://openalex.org/W2158617925","https://openalex.org/W2164549078","https://openalex.org/W2169791062","https://openalex.org/W2188563164","https://openalex.org/W2332483957","https://openalex.org/W2478884216","https://openalex.org/W2798333393","https://openalex.org/W2924212870","https://openalex.org/W3094114204","https://openalex.org/W4233159434","https://openalex.org/W4247273785","https://openalex.org/W4300956496","https://openalex.org/W6676618772","https://openalex.org/W6991026230"],"related_works":["https://openalex.org/W2369346479","https://openalex.org/W2052015941","https://openalex.org/W2679939711","https://openalex.org/W2189195857","https://openalex.org/W2276435569","https://openalex.org/W1998353256","https://openalex.org/W4380605581","https://openalex.org/W2085953673","https://openalex.org/W1859551958","https://openalex.org/W2144530466"],"abstract_inverted_index":{"We":[0,28],"address":[1],"the":[2,23,26,48,52,59,72,78,82,103,124,130],"problem":[3],"of":[4,9,17,25,47,54,77,81,105,107],"estimating":[5],"instantaneous":[6],"frequency":[7],"(IF)":[8],"a":[10,40,44,75,88,120],"real-valued":[11],"constant":[12],"amplitude":[13],"time-varying":[14],"sinusoid.":[15],"Estimation":[16],"polynomial":[18],"IF":[19,35,83,134,155],"is":[20,74,94,137,144],"formulated":[21,95],"using":[22,39,96],"zero-crossings":[24],"signal.":[27,49],"propose":[29],"an":[30,91,97],"algorithm":[31,112],"to":[32,57,139],"estimate":[33],"nonpolynomial":[34],"by":[36,69],"local":[37],"approximation":[38],"low-order":[41],"polynomial,":[42],"over":[43],"short":[45],"segment":[46],"This":[50],"involves":[51],"choice":[53],"window":[55,66,99,132,141],"length":[56,67],"minimize":[58],"mean":[60],"square":[61],"error":[62],"(MSE).":[63],"The":[64,110],"optimal":[65],"found":[68],"directly":[70],"minimizing":[71],"MSE":[73],"function":[76],"higher-order":[79],"derivatives":[80],"which":[84],"are":[85],"not":[86],"available":[87],"priori.":[89],"However,":[90],"optimum":[92],"solution":[93],"adaptive":[98,111,131,148,151],"technique":[100],"based":[101],"on":[102],"concept":[104],"intersection":[106],"confidence":[108],"intervals.":[109],"enables":[113],"minimum":[114],"MSE-IF":[115],"(MMSE-IF)":[116],"estimation":[117,135],"without":[118],"requiring":[119],"priori":[121],"information":[122],"about":[123],"IF.":[125],"Simulation":[126],"results":[127],"show":[128],"that":[129],"zero-crossing-based":[133],"method":[136],"superior":[138],"fixed":[140],"methods":[142],"and":[143,150],"also":[145],"better":[146],"than":[147],"spectrogram":[149],"Wigner-Ville":[152],"distribution":[153],"(WVD)-based":[154],"estimators":[156],"for":[157],"different":[158],"signal-to-noise":[159],"ratio":[160],"(SNR).":[161]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":2},{"year":2015,"cited_by_count":1},{"year":2013,"cited_by_count":2}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}
