{"id":"https://openalex.org/W2154842584","doi":"https://doi.org/10.1109/icassp.2003.1201701","title":"Group delay approximation of allpass digital filters by transforming the desired response","display_name":"Group delay approximation of allpass digital filters by transforming the desired response","publication_year":2004,"publication_date":"2004-03-22","ids":{"openalex":"https://openalex.org/W2154842584","doi":"https://doi.org/10.1109/icassp.2003.1201701","mag":"2154842584"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.2003.1201701","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2003.1201701","pdf_url":null,"source":{"id":"https://openalex.org/S4363608982","display_name":"2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03).","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03).","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/A5090634106","display_name":"Takuya Matsunaga","orcid":"https://orcid.org/0000-0001-7813-5982"},"institutions":[{"id":"https://openalex.org/I203951103","display_name":"Keio University","ror":"https://ror.org/02kn6nx58","country_code":"JP","type":"education","lineage":["https://openalex.org/I203951103"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"T. Matsunaga","raw_affiliation_strings":["Department of EEE, Keio University, Yokohama, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of EEE, Keio University, Yokohama, Japan","institution_ids":["https://openalex.org/I203951103"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5090181402","display_name":"Masaaki Ikehara","orcid":"https://orcid.org/0000-0003-3461-1507"},"institutions":[{"id":"https://openalex.org/I203951103","display_name":"Keio University","ror":"https://ror.org/02kn6nx58","country_code":"JP","type":"education","lineage":["https://openalex.org/I203951103"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"M. Ikehara","raw_affiliation_strings":["Department of EEE, Keio University, Yokohama, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of EEE, Keio University, Yokohama, Japan","institution_ids":["https://openalex.org/I203951103"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I203951103"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.23371189,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"1","issue":null,"first_page":"VI","last_page":"393"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11034","display_name":"Digital Filter Design and Implementation","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/T11034","display_name":"Digital Filter Design and Implementation","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/T10323","display_name":"Analog and Mixed-Signal Circuit Design","score":0.995199978351593,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/T11417","display_name":"Advancements in PLL and VCO Technologies","score":0.995199978351593,"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/group-delay-and-phase-delay","display_name":"Group delay and phase delay","score":0.7338353395462036},{"id":"https://openalex.org/keywords/all-pass-filter","display_name":"All-pass filter","score":0.6161072254180908},{"id":"https://openalex.org/keywords/digital-filter","display_name":"Digital filter","score":0.5968882441520691},{"id":"https://openalex.org/keywords/group","display_name":"Group (periodic table)","score":0.5646361112594604},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.5554585456848145},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4901898503303528},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4840768873691559},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4786880612373352},{"id":"https://openalex.org/keywords/filter","display_name":"Filter (signal processing)","score":0.40946176648139954},{"id":"https://openalex.org/keywords/low-pass-filter","display_name":"Low-pass filter","score":0.27188482880592346},{"id":"https://openalex.org/keywords/high-pass-filter","display_name":"High-pass filter","score":0.12097498774528503},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.06555241346359253}],"concepts":[{"id":"https://openalex.org/C123792056","wikidata":"https://www.wikidata.org/wiki/Q365988","display_name":"Group delay and phase delay","level":3,"score":0.7338353395462036},{"id":"https://openalex.org/C47427576","wikidata":"https://www.wikidata.org/wiki/Q1431902","display_name":"All-pass filter","level":5,"score":0.6161072254180908},{"id":"https://openalex.org/C36390408","wikidata":"https://www.wikidata.org/wiki/Q1163067","display_name":"Digital filter","level":3,"score":0.5968882441520691},{"id":"https://openalex.org/C2781311116","wikidata":"https://www.wikidata.org/wiki/Q83306","display_name":"Group (periodic table)","level":2,"score":0.5646361112594604},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.5554585456848145},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4901898503303528},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4840768873691559},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4786880612373352},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.40946176648139954},{"id":"https://openalex.org/C44682112","wikidata":"https://www.wikidata.org/wiki/Q918242","display_name":"Low-pass filter","level":3,"score":0.27188482880592346},{"id":"https://openalex.org/C156137958","wikidata":"https://www.wikidata.org/wiki/Q262754","display_name":"High-pass filter","level":4,"score":0.12097498774528503},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.06555241346359253},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"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/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp.2003.1201701","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2003.1201701","pdf_url":null,"source":{"id":"https://openalex.org/S4363608982","display_name":"2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03).","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03).","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/W1982626493","https://openalex.org/W2006471390","https://openalex.org/W2081281255","https://openalex.org/W2101127805","https://openalex.org/W2104243996","https://openalex.org/W2130658881","https://openalex.org/W2150736972","https://openalex.org/W2154741821","https://openalex.org/W2169507316","https://openalex.org/W6682958490"],"related_works":["https://openalex.org/W2801241616","https://openalex.org/W2108619539","https://openalex.org/W2090898224","https://openalex.org/W2044150516","https://openalex.org/W1535719820","https://openalex.org/W2270159026","https://openalex.org/W201187970","https://openalex.org/W2067000758","https://openalex.org/W4206663444","https://openalex.org/W2002627679"],"abstract_inverted_index":{"In":[0],"this":[1,46],"paper,":[2],"we":[3],"present":[4],"a":[5,24],"new":[6],"design":[7],"method":[8,19],"of":[9],"allpass":[10],"digital":[11],"filters":[12],"with":[13,55],"equiripple":[14,43,49],"group":[15,34],"delay":[16,35],"response.":[17],"This":[18],"is":[20,37,51],"based":[21],"on":[22],"solving":[23],"least":[25],"squares":[26],"solution":[27,50],"iteratively.":[28],"At":[29],"each":[30],"iteration,":[31],"the":[32],"desired":[33],"response":[36],"transformed":[38],"so":[39],"as":[40],"to":[41],"have":[42],"error.":[44],"By":[45],"method,":[47],"an":[48],"obtained":[52],"very":[53],"quickly":[54],"less":[56],"computational":[57],"complexity.":[58]},"counts_by_year":[],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}