{"id":"https://openalex.org/W2158066184","doi":"https://doi.org/10.1109/icassp.1981.1171262","title":"Correction algorithms for extended range echo cancellers","display_name":"Correction algorithms for extended range echo cancellers","publication_year":2005,"publication_date":"2005-03-24","ids":{"openalex":"https://openalex.org/W2158066184","doi":"https://doi.org/10.1109/icassp.1981.1171262","mag":"2158066184"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.1981.1171262","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.1981.1171262","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP '81. IEEE International Conference on Acoustics, Speech, and Signal Processing","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/A5012795797","display_name":"Otakar A. Horna","orcid":null},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"O. Horna","raw_affiliation_strings":["COMSAT Laboratories, Clarksburg, MD, USA"],"affiliations":[{"raw_affiliation_string":"COMSAT Laboratories, Clarksburg, MD, USA","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5012795797"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.20948936,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"6","issue":null,"first_page":"560","last_page":"563"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11233","display_name":"Advanced Adaptive Filtering Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/T11233","display_name":"Advanced Adaptive Filtering Techniques","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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":0.9998999834060669,"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/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9972000122070312,"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/computer-science","display_name":"Computer science","score":0.6902883648872375},{"id":"https://openalex.org/keywords/logarithm","display_name":"Logarithm","score":0.658707857131958},{"id":"https://openalex.org/keywords/finite-impulse-response","display_name":"Finite impulse response","score":0.641243577003479},{"id":"https://openalex.org/keywords/adaptive-filter","display_name":"Adaptive filter","score":0.6031379103660583},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5528337359428406},{"id":"https://openalex.org/keywords/echo","display_name":"Echo (communications protocol)","score":0.49634605646133423},{"id":"https://openalex.org/keywords/impulse-response","display_name":"Impulse response","score":0.49069511890411377},{"id":"https://openalex.org/keywords/convolution","display_name":"Convolution (computer science)","score":0.48433244228363037},{"id":"https://openalex.org/keywords/convergence","display_name":"Convergence (economics)","score":0.4509512782096863},{"id":"https://openalex.org/keywords/telephony","display_name":"Telephony","score":0.4402758479118347},{"id":"https://openalex.org/keywords/teleconference","display_name":"Teleconference","score":0.42429736256599426},{"id":"https://openalex.org/keywords/signal-processing","display_name":"Signal processing","score":0.41371795535087585},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.3945538103580475},{"id":"https://openalex.org/keywords/digital-signal-processing","display_name":"Digital signal processing","score":0.29274773597717285},{"id":"https://openalex.org/keywords/artificial-neural-network","display_name":"Artificial neural network","score":0.17873024940490723},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.16650059819221497},{"id":"https://openalex.org/keywords/computer-hardware","display_name":"Computer hardware","score":0.16220822930335999},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1493540108203888},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.10785868763923645}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6902883648872375},{"id":"https://openalex.org/C39927690","wikidata":"https://www.wikidata.org/wiki/Q11197","display_name":"Logarithm","level":2,"score":0.658707857131958},{"id":"https://openalex.org/C198386975","wikidata":"https://www.wikidata.org/wiki/Q117785","display_name":"Finite impulse response","level":2,"score":0.641243577003479},{"id":"https://openalex.org/C102248274","wikidata":"https://www.wikidata.org/wiki/Q168388","display_name":"Adaptive filter","level":2,"score":0.6031379103660583},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5528337359428406},{"id":"https://openalex.org/C2779426996","wikidata":"https://www.wikidata.org/wiki/Q18389128","display_name":"Echo (communications protocol)","level":2,"score":0.49634605646133423},{"id":"https://openalex.org/C72279823","wikidata":"https://www.wikidata.org/wiki/Q1139726","display_name":"Impulse response","level":2,"score":0.49069511890411377},{"id":"https://openalex.org/C45347329","wikidata":"https://www.wikidata.org/wiki/Q5166604","display_name":"Convolution (computer science)","level":3,"score":0.48433244228363037},{"id":"https://openalex.org/C2777303404","wikidata":"https://www.wikidata.org/wiki/Q759757","display_name":"Convergence (economics)","level":2,"score":0.4509512782096863},{"id":"https://openalex.org/C195358072","wikidata":"https://www.wikidata.org/wiki/Q944584","display_name":"Telephony","level":2,"score":0.4402758479118347},{"id":"https://openalex.org/C126669455","wikidata":"https://www.wikidata.org/wiki/Q1630941","display_name":"Teleconference","level":2,"score":0.42429736256599426},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.41371795535087585},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.3945538103580475},{"id":"https://openalex.org/C84462506","wikidata":"https://www.wikidata.org/wiki/Q173142","display_name":"Digital signal processing","level":2,"score":0.29274773597717285},{"id":"https://openalex.org/C50644808","wikidata":"https://www.wikidata.org/wiki/Q192776","display_name":"Artificial neural network","level":2,"score":0.17873024940490723},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.16650059819221497},{"id":"https://openalex.org/C9390403","wikidata":"https://www.wikidata.org/wiki/Q3966","display_name":"Computer hardware","level":1,"score":0.16220822930335999},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1493540108203888},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.10785868763923645},{"id":"https://openalex.org/C50522688","wikidata":"https://www.wikidata.org/wiki/Q189833","display_name":"Economic growth","level":1,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp.1981.1171262","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.1981.1171262","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP '81. IEEE International Conference on Acoustics, Speech, and Signal Processing","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":8,"referenced_works":["https://openalex.org/W1982178771","https://openalex.org/W2091223891","https://openalex.org/W2133247229","https://openalex.org/W2144174236","https://openalex.org/W2154987070","https://openalex.org/W3096291440","https://openalex.org/W4236087597","https://openalex.org/W6785240440"],"related_works":["https://openalex.org/W2152590879","https://openalex.org/W2120814244","https://openalex.org/W156274020","https://openalex.org/W4388903858","https://openalex.org/W2162312040","https://openalex.org/W2163053524","https://openalex.org/W2133133185","https://openalex.org/W4312799022","https://openalex.org/W167975066","https://openalex.org/W2001917356"],"abstract_inverted_index":{"Adaptive":[0],"finite":[1],"impulse":[2],"response":[3],"filters":[4],"(AFIRF)":[5],"for":[6],"echo":[7],"cancellation":[8],"in":[9,17],"4-":[10],"wire":[11],"telephone":[12],"lines":[13],"and/or":[14],"acoustic":[15],"feedback":[16],"teleconference":[18],"setups":[19],"require":[20],"250":[21],"to":[22,62],"1000":[23],"coefficients":[24],"and":[25,38,41,67],"rapid":[26],"convergence":[27],"with":[28],"highly":[29],"correlated":[30],"speech":[31],"signals.":[32],"This":[33],"paper":[34],"discusses":[35],"several":[36,79],"theoretical":[37],"design":[39],"problems":[40],"possible":[42],"solutions.":[43],"The":[44,81],"signals":[45],"entering":[46],"the":[47,64,75,85],"correction":[48],"processor":[49,88],"are":[50],"decorrelated":[51],"by":[52,73,91],"two":[53],"pseudo-random":[54],"binary":[55],"sequences.":[56],"A":[57],"multiplicative":[58],"algorithm":[59],"is":[60,71,89],"used":[61],"accelerate":[63],"adaptive":[65,68],"process,":[66],"loop":[69],"stability":[70],"enhanced":[72],"averaging":[74],"error":[76],"signal":[77],"over":[78],"samples.":[80],"computational":[82],"speed":[83],"of":[84],"digital":[86],"convolution":[87],"increased":[90],"using":[92],"a":[93],"pseudo-logarithmic":[94],"format.":[95]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}