{"id":"https://openalex.org/W1550199317","doi":"https://doi.org/10.1109/lascas.2015.7250439","title":"Signal enhancement for gunshot DOA estimation with median filters","display_name":"Signal enhancement for gunshot DOA estimation with median filters","publication_year":2015,"publication_date":"2015-02-01","ids":{"openalex":"https://openalex.org/W1550199317","doi":"https://doi.org/10.1109/lascas.2015.7250439","mag":"1550199317"},"language":"en","primary_location":{"id":"doi:10.1109/lascas.2015.7250439","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lascas.2015.7250439","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE 6th Latin American Symposium on Circuits & Systems (LASCAS)","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/A5016661127","display_name":"Angelo M.C.R. Borzino","orcid":null},"institutions":[{"id":"https://openalex.org/I41870","display_name":"Military Institute of Engineering","ror":"https://ror.org/03veakt65","country_code":"BR","type":"education","lineage":["https://openalex.org/I41870"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"A. M. C. R. Borzino","raw_affiliation_strings":["Military Institute of Engineering (IME) Programs of Defense","Military Institute of Engineering (IME), Programs of Defense Engineering, Rio de Janeiro, RJ - Brazil"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Military Institute of Engineering (IME) Programs of Defense","institution_ids":["https://openalex.org/I41870"]},{"raw_affiliation_string":"Military Institute of Engineering (IME), Programs of Defense Engineering, Rio de Janeiro, RJ - Brazil","institution_ids":["https://openalex.org/I41870"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5061595221","display_name":"Jos\u00e9 A. Apolin\u00e1rio","orcid":"https://orcid.org/0000-0003-1426-9636"},"institutions":[{"id":"https://openalex.org/I40034438","display_name":"Universidade do Estado do Rio de Janeiro","ror":"https://ror.org/0198v2949","country_code":"BR","type":"education","lineage":["https://openalex.org/I40034438"]},{"id":"https://openalex.org/I41870","display_name":"Military Institute of Engineering","ror":"https://ror.org/03veakt65","country_code":"BR","type":"education","lineage":["https://openalex.org/I41870"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"J. A. Apolinario","raw_affiliation_strings":["Electrical Engineering Rio de Janeiro, RJ, Brazil","Military Institute of Engineering (IME), Programs of Electrical Engineering, Rio de Janeiro, RJ - Brazil"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Electrical Engineering Rio de Janeiro, RJ, Brazil","institution_ids":["https://openalex.org/I40034438"]},{"raw_affiliation_string":"Military Institute of Engineering (IME), Programs of Electrical Engineering, Rio de Janeiro, RJ - Brazil","institution_ids":["https://openalex.org/I41870"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5019302005","display_name":"Marcello L. R. de Campos","orcid":"https://orcid.org/0000-0002-6737-589X"},"institutions":[{"id":"https://openalex.org/I122140584","display_name":"Universidade Federal do Rio de Janeiro","ror":"https://ror.org/03490as77","country_code":"BR","type":"education","lineage":["https://openalex.org/I122140584"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"M. L. R. de Campos","raw_affiliation_strings":["Program of Electrical Engineering, Federal University of Rio de Janeiro (UFRJ), RJ, Brazil","Federal University of Rio de Janeiro (UFRJ), Program of Electrical Engineering, COPPE, Rio de Janeiro, RJ - Brazil"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Program of Electrical Engineering, Federal University of Rio de Janeiro (UFRJ), RJ, Brazil","institution_ids":["https://openalex.org/I122140584"]},{"raw_affiliation_string":"Federal University of Rio de Janeiro (UFRJ), Program of Electrical Engineering, COPPE, Rio de Janeiro, RJ - Brazil","institution_ids":["https://openalex.org/I122140584"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5016720291","display_name":"Luiz W. P. Biscainho","orcid":"https://orcid.org/0000-0003-2959-6963"},"institutions":[{"id":"https://openalex.org/I122140584","display_name":"Universidade Federal do Rio de Janeiro","ror":"https://ror.org/03490as77","country_code":"BR","type":"education","lineage":["https://openalex.org/I122140584"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"L. W. P. Biscainho","raw_affiliation_strings":["Program of Electrical Engineering, Federal University of Rio de Janeiro (UFRJ), RJ, Brazil","Federal University of Rio de Janeiro (UFRJ), Program of Electrical Engineering, COPPE, Rio de Janeiro, RJ - Brazil"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Program of Electrical Engineering, Federal University of Rio de Janeiro (UFRJ), RJ, Brazil","institution_ids":["https://openalex.org/I122140584"]},{"raw_affiliation_string":"Federal University of Rio de Janeiro (UFRJ), Program of Electrical Engineering, COPPE, Rio de Janeiro, RJ - Brazil","institution_ids":["https://openalex.org/I122140584"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.9712,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.71833377,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":97},"biblio":{"volume":"27","issue":null,"first_page":"1","last_page":"4"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":1.0,"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":1.0,"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/T11309","display_name":"Music and Audio Processing","score":0.9995999932289124,"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/T11447","display_name":"Blind Source Separation Techniques","score":0.9951000213623047,"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/computer-science","display_name":"Computer science","score":0.6488016843795776},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.5762895345687866},{"id":"https://openalex.org/keywords/signal","display_name":"SIGNAL (programming language)","score":0.567934513092041},{"id":"https://openalex.org/keywords/microphone","display_name":"Microphone","score":0.5660349130630493},{"id":"https://openalex.org/keywords/microphone-array","display_name":"Microphone array","score":0.5166311860084534},{"id":"https://openalex.org/keywords/harmonic","display_name":"Harmonic","score":0.5011191368103027},{"id":"https://openalex.org/keywords/signal-processing","display_name":"Signal processing","score":0.4965735077857971},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.4854593873023987},{"id":"https://openalex.org/keywords/signal-to-noise-ratio","display_name":"Signal-to-noise ratio (imaging)","score":0.44411173462867737},{"id":"https://openalex.org/keywords/subtraction","display_name":"Subtraction","score":0.4378495514392853},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.4248945415019989},{"id":"https://openalex.org/keywords/digital-signal-processing","display_name":"Digital signal processing","score":0.28599727153778076},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.2649361491203308},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.16959184408187866},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.16935691237449646},{"id":"https://openalex.org/keywords/computer-hardware","display_name":"Computer hardware","score":0.12269145250320435},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.10301649570465088}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6488016843795776},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.5762895345687866},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.567934513092041},{"id":"https://openalex.org/C2778263558","wikidata":"https://www.wikidata.org/wiki/Q46384","display_name":"Microphone","level":3,"score":0.5660349130630493},{"id":"https://openalex.org/C2778806681","wikidata":"https://www.wikidata.org/wiki/Q907293","display_name":"Microphone array","level":4,"score":0.5166311860084534},{"id":"https://openalex.org/C127934551","wikidata":"https://www.wikidata.org/wiki/Q1148098","display_name":"Harmonic","level":2,"score":0.5011191368103027},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.4965735077857971},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.4854593873023987},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.44411173462867737},{"id":"https://openalex.org/C68060419","wikidata":"https://www.wikidata.org/wiki/Q40754","display_name":"Subtraction","level":2,"score":0.4378495514392853},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.4248945415019989},{"id":"https://openalex.org/C84462506","wikidata":"https://www.wikidata.org/wiki/Q173142","display_name":"Digital signal processing","level":2,"score":0.28599727153778076},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.2649361491203308},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.16959184408187866},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.16935691237449646},{"id":"https://openalex.org/C9390403","wikidata":"https://www.wikidata.org/wiki/Q3966","display_name":"Computer hardware","level":1,"score":0.12269145250320435},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.10301649570465088},{"id":"https://openalex.org/C68115822","wikidata":"https://www.wikidata.org/wiki/Q1068172","display_name":"Sound pressure","level":2,"score":0.0},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.0},{"id":"https://openalex.org/C94375191","wikidata":"https://www.wikidata.org/wiki/Q11205","display_name":"Arithmetic","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}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lascas.2015.7250439","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lascas.2015.7250439","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE 6th Latin American Symposium on Circuits & Systems (LASCAS)","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":17,"referenced_works":["https://openalex.org/W1488054016","https://openalex.org/W1519226138","https://openalex.org/W1561135842","https://openalex.org/W1788070522","https://openalex.org/W2001829645","https://openalex.org/W2023004272","https://openalex.org/W2046317813","https://openalex.org/W2093225572","https://openalex.org/W2128653836","https://openalex.org/W2133116442","https://openalex.org/W2133760176","https://openalex.org/W2151979660","https://openalex.org/W2312300625","https://openalex.org/W2585484786","https://openalex.org/W2985963901","https://openalex.org/W6629320481","https://openalex.org/W6633727632"],"related_works":["https://openalex.org/W1879255185","https://openalex.org/W2120442551","https://openalex.org/W2769861442","https://openalex.org/W1980506188","https://openalex.org/W2900122540","https://openalex.org/W4240587264","https://openalex.org/W2011788874","https://openalex.org/W2041060376","https://openalex.org/W2963983801","https://openalex.org/W3119734852"],"abstract_inverted_index":{"The":[0],"estimation":[1,67],"of":[2,5,8,58,65],"the":[3,12,63,81],"direction":[4],"arrival":[6],"(DOA)":[7],"gunshot":[9,59,72],"sounds":[10],"when":[11],"distance":[13],"between":[14],"firing":[15],"and":[16,41],"recording":[17],"sites":[18],"becomes":[19],"large,":[20],"as":[21],"in":[22,44,51],"a":[23,76],"sniper":[24],"scenario,":[25],"tends":[26],"to":[27,38,54,62,86],"be":[28],"degraded":[29],"by":[30,35,75],"low":[31],"signal-to-noise":[32],"ratio.":[33],"Motivated":[34],"its":[36],"ability":[37],"segregate":[39],"harmonic":[40],"percussive":[42],"parts":[43],"music":[45],"processing,":[46],"median":[47],"filtering":[48],"is":[49],"used":[50],"this":[52],"work":[53],"reduce":[55],"noise":[56],"level":[57],"signals":[60,73],"prior":[61],"operation":[64],"DOA":[66],"algorithms.":[68],"Practical":[69],"experiments":[70],"with":[71],"acquired":[74],"microphone":[77],"array":[78],"indicate":[79],"that":[80],"proposed":[82],"pre-processing":[83],"procedure":[84],"leads":[85],"better":[87],"results":[88],"than":[89],"spectral":[90],"subtraction.":[91]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":1}],"updated_date":"2026-08-11T07:18:39.950985","created_date":"2025-10-10T00:00:00"}