{"id":"https://openalex.org/W1642482767","doi":"https://doi.org/10.1109/icassp.1985.1168468","title":"Omnidirectional coded planar loudspeaker arrays","display_name":"Omnidirectional coded planar loudspeaker arrays","publication_year":2005,"publication_date":"2005-03-23","ids":{"openalex":"https://openalex.org/W1642482767","doi":"https://doi.org/10.1109/icassp.1985.1168468","mag":"1642482767"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.1985.1168468","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.1985.1168468","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP '85. 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/A5089197443","display_name":"Said E. El\u2010Khamy","orcid":"https://orcid.org/0000-0002-5582-3827"},"institutions":[{"id":"https://openalex.org/I185163786","display_name":"King Abdulaziz University","ror":"https://ror.org/02ma4wv74","country_code":"SA","type":"education","lineage":["https://openalex.org/I185163786"]},{"id":"https://openalex.org/I84524832","display_name":"Alexandria University","ror":"https://ror.org/00mzz1w90","country_code":"EG","type":"education","lineage":["https://openalex.org/I84524832"]}],"countries":["EG","SA"],"is_corresponding":true,"raw_author_name":"S. El-Khamy","raw_affiliation_strings":["Department of Electrical Engineering, FFaculty of Engineering, Alexandria University, Alexandria, Egypt","Department of Electrical Engineering, King AbdulAziz University, Jeddah, Saudi Arabia"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, FFaculty of Engineering, Alexandria University, Alexandria, Egypt","institution_ids":["https://openalex.org/I84524832"]},{"raw_affiliation_string":"Department of Electrical Engineering, King AbdulAziz University, Jeddah, Saudi Arabia","institution_ids":["https://openalex.org/I185163786"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5014691702","display_name":"O.A. Abdel-Alim","orcid":null},"institutions":[{"id":"https://openalex.org/I84524832","display_name":"Alexandria University","ror":"https://ror.org/00mzz1w90","country_code":"EG","type":"education","lineage":["https://openalex.org/I84524832"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"O. Abdel-Alim","raw_affiliation_strings":["Department of Electrical Engineering, FFaculty of Engineering, Alexandria University, Alexandria, Egypt"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, FFaculty of Engineering, Alexandria University, Alexandria, Egypt","institution_ids":["https://openalex.org/I84524832"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5089197443"],"corresponding_institution_ids":["https://openalex.org/I185163786","https://openalex.org/I84524832"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.07458306,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"10","issue":null,"first_page":"588","last_page":"591"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11698","display_name":"Underwater Acoustics Research","score":0.9970999956130981,"subfield":{"id":"https://openalex.org/subfields/1910","display_name":"Oceanography"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11698","display_name":"Underwater Acoustics Research","score":0.9970999956130981,"subfield":{"id":"https://openalex.org/subfields/1910","display_name":"Oceanography"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.9954000115394592,"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/T10901","display_name":"Advanced Data Compression Techniques","score":0.9908000230789185,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/omnidirectional-antenna","display_name":"Omnidirectional antenna","score":0.8559249043464661},{"id":"https://openalex.org/keywords/loudspeaker","display_name":"Loudspeaker","score":0.750565767288208},{"id":"https://openalex.org/keywords/huffman-coding","display_name":"Huffman coding","score":0.6762681603431702},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6262625455856323},{"id":"https://openalex.org/keywords/binary-number","display_name":"Binary number","score":0.48137786984443665},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.4791371524333954},{"id":"https://openalex.org/keywords/planar","display_name":"Planar","score":0.47526901960372925},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.26383793354034424},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.24586611986160278},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.24521616101264954},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1907428801059723},{"id":"https://openalex.org/keywords/arithmetic","display_name":"Arithmetic","score":0.12910348176956177},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.12457063794136047},{"id":"https://openalex.org/keywords/data-compression","display_name":"Data compression","score":0.1073918342590332},{"id":"https://openalex.org/keywords/computer-graphics","display_name":"Computer graphics (images)","score":0.09124183654785156}],"concepts":[{"id":"https://openalex.org/C24027999","wikidata":"https://www.wikidata.org/wiki/Q2176348","display_name":"Omnidirectional antenna","level":3,"score":0.8559249043464661},{"id":"https://openalex.org/C157138929","wikidata":"https://www.wikidata.org/wiki/Q570","display_name":"Loudspeaker","level":2,"score":0.750565767288208},{"id":"https://openalex.org/C46900642","wikidata":"https://www.wikidata.org/wiki/Q2647","display_name":"Huffman coding","level":3,"score":0.6762681603431702},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6262625455856323},{"id":"https://openalex.org/C48372109","wikidata":"https://www.wikidata.org/wiki/Q3913","display_name":"Binary number","level":2,"score":0.48137786984443665},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.4791371524333954},{"id":"https://openalex.org/C134786449","wikidata":"https://www.wikidata.org/wiki/Q3391255","display_name":"Planar","level":2,"score":0.47526901960372925},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.26383793354034424},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.24586611986160278},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.24521616101264954},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1907428801059723},{"id":"https://openalex.org/C94375191","wikidata":"https://www.wikidata.org/wiki/Q11205","display_name":"Arithmetic","level":1,"score":0.12910348176956177},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.12457063794136047},{"id":"https://openalex.org/C78548338","wikidata":"https://www.wikidata.org/wiki/Q2493","display_name":"Data compression","level":2,"score":0.1073918342590332},{"id":"https://openalex.org/C121684516","wikidata":"https://www.wikidata.org/wiki/Q7600677","display_name":"Computer graphics (images)","level":1,"score":0.09124183654785156}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp.1985.1168468","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.1985.1168468","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP '85. IEEE International Conference on Acoustics, Speech, and Signal Processing","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Life below water","id":"https://metadata.un.org/sdg/14","score":0.7799999713897705}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":2,"referenced_works":["https://openalex.org/W1906640945","https://openalex.org/W1988669296"],"related_works":["https://openalex.org/W2545798066","https://openalex.org/W2385145472","https://openalex.org/W2351541234","https://openalex.org/W1969439651","https://openalex.org/W2013108665","https://openalex.org/W2259411108","https://openalex.org/W2106386991","https://openalex.org/W2966095942","https://openalex.org/W1968719814","https://openalex.org/W1524010526"],"abstract_inverted_index":{"The":[0,42,74],"feeding":[1,59],"of":[2,9],"loudspeaker":[3],"arrays":[4],"according":[5],"to":[6,15,37,48],"special":[7],"codes":[8,27,62,69],"the":[10,39],"Huffman":[11],"type":[12],"in":[13,23,50,79],"order":[14],"obtain":[16],"almost":[17],"omnidirectional":[18,53],"intensity":[19,44],"patterns":[20,45,54],"is":[21],"investigated":[22],"this":[24],"paper.":[25],"These":[26],"are":[28,35,46],"nonbinary":[29],"and":[30,66,85],"only":[31],"six":[32],"discrete":[33],"levels":[34],"allowed":[36],"simplify":[38],"array":[40],"design.":[41],"corresponding":[43],"shown":[47],"result":[49],"much":[51],"better":[52],"than":[55],"those":[56],"resulting":[57],"by":[58],"with":[60],"Barker":[61],"or":[63],"other":[64],"trial":[65],"error":[67],"binary":[68],"that":[70],"were":[71],"introduced":[72],"recently.":[73],"results":[75],"have":[76],"direct":[77],"applications":[78],"underwater":[80],"arrays,":[81],"public":[82],"address":[83],"systems":[84],"accoustical":[86],"measuring":[87],"systems.":[88]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}