{"id":"https://openalex.org/W3014229381","doi":"https://doi.org/10.3390/s20071981","title":"A Noise Tolerant Spread Spectrum Sound-Based Local Positioning System for Operating a Quadcopter in a Greenhouse","display_name":"A Noise Tolerant Spread Spectrum Sound-Based Local Positioning System for Operating a Quadcopter in a Greenhouse","publication_year":2020,"publication_date":"2020-04-01","ids":{"openalex":"https://openalex.org/W3014229381","doi":"https://doi.org/10.3390/s20071981","mag":"3014229381","pmid":"https://pubmed.ncbi.nlm.nih.gov/32244828"},"language":"en","primary_location":{"id":"doi:10.3390/s20071981","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s20071981","pdf_url":"https://www.mdpi.com/1424-8220/20/7/1981/pdf?version=1585832111","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1424-8220/20/7/1981/pdf?version=1585832111","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5084804522","display_name":"Zichen Huang","orcid":"https://orcid.org/0000-0003-4053-0201"},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Zichen Huang","raw_affiliation_strings":["Graduate School of Agriculture, Kyoto University, Kyoto 6068502, Japan"],"affiliations":[{"raw_affiliation_string":"Graduate School of Agriculture, Kyoto University, Kyoto 6068502, Japan","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5056876183","display_name":"Lok Wai Jacky Tsay","orcid":null},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Lok Wai Jacky Tsay","raw_affiliation_strings":["Graduate School of Agriculture, Kyoto University, Kyoto 6068502, Japan"],"affiliations":[{"raw_affiliation_string":"Graduate School of Agriculture, Kyoto University, Kyoto 6068502, Japan","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066001700","display_name":"Tomoo Shiigi","orcid":null},"institutions":[{"id":"https://openalex.org/I4210146532","display_name":"National Fisheries University","ror":"https://ror.org/04kkb3773","country_code":"JP","type":"education","lineage":["https://openalex.org/I4210146532"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Tomoo Shiigi","raw_affiliation_strings":["Department of Ocean Mechanical Engineering, National Fisheries University, Shimonoseki 7596595, Japan"],"affiliations":[{"raw_affiliation_string":"Department of Ocean Mechanical Engineering, National Fisheries University, Shimonoseki 7596595, Japan","institution_ids":["https://openalex.org/I4210146532"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5042499967","display_name":"Xunyue Zhao","orcid":null},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Xunyue Zhao","raw_affiliation_strings":["Graduate School of Agriculture, Kyoto University, Kyoto 6068502, Japan"],"affiliations":[{"raw_affiliation_string":"Graduate School of Agriculture, Kyoto University, Kyoto 6068502, Japan","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5105367703","display_name":"Hiroaki Nakanishi","orcid":null},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hiroaki Nakanishi","raw_affiliation_strings":["Graduate School of Engineering, Kyoto University, Kyoto 6158540, Japan"],"affiliations":[{"raw_affiliation_string":"Graduate School of Engineering, Kyoto University, Kyoto 6158540, Japan","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5082054796","display_name":"Tetsuhito Suzuki","orcid":"https://orcid.org/0000-0003-1367-4402"},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tetsuhito Suzuki","raw_affiliation_strings":["Graduate School of Agriculture, Kyoto University, Kyoto 6068502, Japan"],"affiliations":[{"raw_affiliation_string":"Graduate School of Agriculture, Kyoto University, Kyoto 6068502, Japan","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008998498","display_name":"Yuichi Ogawa","orcid":"https://orcid.org/0000-0002-2238-2615"},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yuichi Ogawa","raw_affiliation_strings":["Graduate School of Agriculture, Kyoto University, Kyoto 6068502, Japan"],"affiliations":[{"raw_affiliation_string":"Graduate School of Agriculture, Kyoto University, Kyoto 6068502, Japan","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5079493738","display_name":"Naoshi Kondo","orcid":"https://orcid.org/0000-0001-5010-966X"},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Naoshi Kondo","raw_affiliation_strings":["Graduate School of Agriculture, Kyoto University, Kyoto 6068502, Japan"],"affiliations":[{"raw_affiliation_string":"Graduate School of Agriculture, Kyoto University, Kyoto 6068502, Japan","institution_ids":["https://openalex.org/I22299242"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":8,"corresponding_author_ids":["https://openalex.org/A5066001700","https://openalex.org/A5084804522"],"corresponding_institution_ids":["https://openalex.org/I22299242","https://openalex.org/I4210146532"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2598},"apc_paid":{"value":2400,"currency":"CHF","value_usd":2598},"fwci":0.9337,"has_fulltext":true,"cited_by_count":12,"citation_normalized_percentile":{"value":0.7418357,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"20","issue":"7","first_page":"1981","last_page":"1981"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9998999834060669,"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/T13121","display_name":"Radio Wave Propagation Studies","score":0.9825999736785889,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T11192","display_name":"Underwater Vehicles and Communication Systems","score":0.9790999889373779,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean 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/quadcopter","display_name":"Quadcopter","score":0.9565690159797668},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.7067137360572815},{"id":"https://openalex.org/keywords/time-division-multiple-access","display_name":"Time division multiple access","score":0.5381890535354614},{"id":"https://openalex.org/keywords/greenhouse","display_name":"Greenhouse","score":0.5204610824584961},{"id":"https://openalex.org/keywords/positioning-system","display_name":"Positioning system","score":0.48171931505203247},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4249008297920227},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.39863938093185425},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.37032634019851685},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.34519797563552856},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.09446409344673157},{"id":"https://openalex.org/keywords/aerospace-engineering","display_name":"Aerospace engineering","score":0.08986136317253113}],"concepts":[{"id":"https://openalex.org/C2779199153","wikidata":"https://www.wikidata.org/wiki/Q43965","display_name":"Quadcopter","level":2,"score":0.9565690159797668},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.7067137360572815},{"id":"https://openalex.org/C117313154","wikidata":"https://www.wikidata.org/wiki/Q878344","display_name":"Time division multiple access","level":2,"score":0.5381890535354614},{"id":"https://openalex.org/C32198211","wikidata":"https://www.wikidata.org/wiki/Q165044","display_name":"Greenhouse","level":2,"score":0.5204610824584961},{"id":"https://openalex.org/C2778603505","wikidata":"https://www.wikidata.org/wiki/Q17141406","display_name":"Positioning system","level":3,"score":0.48171931505203247},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4249008297920227},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.39863938093185425},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.37032634019851685},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.34519797563552856},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.09446409344673157},{"id":"https://openalex.org/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.08986136317253113},{"id":"https://openalex.org/C144027150","wikidata":"https://www.wikidata.org/wiki/Q48803","display_name":"Horticulture","level":1,"score":0.0},{"id":"https://openalex.org/C62611344","wikidata":"https://www.wikidata.org/wiki/Q1062658","display_name":"Node (physics)","level":2,"score":0.0},{"id":"https://openalex.org/C66938386","wikidata":"https://www.wikidata.org/wiki/Q633538","display_name":"Structural engineering","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.0}],"mesh":[],"locations_count":5,"locations":[{"id":"doi:10.3390/s20071981","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s20071981","pdf_url":"https://www.mdpi.com/1424-8220/20/7/1981/pdf?version=1585832111","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},{"id":"pmid:32244828","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/32244828","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:doaj.org/article:f5ee5da656e24b60ae2fb5775abfdf53","is_oa":true,"landing_page_url":"https://doaj.org/article/f5ee5da656e24b60ae2fb5775abfdf53","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":"Sensors, Vol 20, Iss 7, p 1981 (2020)","raw_type":"article"},{"id":"pmh:oai:mdpi.com:/1424-8220/20/7/1981/","is_oa":true,"landing_page_url":"http://dx.doi.org/10.3390/s20071981","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:7180864","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/7180864","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors (Basel)","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/s20071981","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s20071981","pdf_url":"https://www.mdpi.com/1424-8220/20/7/1981/pdf?version=1585832111","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Zero hunger","id":"https://metadata.un.org/sdg/2","score":0.7699999809265137}],"awards":[{"id":"https://openalex.org/G1069223013","display_name":null,"funder_award_id":"JSPS KAKENHI","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"},{"id":"https://openalex.org/G1426318481","display_name":null,"funder_award_id":"grant","funder_id":"https://openalex.org/F4320322725","funder_display_name":"China Scholarship Council"},{"id":"https://openalex.org/G2300736770","display_name":null,"funder_award_id":"(CSC)","funder_id":"https://openalex.org/F4320322725","funder_display_name":"China Scholarship Council"},{"id":"https://openalex.org/G4636223006","display_name":null,"funder_award_id":"JSPS KAK","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"},{"id":"https://openalex.org/G7537669788","display_name":null,"funder_award_id":"Scholarship","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"},{"id":"https://openalex.org/G8004225506","display_name":null,"funder_award_id":"18H05364","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"},{"id":"https://openalex.org/G8328143758","display_name":null,"funder_award_id":"18H053","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"},{"id":"https://openalex.org/G8589651859","display_name":null,"funder_award_id":"China","funder_id":"https://openalex.org/F4320322725","funder_display_name":"China Scholarship Council"}],"funders":[{"id":"https://openalex.org/F4320322725","display_name":"China Scholarship Council","ror":"https://ror.org/04atp4p48"},{"id":"https://openalex.org/F4320334764","display_name":"Japan Society for the Promotion of Science","ror":"https://ror.org/00hhkn466"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3014229381.pdf","grobid_xml":"https://content.openalex.org/works/W3014229381.grobid-xml"},"referenced_works_count":36,"referenced_works":["https://openalex.org/W570420286","https://openalex.org/W1481057382","https://openalex.org/W1505761511","https://openalex.org/W1980837783","https://openalex.org/W2022193520","https://openalex.org/W2048690053","https://openalex.org/W2083549819","https://openalex.org/W2089029067","https://openalex.org/W2096780140","https://openalex.org/W2108482152","https://openalex.org/W2133353795","https://openalex.org/W2142206837","https://openalex.org/W2160312307","https://openalex.org/W2164747455","https://openalex.org/W2341319117","https://openalex.org/W2397941095","https://openalex.org/W2462623140","https://openalex.org/W2549917525","https://openalex.org/W2594297985","https://openalex.org/W2604742522","https://openalex.org/W2613565849","https://openalex.org/W2744195175","https://openalex.org/W2748154283","https://openalex.org/W2766339906","https://openalex.org/W2767861487","https://openalex.org/W2768153469","https://openalex.org/W2781528538","https://openalex.org/W2799376431","https://openalex.org/W2890514205","https://openalex.org/W2897886457","https://openalex.org/W2910414734","https://openalex.org/W2956094249","https://openalex.org/W3142977476","https://openalex.org/W6734627499","https://openalex.org/W6745659405","https://openalex.org/W6792432051"],"related_works":["https://openalex.org/W4293056360","https://openalex.org/W4386804942","https://openalex.org/W2334632809","https://openalex.org/W4385318836","https://openalex.org/W2526240748","https://openalex.org/W2966028239","https://openalex.org/W2264340699","https://openalex.org/W2909947097","https://openalex.org/W2295914752","https://openalex.org/W2390516150"],"abstract_inverted_index":{"Quadcopters":[0],"are":[1],"beginning":[2],"to":[3,13,123],"play":[4],"an":[5,175],"important":[6],"role":[7],"in":[8,20,97],"precision":[9],"agriculture.":[10],"In":[11,34,60],"order":[12],"localize":[14],"and":[15,69,82,92,147,162,184],"operate":[16],"the":[17,72,78,84,108,124,132,136,172],"quadcopter":[18,79,103,116,188],"automatically":[19],"complex":[21],"agricultural":[22],"settings,":[23],"such":[24],"as":[25],"a":[26,28,39,48,53,63,98,101,119,141,192],"greenhouse,":[27],"robust":[29,177],"positioning":[30,44,109,142,178],"system":[31,45,110,179],"is":[32,174,181],"needed.":[33],"previous":[35],"research,":[36,62],"we":[37],"developed":[38,68],"spread":[40],"spectrum":[41,75],"sound-based":[42],"local":[43],"(SSSLPS)":[46],"with":[47,100,107],"20":[49],"mm":[50,146,149],"accuracy":[51,143,150],"within":[52,151,191],"30":[54,56],"\u00d7":[55,153],"m":[57,155],"greenhouse":[58,99],"area.":[59],"this":[61],"noise":[64,74,85,117,121,133,182],"tolerant":[65,183],"SSSLPS":[66,137,173],"was":[67,80,95,138],"evaluated.":[70],"First,":[71],"acoustic":[73],"emitted":[76],"by":[77],"documented,":[81],"then":[83],"tolerance":[86,134],"properties":[87,129],"of":[88,135,144],"SSSounds":[89],"were":[90],"examined":[91],"tested.":[93],"This":[94],"done":[96],"fixed":[102],"(9.75":[104],"N":[105],"thrust)":[106],"mounted":[111],"on":[112],"it.":[113],"The":[114,168],"recorded":[115],"had":[118],"broadband":[120],"compared":[122],"SSSound.":[125],"Taking":[126],"these":[127],"SSSound":[128],"into":[130],"account,":[131],"improved,":[139],"achieving":[140],"23.2":[145],"31.6":[148],"12":[152],"6":[154],"for":[156,187],"both":[157],"Time-division":[158],"Multiple":[159,164],"Access":[160,165],"(TDMA)":[161],"Frequency-division":[163],"(FDMA)":[166],"modulation.":[167],"results":[169],"demonstrate":[170],"that":[171,180],"accurate,":[176],"can":[185],"used":[186],"operation":[189],"even":[190],"small":[193],"greenhouse.":[194]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":2}],"updated_date":"2026-03-26T15:22:09.906841","created_date":"2025-10-10T00:00:00"}
