{"id":"https://openalex.org/W4200204364","doi":"https://doi.org/10.1109/ispacs51563.2021.9651044","title":"IMFs and RF energy distribution characteristic analysis of blue whale vocalizations","display_name":"IMFs and RF energy distribution characteristic analysis of blue whale vocalizations","publication_year":2021,"publication_date":"2021-11-16","ids":{"openalex":"https://openalex.org/W4200204364","doi":"https://doi.org/10.1109/ispacs51563.2021.9651044"},"language":"en","primary_location":{"id":"doi:10.1109/ispacs51563.2021.9651044","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ispacs51563.2021.9651044","pdf_url":null,"source":{"id":"https://openalex.org/S4363605678","display_name":"2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","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":"2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","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/A5032236735","display_name":"Chai-Sheng Wen","orcid":null},"institutions":[{"id":"https://openalex.org/I153512688","display_name":"National Taiwan Ocean University","ror":"https://ror.org/03bvvnt49","country_code":"TW","type":"education","lineage":["https://openalex.org/I153512688"]}],"countries":["TW"],"is_corresponding":true,"raw_author_name":"Chai-Sheng Wen","raw_affiliation_strings":["Department of Electrical Engineering, National Taiwan Ocean University, Keelung City, Taiwan"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, National Taiwan Ocean University, Keelung City, Taiwan","institution_ids":["https://openalex.org/I153512688"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101892204","display_name":"Chin\u2010Feng Lin","orcid":"https://orcid.org/0000-0002-3006-5839"},"institutions":[{"id":"https://openalex.org/I153512688","display_name":"National Taiwan Ocean University","ror":"https://ror.org/03bvvnt49","country_code":"TW","type":"education","lineage":["https://openalex.org/I153512688"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Chin-Feng Lin","raw_affiliation_strings":["Department of Electrical Engineering, National Taiwan Ocean University, Keelung City, Taiwan"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, National Taiwan Ocean University, Keelung City, Taiwan","institution_ids":["https://openalex.org/I153512688"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5003446315","display_name":"Shun\u2010Hsyung Chang","orcid":"https://orcid.org/0000-0002-9836-3234"},"institutions":[{"id":"https://openalex.org/I4387154394","display_name":"National Kaohsiung University of Science and Technology","ror":"https://ror.org/00hfj7g70","country_code":null,"type":"education","lineage":["https://openalex.org/I4387154394"]},{"id":"https://openalex.org/I118692353","display_name":"University of Science and Technology","ror":"https://ror.org/05bj7sh33","country_code":"YE","type":"education","lineage":["https://openalex.org/I118692353"]}],"countries":["YE"],"is_corresponding":false,"raw_author_name":"Shun-Hsyung Chang","raw_affiliation_strings":["Department of Microeletronic Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City"],"affiliations":[{"raw_affiliation_string":"Department of Microeletronic Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City","institution_ids":["https://openalex.org/I118692353","https://openalex.org/I4387154394","https://openalex.org/I4387154394"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5032236735"],"corresponding_institution_ids":["https://openalex.org/I153512688"],"apc_list":null,"apc_paid":null,"fwci":0.6095,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.61349693,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"454","issue":null,"first_page":"1","last_page":"2"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11698","display_name":"Underwater Acoustics Research","score":0.998199999332428,"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":0.998199999332428,"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/T10659","display_name":"Marine animal studies overview","score":0.9950000047683716,"subfield":{"id":"https://openalex.org/subfields/2303","display_name":"Ecology"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11459","display_name":"Arctic and Antarctic ice dynamics","score":0.9918000102043152,"subfield":{"id":"https://openalex.org/subfields/1902","display_name":"Atmospheric Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/whale","display_name":"Whale","score":0.9300832748413086},{"id":"https://openalex.org/keywords/hilbert\u2013huang-transform","display_name":"Hilbert\u2013Huang transform","score":0.6194207072257996},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.524720311164856},{"id":"https://openalex.org/keywords/energy","display_name":"Energy (signal processing)","score":0.5014703273773193},{"id":"https://openalex.org/keywords/energy-distribution","display_name":"Energy distribution","score":0.4623526334762573},{"id":"https://openalex.org/keywords/frequency-band","display_name":"Frequency band","score":0.42808467149734497},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.37555864453315735},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.2933608293533325},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.23298299312591553},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2271001935005188},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.19387099146842957},{"id":"https://openalex.org/keywords/biology","display_name":"Biology","score":0.08943355083465576},{"id":"https://openalex.org/keywords/fishery","display_name":"Fishery","score":0.08099064230918884},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.06600785255432129}],"concepts":[{"id":"https://openalex.org/C2777704720","wikidata":"https://www.wikidata.org/wiki/Q1865281","display_name":"Whale","level":2,"score":0.9300832748413086},{"id":"https://openalex.org/C25570617","wikidata":"https://www.wikidata.org/wiki/Q1006462","display_name":"Hilbert\u2013Huang transform","level":3,"score":0.6194207072257996},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.524720311164856},{"id":"https://openalex.org/C186370098","wikidata":"https://www.wikidata.org/wiki/Q442787","display_name":"Energy (signal processing)","level":2,"score":0.5014703273773193},{"id":"https://openalex.org/C2986743833","wikidata":"https://www.wikidata.org/wiki/Q844861","display_name":"Energy distribution","level":2,"score":0.4623526334762573},{"id":"https://openalex.org/C2778116611","wikidata":"https://www.wikidata.org/wiki/Q25110567","display_name":"Frequency band","level":3,"score":0.42808467149734497},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.37555864453315735},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.2933608293533325},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.23298299312591553},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2271001935005188},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.19387099146842957},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.08943355083465576},{"id":"https://openalex.org/C505870484","wikidata":"https://www.wikidata.org/wiki/Q180538","display_name":"Fishery","level":1,"score":0.08099064230918884},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.06600785255432129},{"id":"https://openalex.org/C184779094","wikidata":"https://www.wikidata.org/wiki/Q26383","display_name":"Atomic physics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/ispacs51563.2021.9651044","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ispacs51563.2021.9651044","pdf_url":null,"source":{"id":"https://openalex.org/S4363605678","display_name":"2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","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":"2021 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","score":0.800000011920929,"display_name":"Affordable and clean energy"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":6,"referenced_works":["https://openalex.org/W2007221293","https://openalex.org/W2034336995","https://openalex.org/W2067252527","https://openalex.org/W2092879021","https://openalex.org/W2741858676","https://openalex.org/W6889979487"],"related_works":["https://openalex.org/W2554496232","https://openalex.org/W2795267019","https://openalex.org/W1982260925","https://openalex.org/W2024176855","https://openalex.org/W2365456737","https://openalex.org/W2381377653","https://openalex.org/W2376818140","https://openalex.org/W2076600150","https://openalex.org/W3094701689","https://openalex.org/W3025920570"],"abstract_inverted_index":{"This":[0,161],"paper":[1],"presents":[2],"the":[3,27,34,61,64,83,98,104,117,122,128,133,139,144,151,156,166],"intrinsic":[4],"mode":[5,66],"functions":[6],"(IMFs)":[7],"and":[8,55,78,82,112,148],"residue":[9],"function":[10],"(RF)":[11],"energy":[12,72,100],"distribution":[13,73,90,101],"characteristic":[14],"analysis":[15,94],"technology":[16],"for":[17],"blue":[18,41,47,105,172],"whale":[19,22,42,48,106,173],"vocalizations.":[20,174],"Blue":[21],"vocalization":[23,49],"were":[24,51,58,80,91,114],"downloaded":[25],"from":[26,60],"Scripps":[28],"Whale":[29],"Acoustics":[30],"Lab":[31],"[7]":[32],"of":[33,36,76,103,108,124,135,146,158,171],"University":[35],"California":[37],"San":[38],"Diego":[39],"website;":[40],"type":[43],"B-calls":[44],"with":[45,88],"six":[46],"samples":[50,62],"analyzed.":[52],"Four":[53],"IMFs":[54,77],"one":[56],"RF":[57,79],"disassembled":[59],"using":[63],"empirical":[65],"decomposition":[67],"(EMD)":[68],"method.":[69],"The":[70,93],"average":[71,99],"ratio":[74],"characteristics":[75,87],"presented,":[81],"Hilbert":[84,167],"spectrum":[85,168],"(HS)":[86,169],"time-frequency-energy":[89],"obtained.":[92],"results":[95],"show":[96],"that":[97],"ratios":[102],"vocalizations":[107],"IMF1,":[109],"IMF2,":[110],"IMF3,":[111],"IMF4,":[113],"3.58%":[115],"in":[116,127,138,150],"250-310Hz":[118],"frequency":[119,130,141,153],"band":[120,131,142,154],"during":[121,132,143,155],"intervals":[123,134,145,157],"3.5\u20133.53ms,":[125],"2.69%":[126],"60-100Hz":[129],"2.54\u20132.57ms,":[136],"4.30%":[137],"40-50Hz":[140],"3.14\u20133.17ms,":[147],"4.04%":[149],"20-30Hz":[152],"3.05\u20133.08ms,":[159],"respectively.":[160],"study":[162],"helps":[163],"us":[164],"understand":[165],"features":[170]},"counts_by_year":[{"year":2022,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}