{"id":"https://openalex.org/W4391892426","doi":"https://doi.org/10.1109/jsen.2024.3364720","title":"Human Micro-Doppler Frequency Estimation by Clustering and KNN Joint Algorithm","display_name":"Human Micro-Doppler Frequency Estimation by Clustering and KNN Joint Algorithm","publication_year":2024,"publication_date":"2024-02-16","ids":{"openalex":"https://openalex.org/W4391892426","doi":"https://doi.org/10.1109/jsen.2024.3364720"},"language":"en","primary_location":{"id":"doi:10.1109/jsen.2024.3364720","doi":"https://doi.org/10.1109/jsen.2024.3364720","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jsen.2024.3364720","pdf_url":null,"source":{"id":"https://openalex.org/S189694085","display_name":"IEEE Sensors Journal","issn_l":"1530-437X","issn":["1530-437X","1558-1748","2379-9153"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-2","ki-jl-2","norway-2","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310321027","host_organization_name":"IEEE Sensors Council","host_organization_lineage":["https://openalex.org/P4310321027","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Sensors Council","Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Sensors Journal","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"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/A5059933638","display_name":"Yipeng Ding","orcid":"https://orcid.org/0000-0002-9682-5562","observed_orcids":["https://orcid.org/0000-0002-9682-5562"]},"institutions":[{"id":"https://openalex.org/I139660479","display_name":"Central South University","ror":"https://ror.org/00f1zfq44","country_code":"CN","type":"education","lineage":["https://openalex.org/I139660479"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yipeng Ding","raw_affiliation_strings":["School of Electronic Information, Central South University, Changsha, China"],"raw_orcid":"https://orcid.org/0000-0002-9682-5562","affiliations":[{"raw_affiliation_string":"School of Electronic Information, Central South University, Changsha, China","institution_ids":["https://openalex.org/I139660479"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060273231","display_name":"Yuxin Chen","orcid":"https://orcid.org/0000-0002-4195-5562","observed_orcids":["https://orcid.org/0000-0002-4195-5562"]},"institutions":[{"id":"https://openalex.org/I139660479","display_name":"Central South University","ror":"https://ror.org/00f1zfq44","country_code":"CN","type":"education","lineage":["https://openalex.org/I139660479"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yuxin Chen","raw_affiliation_strings":["School of Electronic Information, Central South University, Changsha, China"],"raw_orcid":"https://orcid.org/0000-0002-4195-5562","affiliations":[{"raw_affiliation_string":"School of Electronic Information, Central South University, Changsha, China","institution_ids":["https://openalex.org/I139660479"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063921019","display_name":"Jiaxuan Cao","orcid":"https://orcid.org/0000-0001-6705-8600","observed_orcids":["https://orcid.org/0000-0001-6705-8600"]},"institutions":[{"id":"https://openalex.org/I139660479","display_name":"Central South University","ror":"https://ror.org/00f1zfq44","country_code":"CN","type":"education","lineage":["https://openalex.org/I139660479"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jiaxuan Cao","raw_affiliation_strings":["School of Electronic Information, Central South University, Changsha, China"],"raw_orcid":"https://orcid.org/0000-0001-6705-8600","affiliations":[{"raw_affiliation_string":"School of Electronic Information, Central South University, Changsha, China","institution_ids":["https://openalex.org/I139660479"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5038622110","display_name":"Yaxuan Jiang","orcid":"https://orcid.org/0009-0000-6850-6866","observed_orcids":["https://orcid.org/0009-0000-6850-6866"]},"institutions":[{"id":"https://openalex.org/I139660479","display_name":"Central South University","ror":"https://ror.org/00f1zfq44","country_code":"CN","type":"education","lineage":["https://openalex.org/I139660479"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yaxuan Jiang","raw_affiliation_strings":["School of Electronic Information, Central South University, Changsha, China"],"raw_orcid":"https://orcid.org/0009-0000-6850-6866","affiliations":[{"raw_affiliation_string":"School of Electronic Information, Central South University, Changsha, China","institution_ids":["https://openalex.org/I139660479"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5091457482","display_name":"Xiaochao Hou","orcid":"https://orcid.org/0000-0002-8039-5115","observed_orcids":["https://orcid.org/0000-0002-8039-5115"]},"institutions":[{"id":"https://openalex.org/I139660479","display_name":"Central South University","ror":"https://ror.org/00f1zfq44","country_code":"CN","type":"education","lineage":["https://openalex.org/I139660479"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaochao Hou","raw_affiliation_strings":["School of Electronic Information, Central South University, Changsha, China"],"raw_orcid":"https://orcid.org/0000-0002-8039-5115","affiliations":[{"raw_affiliation_string":"School of Electronic Information, Central South University, Changsha, China","institution_ids":["https://openalex.org/I139660479"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I139660479"],"apc_list":{"value":2495,"currency":"USD","value_usd":2495},"apc_paid":null,"fwci":0.7159,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.60737349,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":95,"max":97},"biblio":{"volume":"24","issue":"7","first_page":"10824","last_page":"10831"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11038","display_name":"Advanced SAR Imaging Techniques","score":0.9726999998092651,"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"}},"topics":[{"id":"https://openalex.org/T11038","display_name":"Advanced SAR Imaging Techniques","score":0.9726999998092651,"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/T11196","display_name":"Non-Invasive Vital Sign Monitoring","score":0.012199999764561653,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/T10891","display_name":"Radar Systems and Signal Processing","score":0.00839999970048666,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/clustering","display_name":"clustering","score":0.47200000286102295},{"id":"https://openalex.org/keywords/k-nearest-neighbors","display_name":"k-nearest neighbors","score":0.9700000286102295},{"id":"https://openalex.org/keywords/instantaneous-frequency-estimation","display_name":"instantaneous frequency estimation","score":0.8019999861717224},{"id":"https://openalex.org/keywords/interference-suppression","display_name":"interference suppression","score":0.9539999961853027}],"concepts":[{"id":"https://openalex.org/C73555534","wikidata":"https://www.wikidata.org/wiki/Q622825","display_name":"Cluster analysis","level":2,"score":0.6884828805923462},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6094905734062195},{"id":"https://openalex.org/C18555067","wikidata":"https://www.wikidata.org/wiki/Q8375051","display_name":"Joint (building)","level":2,"score":0.5942677855491638},{"id":"https://openalex.org/C142757262","wikidata":"https://www.wikidata.org/wiki/Q76436","display_name":"Doppler effect","level":2,"score":0.5181492567062378},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4959653317928314},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3737329840660095},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.33496642112731934},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.17624765634536743},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.13948997855186462},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0},{"id":"https://openalex.org/C170154142","wikidata":"https://www.wikidata.org/wiki/Q150737","display_name":"Architectural engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/jsen.2024.3364720","doi":"https://doi.org/10.1109/jsen.2024.3364720","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jsen.2024.3364720","pdf_url":null,"source":{"id":"https://openalex.org/S189694085","display_name":"IEEE Sensors Journal","issn_l":"1530-437X","issn":["1530-437X","1558-1748","2379-9153"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-2","ki-jl-2","norway-2","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310321027","host_organization_name":"IEEE Sensors Council","host_organization_lineage":["https://openalex.org/P4310321027","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Sensors Council","Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Sensors Journal","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[{"id":"https://openalex.org/G6530575143","display_name":null,"funder_award_id":"2022JJ30749","funder_id":"https://openalex.org/F4320322843","funder_display_name":"Natural Science Foundation of\u00a0Hunan Province"},{"id":"https://openalex.org/G7478874478","display_name":null,"funder_award_id":"2022ZZTS0769","funder_id":"https://openalex.org/F4320321514","funder_display_name":"Central South University"}],"funders":[{"id":"https://openalex.org/F4320321514","display_name":"Central South University","ror":"https://ror.org/00f1zfq44"},{"id":"https://openalex.org/F4320322843","display_name":"Natural Science Foundation of\u00a0Hunan Province","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":25,"referenced_works":["https://openalex.org/W1519309472","https://openalex.org/W1910359679","https://openalex.org/W2020351623","https://openalex.org/W2046217261","https://openalex.org/W2102811685","https://openalex.org/W2112614266","https://openalex.org/W2122624956","https://openalex.org/W2158695700","https://openalex.org/W2305373132","https://openalex.org/W2380965400","https://openalex.org/W2738257622","https://openalex.org/W2754962589","https://openalex.org/W2762060451","https://openalex.org/W2895330383","https://openalex.org/W2942292355","https://openalex.org/W3008086390","https://openalex.org/W3013628189","https://openalex.org/W3134671727","https://openalex.org/W3146688301","https://openalex.org/W3160396525","https://openalex.org/W3163899316","https://openalex.org/W3201525295","https://openalex.org/W4312051255","https://openalex.org/W4312725825","https://openalex.org/W4389076555"],"related_works":["https://openalex.org/W2782776507","https://openalex.org/W3163899316","https://openalex.org/W4390332234","https://openalex.org/W3013628189","https://openalex.org/W2049374533","https://openalex.org/W3034146945","https://openalex.org/W4226187636","https://openalex.org/W2061601368","https://openalex.org/W3001969559","https://openalex.org/W4407404486"],"abstract_inverted_index":{"Accurate":[0],"micro-Doppler":[1],"(m-D)":[2],"frequency":[3,25,90,96],"estimation":[4,26,106],"is":[5,32,49,57,84,124],"crucial":[6],"for":[7,66,93],"Doppler":[8],"radar-based":[9],"human":[10,18],"sensing":[11],"applications.":[12],"However,":[13],"owing":[14],"to":[15,60,73,86],"the":[16,37,74,81,88,110,118,121],"complex":[17],"body":[19],"structure":[20],"and":[21,70,117,127],"motion":[22],"patterns,":[23],"m-D":[24,95],"of":[27],"specific":[28],"target":[29],"limb":[30],"parts":[31],"very":[33],"difficult.":[34],"To":[35],"solve":[36],"issue,":[38],"a":[39,62],"joint":[40],"algorithm":[41,56,83,123],"combining":[42],"clustering":[43,55],"analysis":[44],"and${K}$-nearest":[45],"neighbors":[46],"(KNNs)":[47],"technique":[48],"proposed":[50,122],"in":[51],"this":[52],"article.":[53],"The":[54],"first":[58],"used":[59,85],"identify":[61],"proper":[63],"time\u2013frequency":[64,105],"region":[65],"interested":[67],"echo":[68],"components":[69],"thus":[71],"contribute":[72],"interference":[75],"suppression":[76],"from":[77],"other":[78],"components.":[79],"Then,":[80],"KNN":[82],"fit":[87],"instantaneous":[89],"(IF)":[91],"curve":[92],"accurate":[94],"estimation.":[97],"Experimental":[98],"results":[99],"show":[100],"that,":[101],"compared":[102],"with":[103],"traditional":[104],"algorithms,":[107],"such":[108],"as":[109],"short-time":[111],"Fourier":[112],"transform":[113],"(STFT)":[114],"peak":[115],"search":[116],"Hough\u2013Bezier":[119],"algorithm,":[120],"more":[125],"adaptable":[126],"accurate.":[128]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":3}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2024-02-17T00:00:00"}