{"id":"https://openalex.org/W2104367485","doi":"https://doi.org/10.1109/tim.2009.2025069","title":"Obtaining Time Derivative of Low-Frequency Signals With Improved Signal-to-Noise Ratio","display_name":"Obtaining Time Derivative of Low-Frequency Signals With Improved Signal-to-Noise Ratio","publication_year":2009,"publication_date":"2009-09-24","ids":{"openalex":"https://openalex.org/W2104367485","doi":"https://doi.org/10.1109/tim.2009.2025069","mag":"2104367485"},"language":"en","primary_location":{"id":"doi:10.1109/tim.2009.2025069","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tim.2009.2025069","pdf_url":null,"source":{"id":"https://openalex.org/S10892749","display_name":"IEEE Transactions on Instrumentation and Measurement","issn_l":"0018-9456","issn":["0018-9456","1557-9662"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["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 Transactions on Instrumentation and Measurement","raw_type":"journal-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/A5042577145","display_name":"Jayanth Chakradhar Kruttiventi","orcid":null},"institutions":[{"id":"https://openalex.org/I74760111","display_name":"Texas Instruments (United States)","ror":"https://ror.org/03vsmv677","country_code":"US","type":"company","lineage":["https://openalex.org/I74760111"]},{"id":"https://openalex.org/I75027704","display_name":"University of Tennessee at Knoxville","ror":"https://ror.org/020f3ap87","country_code":"US","type":"education","lineage":["https://openalex.org/I75027704"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"J. Kruttiventi","raw_affiliation_strings":["Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville, TN, USA","Texas Instruments, Inc., Dallas, TX, USA"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville, TN, USA","institution_ids":["https://openalex.org/I75027704"]},{"raw_affiliation_string":"Texas Instruments, Inc., Dallas, TX, USA","institution_ids":["https://openalex.org/I74760111"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100349391","display_name":"Jie Wu","orcid":"https://orcid.org/0000-0001-5143-9425"},"institutions":[{"id":"https://openalex.org/I75027704","display_name":"University of Tennessee at Knoxville","ror":"https://ror.org/020f3ap87","country_code":"US","type":"education","lineage":["https://openalex.org/I75027704"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Jie Wu","raw_affiliation_strings":["Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville, TN, USA"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering and Computer Science, University of Tennessee, Knoxville, TN, USA","institution_ids":["https://openalex.org/I75027704"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5086712982","display_name":"J. I. Frankel","orcid":"https://orcid.org/0000-0003-1085-3165"},"institutions":[{"id":"https://openalex.org/I75027704","display_name":"University of Tennessee at Knoxville","ror":"https://ror.org/020f3ap87","country_code":"US","type":"education","lineage":["https://openalex.org/I75027704"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"J.I. Frankel","raw_affiliation_strings":["Department of Mechanical, AeroSpace and Biomedical Engineering, University of Tennessee, Knoxville, TN, USA"],"affiliations":[{"raw_affiliation_string":"Department of Mechanical, AeroSpace and Biomedical Engineering, University of Tennessee, Knoxville, TN, USA","institution_ids":["https://openalex.org/I75027704"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5042577145"],"corresponding_institution_ids":["https://openalex.org/I74760111","https://openalex.org/I75027704"],"apc_list":null,"apc_paid":null,"fwci":0.667,"has_fulltext":false,"cited_by_count":13,"citation_normalized_percentile":{"value":0.72515835,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"59","issue":"3","first_page":"596","last_page":"603"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13928","display_name":"Advanced Sensor Technologies Research","score":0.9991999864578247,"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"}},"topics":[{"id":"https://openalex.org/T13928","display_name":"Advanced Sensor Technologies Research","score":0.9991999864578247,"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/T12564","display_name":"Sensor Technology and Measurement Systems","score":0.9980000257492065,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T11890","display_name":"Scientific Measurement and Uncertainty Evaluation","score":0.9922000169754028,"subfield":{"id":"https://openalex.org/subfields/1804","display_name":"Statistics, Probability and Uncertainty"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.6589914560317993},{"id":"https://openalex.org/keywords/heat-flux","display_name":"Heat flux","score":0.6209731698036194},{"id":"https://openalex.org/keywords/derivative","display_name":"Derivative (finance)","score":0.5254127979278564},{"id":"https://openalex.org/keywords/flux","display_name":"Flux (metallurgy)","score":0.5124629139900208},{"id":"https://openalex.org/keywords/sampling","display_name":"Sampling (signal processing)","score":0.48667436838150024},{"id":"https://openalex.org/keywords/transient","display_name":"Transient (computer programming)","score":0.46150830388069153},{"id":"https://openalex.org/keywords/signal","display_name":"SIGNAL (programming language)","score":0.4525808095932007},{"id":"https://openalex.org/keywords/matlab","display_name":"MATLAB","score":0.4395791292190552},{"id":"https://openalex.org/keywords/white-noise","display_name":"White noise","score":0.42598390579223633},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.38078415393829346},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.32780322432518005},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.3226724863052368},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.2939399778842926},{"id":"https://openalex.org/keywords/thermodynamics","display_name":"Thermodynamics","score":0.25144731998443604},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.23243248462677002},{"id":"https://openalex.org/keywords/heat-transfer","display_name":"Heat transfer","score":0.21340292692184448},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1838754117488861},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.14029929041862488}],"concepts":[{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.6589914560317993},{"id":"https://openalex.org/C159188206","wikidata":"https://www.wikidata.org/wiki/Q1478382","display_name":"Heat flux","level":3,"score":0.6209731698036194},{"id":"https://openalex.org/C111771559","wikidata":"https://www.wikidata.org/wiki/Q66295","display_name":"Derivative (finance)","level":2,"score":0.5254127979278564},{"id":"https://openalex.org/C68709404","wikidata":"https://www.wikidata.org/wiki/Q1134475","display_name":"Flux (metallurgy)","level":2,"score":0.5124629139900208},{"id":"https://openalex.org/C140779682","wikidata":"https://www.wikidata.org/wiki/Q210868","display_name":"Sampling (signal processing)","level":3,"score":0.48667436838150024},{"id":"https://openalex.org/C2780799671","wikidata":"https://www.wikidata.org/wiki/Q17087362","display_name":"Transient (computer programming)","level":2,"score":0.46150830388069153},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.4525808095932007},{"id":"https://openalex.org/C2780365114","wikidata":"https://www.wikidata.org/wiki/Q169478","display_name":"MATLAB","level":2,"score":0.4395791292190552},{"id":"https://openalex.org/C112633086","wikidata":"https://www.wikidata.org/wiki/Q381287","display_name":"White noise","level":2,"score":0.42598390579223633},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.38078415393829346},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.32780322432518005},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.3226724863052368},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.2939399778842926},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.25144731998443604},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.23243248462677002},{"id":"https://openalex.org/C50517652","wikidata":"https://www.wikidata.org/wiki/Q179635","display_name":"Heat transfer","level":2,"score":0.21340292692184448},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1838754117488861},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.14029929041862488},{"id":"https://openalex.org/C191897082","wikidata":"https://www.wikidata.org/wiki/Q11467","display_name":"Metallurgy","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C106159729","wikidata":"https://www.wikidata.org/wiki/Q2294553","display_name":"Financial economics","level":1,"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/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tim.2009.2025069","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tim.2009.2025069","pdf_url":null,"source":{"id":"https://openalex.org/S10892749","display_name":"IEEE Transactions on Instrumentation and Measurement","issn_l":"0018-9456","issn":["0018-9456","1557-9662"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["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 Transactions on Instrumentation and Measurement","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":0.8399999737739563}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":7,"referenced_works":["https://openalex.org/W1973978676","https://openalex.org/W2062324038","https://openalex.org/W2082533086","https://openalex.org/W2083086796","https://openalex.org/W2088574069","https://openalex.org/W2112611349","https://openalex.org/W4247878450"],"related_works":["https://openalex.org/W4251298892","https://openalex.org/W2356013541","https://openalex.org/W2385444679","https://openalex.org/W3133868776","https://openalex.org/W144391745","https://openalex.org/W2360644005","https://openalex.org/W2350667299","https://openalex.org/W2365027229","https://openalex.org/W4229851301","https://openalex.org/W2349721879"],"abstract_inverted_index":{"Accurate":[0],"prediction":[1],"of":[2,30,96,111,201],"heat":[3,12,21,49,87],"flux":[4,50,88],"is":[5,17,55,135,154,176,188,198],"desired":[6],"in":[7,39,64,108,119,128,156],"many":[8],"transient":[9,52],"aerospace":[10],"and":[11,85,142,182,184],"treatment":[13],"applications,":[14],"but":[15],"it":[16,77],"challenging":[18],"since":[19],"the":[20,27,65,93,109,139],"flux-temperature":[22],"integral":[23],"relationship":[24],"implicitly":[25],"requires":[26],"time":[28,94],"derivative":[29,95],"experimentally":[31],"obtained":[32],"temperature":[33,36,53,66,97,165],"data.":[34],"The":[35,132,150,186],"data":[37,54,67,141],"collected":[38],"practical":[40],"environments":[41],"invariably":[42],"contain":[43],"noise":[44,63],"from":[45,51],"various":[46],"sources.":[47],"Predicting":[48],"well":[56],"known":[57],"to":[58,136,191],"be":[59,90],"ill":[60],"posed.":[61],"High-frequency":[62],"causes":[68],"unbounded":[69],"numerical":[70],"derivatives":[71],"with":[72,158,172,193],"increasing":[73,194],"sampling":[74,195],"rate.":[75],"However,":[76],"has":[78],"theoretically":[79],"been":[80],"demonstrated":[81],"that":[82],"a":[83,121,147],"stable":[84],"accurate":[86],"can":[89,167],"predicted":[91],"using":[92],"(":[98],"<i":[99,103,161],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[100,104,162],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">dT</i>":[101],"/":[102],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">dt</i>":[105],")":[106],"even":[107],"presence":[110],"significant":[112],"white":[113],"noise.":[114],"This":[115],"motivates":[116],"this":[117,202],"paper":[118],"developing":[120],"voltage-rate":[122,151],"sensor":[123],"interface":[124],"for":[125],"low-frequency":[126],"applications":[127],"solid":[129],"heat-conducting":[130],"bodies.":[131],"present":[133],"concept":[134],"amplitude":[137],"modulate":[138],"voltage":[140],"then":[143],"differentiate":[144],"them":[145],"at":[146],"higher":[148],"frequency.":[149],"interface,":[152],"which":[153,175,197],"used":[155],"conjunction":[157],"an":[159,199],"existing":[160],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">in":[163],"situ</i>":[164],"sensor,":[166],"deliver":[168],"real-time":[169],"heating":[170],"rate":[171],"improved":[173],"SNR,":[174],"verified":[177],"by":[178],"both":[179],"simulation":[180],"(Matlab":[181],"PSpice)":[183],"experiments.":[185],"SNR":[187],"also":[189],"shown":[190],"improve":[192],"rate,":[196],"advantage":[200],"interface.":[203]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
