{"id":"https://openalex.org/W2799512773","doi":"https://doi.org/10.1142/s0218001418580065","title":"Time\u2013Frequency Analysis of Pressure Pulsation Signal in the Chamber of Self-Resonating Jet Nozzle","display_name":"Time\u2013Frequency Analysis of Pressure Pulsation Signal in the Chamber of Self-Resonating Jet Nozzle","publication_year":2018,"publication_date":"2018-05-07","ids":{"openalex":"https://openalex.org/W2799512773","doi":"https://doi.org/10.1142/s0218001418580065","mag":"2799512773"},"language":"en","primary_location":{"id":"doi:10.1142/s0218001418580065","is_oa":false,"landing_page_url":"https://doi.org/10.1142/s0218001418580065","pdf_url":null,"source":{"id":"https://openalex.org/S41486457","display_name":"International Journal of Pattern Recognition and Artificial Intelligence","issn_l":"0218-0014","issn":["0218-0014","1793-6381"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319815","host_organization_name":"World Scientific","host_organization_lineage":["https://openalex.org/P4310319815"],"host_organization_lineage_names":["World Scientific"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Pattern Recognition and Artificial Intelligence","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/A5102027769","display_name":"Lihua Cui","orcid":"https://orcid.org/0000-0003-2817-2819"},"institutions":[{"id":"https://openalex.org/I92403157","display_name":"University of Science and Technology Beijing","ror":"https://ror.org/02egmk993","country_code":"CN","type":"education","lineage":["https://openalex.org/I92403157"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lihua Cui","raw_affiliation_strings":["School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China"],"raw_orcid":"https://orcid.org/0000-0003-2817-2819","affiliations":[{"raw_affiliation_string":"School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China","institution_ids":["https://openalex.org/I92403157"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5054831684","display_name":"Fei Ma","orcid":"https://orcid.org/0000-0001-7941-8773"},"institutions":[{"id":"https://openalex.org/I92403157","display_name":"University of Science and Technology Beijing","ror":"https://ror.org/02egmk993","country_code":"CN","type":"education","lineage":["https://openalex.org/I92403157"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Fei Ma","raw_affiliation_strings":["School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China","institution_ids":["https://openalex.org/I92403157"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063576030","display_name":"Qing Gu","orcid":"https://orcid.org/0000-0002-8293-2201"},"institutions":[{"id":"https://openalex.org/I92403157","display_name":"University of Science and Technology Beijing","ror":"https://ror.org/02egmk993","country_code":"CN","type":"education","lineage":["https://openalex.org/I92403157"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qing Gu","raw_affiliation_strings":["School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China","institution_ids":["https://openalex.org/I92403157"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5109433707","display_name":"Tengfei Cai","orcid":null},"institutions":[{"id":"https://openalex.org/I92403157","display_name":"University of Science and Technology Beijing","ror":"https://ror.org/02egmk993","country_code":"CN","type":"education","lineage":["https://openalex.org/I92403157"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Tengfei Cai","raw_affiliation_strings":["School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, P. R. China","institution_ids":["https://openalex.org/I92403157"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5054831684"],"corresponding_institution_ids":["https://openalex.org/I92403157"],"apc_list":null,"apc_paid":null,"fwci":0.5478,"has_fulltext":false,"cited_by_count":9,"citation_normalized_percentile":{"value":0.65701864,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"32","issue":"11","first_page":"1858006","last_page":"1858006"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10220","display_name":"Machine Fault Diagnosis Techniques","score":0.994700014591217,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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/T10220","display_name":"Machine Fault Diagnosis Techniques","score":0.994700014591217,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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/T10688","display_name":"Image and Signal Denoising Methods","score":0.9865000247955322,"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"}},{"id":"https://openalex.org/T12537","display_name":"Flow Measurement and Analysis","score":0.9794999957084656,"subfield":{"id":"https://openalex.org/subfields/2211","display_name":"Mechanics of Materials"},"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/morlet-wavelet","display_name":"Morlet wavelet","score":0.7992234230041504},{"id":"https://openalex.org/keywords/fast-fourier-transform","display_name":"Fast Fourier transform","score":0.7156386971473694},{"id":"https://openalex.org/keywords/frequency-domain","display_name":"Frequency domain","score":0.6153402328491211},{"id":"https://openalex.org/keywords/nozzle","display_name":"Nozzle","score":0.5667790174484253},{"id":"https://openalex.org/keywords/time\u2013frequency-analysis","display_name":"Time\u2013frequency analysis","score":0.5655604600906372},{"id":"https://openalex.org/keywords/jet","display_name":"Jet (fluid)","score":0.5653148889541626},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.5218538045883179},{"id":"https://openalex.org/keywords/frequency-analysis","display_name":"Frequency analysis","score":0.5033780932426453},{"id":"https://openalex.org/keywords/signal","display_name":"SIGNAL (programming language)","score":0.49674779176712036},{"id":"https://openalex.org/keywords/wavelet","display_name":"Wavelet","score":0.4714316427707672},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.43727055191993713},{"id":"https://openalex.org/keywords/fourier-transform","display_name":"Fourier transform","score":0.42571085691452026},{"id":"https://openalex.org/keywords/wavelet-transform","display_name":"Wavelet transform","score":0.398776113986969},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.37333372235298157},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.34066832065582275},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.29707688093185425},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.1924687922000885},{"id":"https://openalex.org/keywords/discrete-wavelet-transform","display_name":"Discrete wavelet transform","score":0.1488114297389984},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.14809000492095947},{"id":"https://openalex.org/keywords/filter","display_name":"Filter (signal processing)","score":0.11811929941177368},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.10362628102302551},{"id":"https://openalex.org/keywords/mechanics","display_name":"Mechanics","score":0.10339146852493286}],"concepts":[{"id":"https://openalex.org/C2778280487","wikidata":"https://www.wikidata.org/wiki/Q3505077","display_name":"Morlet wavelet","level":5,"score":0.7992234230041504},{"id":"https://openalex.org/C75172450","wikidata":"https://www.wikidata.org/wiki/Q623950","display_name":"Fast Fourier transform","level":2,"score":0.7156386971473694},{"id":"https://openalex.org/C19118579","wikidata":"https://www.wikidata.org/wiki/Q786423","display_name":"Frequency domain","level":2,"score":0.6153402328491211},{"id":"https://openalex.org/C56200935","wikidata":"https://www.wikidata.org/wiki/Q250840","display_name":"Nozzle","level":2,"score":0.5667790174484253},{"id":"https://openalex.org/C142433447","wikidata":"https://www.wikidata.org/wiki/Q7806653","display_name":"Time\u2013frequency analysis","level":3,"score":0.5655604600906372},{"id":"https://openalex.org/C119947313","wikidata":"https://www.wikidata.org/wiki/Q5596635","display_name":"Jet (fluid)","level":2,"score":0.5653148889541626},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.5218538045883179},{"id":"https://openalex.org/C97118885","wikidata":"https://www.wikidata.org/wiki/Q565636","display_name":"Frequency analysis","level":2,"score":0.5033780932426453},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.49674779176712036},{"id":"https://openalex.org/C47432892","wikidata":"https://www.wikidata.org/wiki/Q831390","display_name":"Wavelet","level":2,"score":0.4714316427707672},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.43727055191993713},{"id":"https://openalex.org/C102519508","wikidata":"https://www.wikidata.org/wiki/Q6520159","display_name":"Fourier transform","level":2,"score":0.42571085691452026},{"id":"https://openalex.org/C196216189","wikidata":"https://www.wikidata.org/wiki/Q2867","display_name":"Wavelet transform","level":3,"score":0.398776113986969},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.37333372235298157},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.34066832065582275},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.29707688093185425},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.1924687922000885},{"id":"https://openalex.org/C46286280","wikidata":"https://www.wikidata.org/wiki/Q2414958","display_name":"Discrete wavelet transform","level":4,"score":0.1488114297389984},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.14809000492095947},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.11811929941177368},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.10362628102302551},{"id":"https://openalex.org/C57879066","wikidata":"https://www.wikidata.org/wiki/Q41217","display_name":"Mechanics","level":1,"score":0.10339146852493286},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1142/s0218001418580065","is_oa":false,"landing_page_url":"https://doi.org/10.1142/s0218001418580065","pdf_url":null,"source":{"id":"https://openalex.org/S41486457","display_name":"International Journal of Pattern Recognition and Artificial Intelligence","issn_l":"0218-0014","issn":["0218-0014","1793-6381"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319815","host_organization_name":"World Scientific","host_organization_lineage":["https://openalex.org/P4310319815"],"host_organization_lineage_names":["World Scientific"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Pattern Recognition and Artificial Intelligence","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":0.6100000143051147}],"awards":[],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":36,"referenced_works":["https://openalex.org/W1965258087","https://openalex.org/W1985437849","https://openalex.org/W1990422817","https://openalex.org/W1998014495","https://openalex.org/W2001626771","https://openalex.org/W2005411060","https://openalex.org/W2012535613","https://openalex.org/W2012601560","https://openalex.org/W2016304034","https://openalex.org/W2020485833","https://openalex.org/W2032354571","https://openalex.org/W2033601240","https://openalex.org/W2039385801","https://openalex.org/W2040392523","https://openalex.org/W2040788476","https://openalex.org/W2041499385","https://openalex.org/W2056124871","https://openalex.org/W2060304859","https://openalex.org/W2068231859","https://openalex.org/W2079663272","https://openalex.org/W2081986197","https://openalex.org/W2085234380","https://openalex.org/W2090218979","https://openalex.org/W2090444892","https://openalex.org/W2090768274","https://openalex.org/W2092829727","https://openalex.org/W2111259476","https://openalex.org/W2121166035","https://openalex.org/W2131689161","https://openalex.org/W2152792250","https://openalex.org/W2395244901","https://openalex.org/W2517513258","https://openalex.org/W2580435456","https://openalex.org/W2620280517","https://openalex.org/W3102784464","https://openalex.org/W4251887525"],"related_works":["https://openalex.org/W1947057263","https://openalex.org/W2754589921","https://openalex.org/W2128960666","https://openalex.org/W2370389382","https://openalex.org/W2355447608","https://openalex.org/W262431325","https://openalex.org/W2390651447","https://openalex.org/W3084700961","https://openalex.org/W2033002416","https://openalex.org/W1980067354"],"abstract_inverted_index":{"In":[0,87],"this":[1],"paper,":[2],"time\u2013frequency":[3],"(TF)":[4],"characteristics":[5,156],"of":[6,72,82,118,135],"pressure":[7],"pulsation":[8],"in":[9,56],"the":[10,36,45,51,67,73,79,83,93,101,110,116,132,136,145],"self-resonating":[11,74,137],"jet":[12,75,138,153],"nozzle":[13],"were":[14,96],"thoroughly":[15],"checked":[16],"and":[17,30,48,109,115,142,144],"analyzed":[18],"by":[19,99],"two":[20],"TF":[21,60,146,155],"analysis":[22,61,81,147],"methods.":[23],"The":[24,123],"frequency":[25,70,85,133],"spectrum":[26],"including":[27],"frequency-domain":[28,119],"structure":[29,120],"approximate":[31],"frequency-scope":[32],"was":[33,63,121],"obtained":[34],"via":[35],"classical":[37],"fast":[38],"Fourier":[39],"transform":[40],"(FFT)":[41],"method.":[42],"Due":[43],"to":[44,65],"typical":[46],"nonstationary":[47],"time-varying":[49],"nature,":[50],"FFT":[52],"method":[53,62,148],"is":[54,128,149],"inefficient":[55],"analyzing":[57],"such":[58],"signals.":[59],"introduced":[64],"obtain":[66],"accurate":[68],"instantaneous":[69],"(IF)":[71],"signal,":[76],"which":[77],"makes":[78],"quantitative":[80],"resonance":[84],"possible.":[86],"addition,":[88],"a":[89],"comparative":[90],"study":[91],"on":[92],"IF":[94],"results":[95],"carried":[97],"out":[98],"coupling":[100],"Morlet":[102],"wavelet":[103,106],"transforms,":[104],"synchrosqueezed":[105],"transforms":[107],"(SWTs)":[108],"modulus":[111],"maximum":[112],"methods":[113],"together,":[114],"coherence":[117],"demonstrated.":[122],"result":[124],"showed":[125],"that":[126],"SWT":[127],"good":[129],"at":[130],"acquiring":[131],"distribution":[134],"with":[139,157],"high":[140,158],"readability":[141],"accuracy,":[143],"suitable":[150],"for":[151],"researching":[152],"nozzle\u2019s":[154],"efficiency.":[159]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":1},{"year":2019,"cited_by_count":2}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}