{"title":"基于传输在线模型的两级滤波器消除一维管道噪声","authors":"N. Nakasako, H. Ogura, T. Deguchi, A. Ishikawa","doi":"10.1109/MWSCAS.2004.1354316","DOIUrl":null,"url":null,"abstract":"Active noise control (ANC) in a one-dimensional duct can be expressed in terms of a transmission line model. Thus, the proposed ANC system probes sound pressures at arbitrary two points of the transmission line, differing from a usual system such as filtered-x. The frequency response function of ANC circuit is obtained and then the two-stage digital filter for control is realized. More concretely, the first stage filter generates the voltage and current at the secondary source position from the observations and the second one produces the secondary source. Finally, the validity of the proposed theory is confirmed through simulation.","PeriodicalId":185817,"journal":{"name":"The 2004 47th Midwest Symposium on Circuits and Systems, 2004. MWSCAS '04.","volume":"256 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2004-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Two-stage filters for canceling a one-dimensional duct noise based on transmission-line model\",\"authors\":\"N. Nakasako, H. Ogura, T. Deguchi, A. Ishikawa\",\"doi\":\"10.1109/MWSCAS.2004.1354316\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Active noise control (ANC) in a one-dimensional duct can be expressed in terms of a transmission line model. Thus, the proposed ANC system probes sound pressures at arbitrary two points of the transmission line, differing from a usual system such as filtered-x. The frequency response function of ANC circuit is obtained and then the two-stage digital filter for control is realized. More concretely, the first stage filter generates the voltage and current at the secondary source position from the observations and the second one produces the secondary source. Finally, the validity of the proposed theory is confirmed through simulation.\",\"PeriodicalId\":185817,\"journal\":{\"name\":\"The 2004 47th Midwest Symposium on Circuits and Systems, 2004. MWSCAS '04.\",\"volume\":\"256 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2004-07-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The 2004 47th Midwest Symposium on Circuits and Systems, 2004. MWSCAS '04.\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MWSCAS.2004.1354316\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The 2004 47th Midwest Symposium on Circuits and Systems, 2004. MWSCAS '04.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWSCAS.2004.1354316","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Two-stage filters for canceling a one-dimensional duct noise based on transmission-line model
Active noise control (ANC) in a one-dimensional duct can be expressed in terms of a transmission line model. Thus, the proposed ANC system probes sound pressures at arbitrary two points of the transmission line, differing from a usual system such as filtered-x. The frequency response function of ANC circuit is obtained and then the two-stage digital filter for control is realized. More concretely, the first stage filter generates the voltage and current at the secondary source position from the observations and the second one produces the secondary source. Finally, the validity of the proposed theory is confirmed through simulation.
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