{"title":"一种设计多通道余弦调制QMF库的有效算法","authors":"H. Xu, W. Lu, A. Antoniou","doi":"10.1109/MWSCAS.1995.510288","DOIUrl":null,"url":null,"abstract":"An iterative algorithm for the design of multi-channel cosine-modulated quadrature mirror filter (QMF) banks with near-perfect reconstruction is proposed. The objective function is formulated as a quadratic function in each step whose minimum point can be obtained using a closed-form solution. This approach is very efficient and leads to filter banks with high stop-band attenuation and low aliasing and amplitude distortions. Two design examples are included to demonstrate the proposed algorithm and some comparisons are made with existing designs.","PeriodicalId":165081,"journal":{"name":"38th Midwest Symposium on Circuits and Systems. Proceedings","volume":"212 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1995-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"An efficient algorithm for the design of multi-channel cosine-modulated QMF banks\",\"authors\":\"H. Xu, W. Lu, A. Antoniou\",\"doi\":\"10.1109/MWSCAS.1995.510288\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An iterative algorithm for the design of multi-channel cosine-modulated quadrature mirror filter (QMF) banks with near-perfect reconstruction is proposed. The objective function is formulated as a quadratic function in each step whose minimum point can be obtained using a closed-form solution. This approach is very efficient and leads to filter banks with high stop-band attenuation and low aliasing and amplitude distortions. Two design examples are included to demonstrate the proposed algorithm and some comparisons are made with existing designs.\",\"PeriodicalId\":165081,\"journal\":{\"name\":\"38th Midwest Symposium on Circuits and Systems. Proceedings\",\"volume\":\"212 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1995-08-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"38th Midwest Symposium on Circuits and Systems. Proceedings\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MWSCAS.1995.510288\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"38th Midwest Symposium on Circuits and Systems. Proceedings","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWSCAS.1995.510288","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
An efficient algorithm for the design of multi-channel cosine-modulated QMF banks
An iterative algorithm for the design of multi-channel cosine-modulated quadrature mirror filter (QMF) banks with near-perfect reconstruction is proposed. The objective function is formulated as a quadratic function in each step whose minimum point can be obtained using a closed-form solution. This approach is very efficient and leads to filter banks with high stop-band attenuation and low aliasing and amplitude distortions. Two design examples are included to demonstrate the proposed algorithm and some comparisons are made with existing designs.
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