{"title":"An implementation of high-speed adaptive noise canceller with parallel block structure","authors":"Chawalit Benjangkaprasert, Katsumi Kikuchi, Sobuaki Takahashi, Tsuyoshi Takehe","doi":"10.1109/APCCAS.1994.514579","DOIUrl":null,"url":null,"abstract":"An adaptive algorithm for detecting a single sinusoid of unknown frequency corrupted by Gaussian noise has been proposed by Nishimura et al. using IIR bandpass filter with a variable center frequency/sup [1]/. The filter has the parallel block structure for fast processing. However, the algorithm has two problems: one is that it has several input frequencies making it impossible to converge; another is that the convergence rate cannot be higher than that of the scalar structure. In this paper, the causes of these problems are investigated and a new algorithm is proposed to solve these problems. Simulation results are given to illustrate the performance of the proposed algorithm.","PeriodicalId":231368,"journal":{"name":"Proceedings of APCCAS'94 - 1994 Asia Pacific Conference on Circuits and Systems","volume":"72 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1994-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of APCCAS'94 - 1994 Asia Pacific Conference on Circuits and Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APCCAS.1994.514579","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
An adaptive algorithm for detecting a single sinusoid of unknown frequency corrupted by Gaussian noise has been proposed by Nishimura et al. using IIR bandpass filter with a variable center frequency/sup [1]/. The filter has the parallel block structure for fast processing. However, the algorithm has two problems: one is that it has several input frequencies making it impossible to converge; another is that the convergence rate cannot be higher than that of the scalar structure. In this paper, the causes of these problems are investigated and a new algorithm is proposed to solve these problems. Simulation results are given to illustrate the performance of the proposed algorithm.
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