| Presentation | 2007-12-11 A Study on Convergence Condition of Adaptive Notch Filter Using Fourier Sine Series Expansion Masaki KOBAYASHI, Chi WANG, Yasutomo KINUGASA, Yoshio ITOH, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we consider a new adaptive notch filter that realizes the phase shift of the all-pass circuit by the Fourier sine series expansion, an adaptive algorithm and convergence condition of the adaptive algorithm. The method to update the of the all-pass circuit composed by IIR filter is known well. However, there are problems of the stability of the filter, bias error of the weights caused by the broadband signal and the determination method of the filter degree. Hence these adaptive notch filter have not been put to practical use. The proposed adaptive notch filter is stable and the convergence of the adaptive algorithm is guaranteed. The degree of the all-pass filter only depends on the required steepness of the elimination characteristic and does not depend on the number of narrowband signals at should be eliminated. Therefore the prior information of the number of the narrowband signal is not required. It can be said that the proposed method is a suitable method for practical use since the elimination characteristic hardly influenced by the broadband signal added to the narrowband signal. Finally, the convergence condition is verified by computer simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Narrowband Signal / Fourier Sine Series / Convergence Condition / Gradient Algorithm / All-pass Filter |
| Paper # | SIS2007-64 |
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| Committee | SIS |
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| Conference Date | 2007/12/4(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Smart Info-Media Systems (SIS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Convergence Condition of Adaptive Notch Filter Using Fourier Sine Series Expansion |
| Sub Title (in English) | |
| Keyword(1) | Narrowband Signal |
| Keyword(2) | Fourier Sine Series |
| Keyword(3) | Convergence Condition |
| Keyword(4) | Gradient Algorithm |
| Keyword(5) | All-pass Filter |
| 1st Author's Name | Masaki KOBAYASHI |
| 1st Author's Affiliation | Faculty of Engineering, Chubu University() |
| 2nd Author's Name | Chi WANG |
| 2nd Author's Affiliation | Faculty of Engineering, Chubu University |
| 3rd Author's Name | Yasutomo KINUGASA |
| 3rd Author's Affiliation | Matsue National College of Technology |
| 4th Author's Name | Yoshio ITOH |
| 4th Author's Affiliation | Faculty of Engineering, Tottori University |
| Date | 2007-12-11 |
| Paper # | SIS2007-64 |
| Volume (vol) | vol.107 |
| Number (no) | 374 |
| Page | pp.pp.- |
| #Pages | 6 |
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