| Presentation | 1997/3/7 A Study on the Convergence Speed of an Adaptive IIR Filter Based on the Estimation of Allpass System James Okello, Yoshio Itoh, Yutaka Fukui, Masaki Kobayashi, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | An adaptive infinite impulse response (IIR) filter implemented using an allpass and a minimum phase system has an advantage of its poles converging to the poles of the unknown system when the input is a white signal. However, when the input signal is colored, convergence speed deteriorates considerably; even to the point of lack of convergence for certain colored signals. Furthermore with a colored input signal, there is no guarantee that the poles of the adaptive digital filter (ADF) will converge to the poles of the unknown system. In this paper we propose a method which uses a predictor filter to whiten the input signal so as to improve the convergence condition. Computer simulation results confirms the increase in convergence speed and the convergence of the poles of the ADF to the poles of the unknown system even when the input is a colored signal. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Allpass Filter / Minimum Phase System / Linear Predictor Filter |
| Paper # | CAS96-103,DSP96-154,CS96-159 |
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| Conference Information | |
| Committee | DSP |
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| Conference Date | 1997/3/7(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Digital Signal Processing (DSP) |
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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 the Convergence Speed of an Adaptive IIR Filter Based on the Estimation of Allpass System |
| Sub Title (in English) | |
| Keyword(1) | Allpass Filter |
| Keyword(2) | Minimum Phase System |
| Keyword(3) | Linear Predictor Filter |
| 1st Author's Name | James Okello |
| 1st Author's Affiliation | Faculty of Engineering, Tottori University() |
| 2nd Author's Name | Yoshio Itoh |
| 2nd Author's Affiliation | Faculty of Engineering, Tottori University |
| 3rd Author's Name | Yutaka Fukui |
| 3rd Author's Affiliation | Faculty of Engineering, Tottori University |
| 4th Author's Name | Masaki Kobayashi |
| 4th Author's Affiliation | Faculty of Engineering, Ibaraki University |
| Date | 1997/3/7 |
| Paper # | CAS96-103,DSP96-154,CS96-159 |
| Volume (vol) | vol.96 |
| Number (no) | 552 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |