| Presentation | 2021-03-04 A Fast Algorithm of an Adaptive Notch Filter for Colored Input Signal Chiharu Matsumoto, Yasutomo Kinugasa, Ryo Ashikaga, Yoshio Itoh, Naoto Sasaoka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In an adaptive notch filter based on an allpass filter, it has been proved that the bias error is zero when the wideband signal is a white signal because the wideband signal satisfies orthogonality, assuming that the wideband and narrowband signals are statistically independent. However, when the broadband signal is colored, it does not satisfy orthogonality and the convergence speed is slowed down due to the bias error. An infinite-impulse response (IIR) adaptive notch filter based on an adaptive line enhancer (ALE) and an allpass filter has been proposed as a method to improve the frequency estimation characteristics when the broadband signal is colored. This IIR adaptive notch filter shows the convergence speed when a value close to one is used for the polar radius. In this paper, I propose an adaptive notch filter based on the pole position control method to improve the convergence speed, and report the results of good convergence characteristics. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Adaptive Notch Filter / Allpath Filter / Adaptive Line Enhancer / Bias / Colored Input Signal |
| Paper # | SIS2020-36 |
| Date of Issue | 2021-02-25 (SIS) |
| Conference Information | |
| Committee | SIS |
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| Conference Date | 2021/3/4(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Soft Computing, etc. |
| Chair | Noriaki Suetake(Yamaguchi Univ.) |
| Vice Chair | Tomoaki Kimura(Kanagawa Inst. of Tech.) / Naoto Sasaoka(Tottori Univ.) |
| Secretary | Tomoaki Kimura(Kindai Univ.) / Naoto Sasaoka(National Inst. of Tech., Ube College) |
| Assistant | Yukihiro Bandoh(NTT) / Soh Yoshida(Kansai Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Smart Info-Media Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Fast Algorithm of an Adaptive Notch Filter for Colored Input Signal |
| Sub Title (in English) | |
| Keyword(1) | Adaptive Notch Filter |
| Keyword(2) | Allpath Filter |
| Keyword(3) | Adaptive Line Enhancer |
| Keyword(4) | Bias |
| Keyword(5) | Colored Input Signal |
| 1st Author's Name | Chiharu Matsumoto |
| 1st Author's Affiliation | National Institute of Technology, Matsue College(NIT, Matsue College) |
| 2nd Author's Name | Yasutomo Kinugasa |
| 2nd Author's Affiliation | National Institute of Technology, Matsue College(NIT, Matsue College) |
| 3rd Author's Name | Ryo Ashikaga |
| 3rd Author's Affiliation | NEC Networks & System Integration Corporation(NEC Networks & System Integration) |
| 4th Author's Name | Yoshio Itoh |
| 4th Author's Affiliation | Tottori University(Tottori Univ.) |
| 5th Author's Name | Naoto Sasaoka |
| 5th Author's Affiliation | Tottori University(Tottori Univ.) |
| Date | 2021-03-04 |
| Paper # | SIS2020-36 |
| Volume (vol) | vol.120 |
| Number (no) | SIS-415 |
| Page | pp.pp.5-10(SIS), |
| #Pages | 6 |
| Date of Issue | 2021-02-25 (SIS) |