| Presentation | 2020-03-05 Adaptive Noise Canceller for Clinical Use in the Presence of Frequency-Varying AC Noise Yuya Fukuta, Naohiro Toda, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In clinical diagnostics periodic interference frequently affects the measurement of small signals and causes problems. Adaptive filters can be used as potential tools for cancelling such interference. However, when the interference has a frequency fluctuation, the ideal adaptive filter coefficients for cancelling the interference also fluctuate. When the adaptation property of the algorithm is slow compared with the frequency fluctuation, the interference-cancelling performance is degraded. On the other hand, if the adaptation is too quick, the performance is degraded owing to the target signal, too. To overcome this problem, Matsubara proposed an adaptive filter that suppresses the fluctuation of the ideal coefficients by utilizing a π/2 phase delay device. However, the method assumes a frequency response that characterizes the transmission path from the interference source to the main input signal to be sufficiently constant. Here, we propose a method that fits cases where the frequency response has differential characteristics (proportional to frequency) . In the numerical examples, the proposed method exhibits good performance in the presence of a frequency fluctuation in comparison with the conventional method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Periodic interference / Adaptive filter / Differential characteristics |
| Paper # | MBE2019-91 |
| Date of Issue | 2020-02-26 (MBE) |
| Conference Information | |
| Committee | NC / MBE |
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| Conference Date | 2020/3/4(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | University of Electro Communications |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Neuro Computing, Medical Engineering, etc. |
| Chair | Hayaru Shouno(UEC) / Taishin Nomura(Osaka Univ.) |
| Vice Chair | Kazuyuki Samejima(Tamagawa Univ) / Takashi Watanabe(Tohoku Univ.) |
| Secretary | Kazuyuki Samejima(NAIST) / Takashi Watanabe(NTT) |
| Assistant | Takashi Shinozaki(NICT) / Ken Takiyama(TUAT) / Yasuyuki Suzuki(Osaka Univ.) / Akihiro Karashima(Tohoku Inst. of Tech.) |
| Paper Information | |
| Registration To | Technical Committee on Neurocomputing / Technical Committee on ME and Bio Cybernetics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Adaptive Noise Canceller for Clinical Use in the Presence of Frequency-Varying AC Noise |
| Sub Title (in English) | |
| Keyword(1) | Periodic interference |
| Keyword(2) | Adaptive filter |
| Keyword(3) | Differential characteristics |
| 1st Author's Name | Yuya Fukuta |
| 1st Author's Affiliation | Aichi Prefectural University(Aichi Prefectural Univ.) |
| 2nd Author's Name | Naohiro Toda |
| 2nd Author's Affiliation | Aichi Prefectural University(Aichi Prefectural Univ.) |
| Date | 2020-03-05 |
| Paper # | MBE2019-91 |
| Volume (vol) | vol.119 |
| Number (no) | MBE-452 |
| Page | pp.pp.57-62(MBE), |
| #Pages | 6 |
| Date of Issue | 2020-02-26 (MBE) |