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| Presentation | 2020-03-05 16:35 Adaptive Noise Canceller for Clinical Use in the Presence of Frequency-Varying AC Noise Yuya Fukuta, Naohiro Toda (Aichi Prefectural Univ.)  MBE2019-91 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (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) |
| (in English) | Periodic interference / Adaptive filter / Differential characteristics / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 119, no. 452, MBE2019-91, pp. 57-62, March 2020. | |
| Paper # | MBE2019-91 | |
| Date of Issue | 2020-02-26 (MBE) | |
| ISSN | Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | MBE2019-91 |
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| Conference Information | |
| Committee | NC MBE |
| Conference Date | 2020-03-04 - 2020-03-06 |
| 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. |
| Paper Information | |
| Registration To | MBE |
| Conference Code | 2020-03-NC-MBE |
| Language | Japanese |
| 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 |
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| 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.) |
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| Speaker | Author-1 |
| Date Time | 2020-03-05 16:35:00 |
| Presentation Time | 25 minutes |
| Registration for | MBE |
| Paper # | MBE2019-91 |
| Volume (vol) | vol.119 |
| Number (no) | no.452 |
| Page | pp.57-62 |
| #Pages | 6 |
| Date of Issue | 2020-02-26 (MBE) |
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