Paper Abstract and Keywords |
Presentation |
2017-05-22 14:45
Distortion-Free AGC/ALC for Fetal Doppler Audio Signal Envelop Seiji Matsumoto (Asahikawa Med. Univ. Hospital), Manabu Koda (Akibagaoka Lab.), Yasuhito Takeuchi (Asahikawa Med. Univ.) US2017-17 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Abstract: When applying an instantaneous AGC/ALC to fetal Doppler signal, the envelop distortion caused by rapid gain changing on attack process causes erroneous or uncertain heart rate measurement due to modified envelop of the signal. The syndrome can’t be solved only by adjusting its attack and/or decay time constant. In this study we try to use detoured/delayed signal AGC/ALC system where the delayed main channel gain is controlled by un-delayed sub channel AGC/ALC control parameter, in order not to distort envelop of heart beat signal. This method was found effective in experiment, however, in real signal a variety of other variation prevented its unanimous effectiveness. The project is left open for further study. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Doppler / Fetal Monitoring / AGC / ALC / Attack / Decay / Heart Rate Variability / |
Reference Info. |
IEICE Tech. Rep., vol. 117, no. 41, US2017-17, pp. 19-21, May 2017. |
Paper # |
US2017-17 |
Date of Issue |
2017-05-15 (US) |
ISSN |
Print edition: ISSN 0913-5685 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) |
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US2017-17 |
Conference Information |
Committee |
US |
Conference Date |
2017-05-22 - 2017-05-22 |
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(See Japanese page) |
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Paper Information |
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US |
Conference Code |
2017-05-US |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Distortion-Free AGC/ALC for Fetal Doppler Audio Signal Envelop |
Sub Title (in English) |
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Keyword(1) |
Doppler |
Keyword(2) |
Fetal Monitoring |
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AGC |
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ALC |
Keyword(5) |
Attack |
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Decay |
Keyword(7) |
Heart Rate Variability |
Keyword(8) |
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1st Author's Name |
Seiji Matsumoto |
1st Author's Affiliation |
Asahikawa Medical University Hospital (Asahikawa Med. Univ. Hospital) |
2nd Author's Name |
Manabu Koda |
2nd Author's Affiliation |
Akibagaoka Laboratory (Akibagaoka Lab.) |
3rd Author's Name |
Yasuhito Takeuchi |
3rd Author's Affiliation |
Asahikawa Medical University (Asahikawa Med. Univ.) |
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Speaker |
Author-1 |
Date Time |
2017-05-22 14:45:00 |
Presentation Time |
25 minutes |
Registration for |
US |
Paper # |
US2017-17 |
Volume (vol) |
vol.117 |
Number (no) |
no.41 |
Page |
pp.19-21 |
#Pages |
3 |
Date of Issue |
2017-05-15 (US) |
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