Paper Abstract and Keywords |
Presentation |
2013-09-12 14:00
Adaptive Dynamic Filter Applied for Refinement of Airborne Ultrasound Doppler Signal for Urodynamics Study
-- (2nd report) -- Seiji Matsumoto, Yasuhito Takeuchi, Hidehito Kakizaki (Asahikawa Medical Univ.) US2013-42 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Abstract: Along with our development of airborne ultrasound Doppler system for external non-contact urodymanics study, we devised an adaptive dynamic low-cut filter to refine the signal for simple zero-cross rate method for instantaneous frequency measurement to estimate running urea speed. It suppresses the low frequency component adaptively at every time of varying signal parameter, and helps to avoid low frequency interference artifact which causes under-estimate of instantaneous frequency, and hence urea speed. The mechanism is such that when signal level is excess than predetermined threshold, the filter cut-off f frequency is to be raised until the filter output remains about target value. This method can effectively prevent underestimate of zero-crossing rate measurement for instantaneous frequency due to co-existing low frequency artifact, in the signal. Following up to our 1st report (7) we present now the continuing part. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
airborne ultrasound / Doppler / zero-cross rate / adaptive filter / urodymanics study / / / |
Reference Info. |
IEICE Tech. Rep., vol. 113, no. 201, US2013-42, pp. 13-18, Sept. 2013. |
Paper # |
US2013-42 |
Date of Issue |
2013-09-05 (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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US2013-42 |
Conference Information |
Committee |
US |
Conference Date |
2013-09-12 - 2013-09-12 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tohoku University |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
General |
Paper Information |
Registration To |
US |
Conference Code |
2013-09-US |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Adaptive Dynamic Filter Applied for Refinement of Airborne Ultrasound Doppler Signal for Urodynamics Study |
Sub Title (in English) |
(2nd report) |
Keyword(1) |
airborne ultrasound |
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Doppler |
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zero-cross rate |
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adaptive filter |
Keyword(5) |
urodymanics study |
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1st Author's Name |
Seiji Matsumoto |
1st Author's Affiliation |
Asahikawa Medical University (Asahikawa Medical Univ.) |
2nd Author's Name |
Yasuhito Takeuchi |
2nd Author's Affiliation |
Asahikawa Medical University (Asahikawa Medical Univ.) |
3rd Author's Name |
Hidehito Kakizaki |
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Asahikawa Medical University (Asahikawa Medical Univ.) |
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Speaker |
Author-1 |
Date Time |
2013-09-12 14:00:00 |
Presentation Time |
30 minutes |
Registration for |
US |
Paper # |
US2013-42 |
Volume (vol) |
vol.113 |
Number (no) |
no.201 |
Page |
pp.13-18 |
#Pages |
6 |
Date of Issue |
2013-09-05 (US) |
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