Paper Abstract and Keywords |
Presentation |
2011-11-19 10:30
Distance measurement method measurable from 0m based on power spectrum fluctuation of the interference sound for 1ch observations Noboru Nakasako, Keiji Kawanishi, Toshihiro Shinohara, Tetsuji Uebo (Kinki Univ.) EA2011-92 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In many engineering fields, distance to target is very important information. Typical distance measurement methods use time delay between transmitted and reflected waves, but it is difficult to estimate short distance. On the other hand, a method for measuring short distances using phase interference, which is generated by phase interference of transmitted and reflected waves, is known in the field of microwave radar. However, the minimum measurable distance depends on the bandwidth of transmitted wave. The shorter distance measurement requires the wider bandwith of the transmitted wave. The authors have already proposed the distance eastimation method so as to be able to measure a distance close to 0m, but the method requires two microphones. This paper describes a new distance estimation method measurerable from 0m only using the single microphone. More concretely, we introduce a complex analytic signal instead of power specrum and examine the validity and effectiveness of our method by applying it to an actual sound field. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
phase interference / distance estimation / power spectrum / phase spectrum / range spectrum / 0m / / |
Reference Info. |
IEICE Tech. Rep., vol. 111, no. 306, EA2011-92, pp. 61-66, Nov. 2011. |
Paper # |
EA2011-92 |
Date of Issue |
2011-11-11 (EA) |
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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EA2011-92 |
Conference Information |
Committee |
EA |
Conference Date |
2011-11-18 - 2011-11-19 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kumamoto Univ. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
General Topics |
Paper Information |
Registration To |
EA |
Conference Code |
2011-11-EA |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Distance measurement method measurable from 0m based on power spectrum fluctuation of the interference sound for 1ch observations |
Sub Title (in English) |
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Keyword(1) |
phase interference |
Keyword(2) |
distance estimation |
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power spectrum |
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phase spectrum |
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range spectrum |
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0m |
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1st Author's Name |
Noboru Nakasako |
1st Author's Affiliation |
Kinki University (Kinki Univ.) |
2nd Author's Name |
Keiji Kawanishi |
2nd Author's Affiliation |
Kinki University (Kinki Univ.) |
3rd Author's Name |
Toshihiro Shinohara |
3rd Author's Affiliation |
Kinki University (Kinki Univ.) |
4th Author's Name |
Tetsuji Uebo |
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Kinki University (Kinki Univ.) |
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Speaker |
Author-1 |
Date Time |
2011-11-19 10:30:00 |
Presentation Time |
30 minutes |
Registration for |
EA |
Paper # |
EA2011-92 |
Volume (vol) |
vol.111 |
Number (no) |
no.306 |
Page |
pp.61-66 |
#Pages |
6 |
Date of Issue |
2011-11-11 (EA) |
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