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Paper Abstract and Keywords
Presentation 2007-11-22 16:50
Earthquake Onset Detection using Spectro-Ratio on Multi-Threshold Time-Frequency Sub-Band
Ali G. Hafez, Tahir A. Khan, T. Kohda (Kyushu Univ.) NLP2007-106
Abstract (in Japanese) (See Japanese page) 
(in English) Automatic onset detection and picking algorithm has been proposed by applying the spectro-ratio on time-frequency sub-band. The proposed algorithm does not need any parameter settings as it will work on data generated by any kind of seismometer either short, long period or even very broad band seismometer. Our algorithm is applied on local events from Cairo region recorded by three stations of the Egyptian National Seismic Network (ENSN). Maximum standard deviation is observed to be 0.113 seconds of the corresponding manual picks made by analysts.
Keyword (in Japanese) (See Japanese page) 
(in English) p-wave arrival / STA/LTA / Spectrogram / TFR / Spectro-Ratio / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 349, NLP2007-106, pp. 61-64, Nov. 2007.
Paper # NLP2007-106 
Date of Issue 2007-11-15 (NLP) 
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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Conference Information
Committee NLP  
Conference Date 2007-11-22 - 2007-11-22 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To NLP 
Conference Code 2007-11-NLP 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Earthquake Onset Detection using Spectro-Ratio on Multi-Threshold Time-Frequency Sub-Band 
Sub Title (in English)  
Keyword(1) p-wave arrival  
Keyword(2) STA/LTA  
Keyword(3) Spectrogram  
Keyword(4) TFR  
Keyword(5) Spectro-Ratio  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Ali G. Hafez  
1st Author's Affiliation Dept. Computer Science and Comm. Eng., Kyushu University (Kyushu Univ.)
2nd Author's Name Tahir A. Khan  
2nd Author's Affiliation Dept. Computer Science and Comm. Eng., Kyushu University (Kyushu Univ.)
3rd Author's Name T. Kohda  
3rd Author's Affiliation Dept. Computer Science and Comm. Eng., Kyushu University (Kyushu Univ.)
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Speaker Author-1 
Date Time 2007-11-22 16:50:00 
Presentation Time 25 minutes 
Registration for NLP 
Paper # NLP2007-106 
Volume (vol) vol.107 
Number (no) no.349 
Page pp.61-64 
#Pages 4 
Date of Issue 2007-11-15 (NLP) 

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