| Paper Abstract and Keywords |
| Presentation |
2009-07-31 11:00
A Study of Transmission System Using AC of One-Seg for Earthquake Early Warning
-- Transmission Characteristics under Noise and Fading Environments --
Makoto Taguchi, Kenichi Murayama (NHK), Hiroyuki Furuta (NHK-ES), Masayuki Takada, Hiroyuki Hamazumi, Kazuhiko Shibuya (NHK) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
An Earthquake Early Warning (EEW) is a service of Japan Meteorological Agency (JMA), which issues the advance warning of a large-scale earthquake before the arrival of its main tremor when it occurs. The service is based on the prompt estimation of the focus and magnitude of the earthquake by analyzing its initial tremor observed near the epicenter. NHK has been automatically broadcasting JMA’s EEW on television and radio programs as soon as it is issued.
The Japanese digital terrestrial television broadcasting system has special carriers called Auxiliary Channel (AC) besides the main signals of video, audio and so on. ACs have advantageous characteristics to be used for the broadcast of an EEW: short delay transmission without any data compression coding such as video or audio information and channel coding such as data interleaving during transmission; robustness against noise and interference due to the use of DBPSK modulation. We studied a transmission of ACs in One-Seg to carry the information of an EEW. The results showed the promising good transmission characteristics under noise and fading environments. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Earthquake Early Warning / One-Seg / AC / Maximal Ratio Combining / / / / |
| Reference Info. |
ITE Tech. Rep., vol. 33, no. 32, BCT2009-69, pp. 43-46, July 2009. |
| Paper # |
BCT2009-69 |
| Date of Issue |
2009-07-23 (BCT) |
| ISSN |
Print edition: ISSN 1342-6893 |
| Download PDF |
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| Conference Information |
| Committee |
BCT HOKKAIDO IEEE-BT |
| Conference Date |
2009-07-30 - 2009-07-31 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Hokkaido Univ. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
BCT |
| Conference Code |
2009-07-BCT-HOKKAIDO-BT |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
A Study of Transmission System Using AC of One-Seg for Earthquake Early Warning |
| Sub Title (in English) |
Transmission Characteristics under Noise and Fading Environments |
| Keyword(1) |
Earthquake Early Warning |
| Keyword(2) |
One-Seg |
| Keyword(3) |
AC |
| Keyword(4) |
Maximal Ratio Combining |
| Keyword(5) |
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| Keyword(6) |
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| 1st Author's Name |
Makoto Taguchi |
| 1st Author's Affiliation |
Japan Broadcasting Corporation (NHK) |
| 2nd Author's Name |
Kenichi Murayama |
| 2nd Author's Affiliation |
Japan Broadcasting Corporation (NHK) |
| 3rd Author's Name |
Hiroyuki Furuta |
| 3rd Author's Affiliation |
NHK Engineering Services (NHK-ES) |
| 4th Author's Name |
Masayuki Takada |
| 4th Author's Affiliation |
Japan Broadcasting Corporation (NHK) |
| 5th Author's Name |
Hiroyuki Hamazumi |
| 5th Author's Affiliation |
Japan Broadcasting Corporation (NHK) |
| 6th Author's Name |
Kazuhiko Shibuya |
| 6th Author's Affiliation |
Japan Broadcasting Corporation (NHK) |
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| Speaker |
Author-1 |
| Date Time |
2009-07-31 11:00:00 |
| Presentation Time |
30 minutes |
| Registration for |
BCT |
| Paper # |
BCT2009-69 |
| Volume (vol) |
vol.33 |
| Number (no) |
no.32 |
| Page |
pp.43-46 |
| #Pages |
4 |
| Date of Issue |
2009-07-23 (BCT) |