Research for Seismic Electromagnetic Phenomena in VHF and MF Bands
VHF和MF频段地震电磁现象研究
基本信息
- 批准号:20560362
- 负责人:
- 金额:$ 2.91万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2008
- 资助国家:日本
- 起止时间:2008 至 2010
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Received levels of non-line-of-sight in VHF and MF bands have been continuously observed in day and night. Observation results as follows: The received levels in MF band fluctuated with good correlation at sunrise and sunset. The received levels in VHF band frequently increased about 20 dB in midnight. It was confirmed that the phenomenon was due to fluctuation of aerological atmospheric refractivity. Tohoku-Pacific Ocean Earthquake occurred on 11th March 2011. It was confirmed that the electromagnetic phenomenon associated with the earthquake was feebler than that with aerological atmospheric refractivity.
在甚高频和中频波段接收到的非视距水平在白天和黑夜都得到持续观测。观测结果表明:在日出和日落时,中频波段接收电平起伏较大,相关性较好。午夜时分,VHF频段接收电平经常升高约20 dB.证实了这一现象是由于高空气象活动的波动造成的。2011年3月11日发生的东北太平洋大地震。证实了与地震有关的电磁现象比高空大气活动的电磁现象弱。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
PROPOSAL OF HUMAN DETECTION SYSTEM USING 1-SEG TUNER
使用 1-SEG 调谐器的人体检测系统的提案
- DOI:
- 发表时间:2009
- 期刊:
- 影响因子:0
- 作者:M. Nishi;K. Kodama;K. Shin;T. Yoshida
- 通讯作者:T. Yoshida
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YOSHIDA Teruaki其他文献
YOSHIDA Teruaki的其他文献
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{{ truncateString('YOSHIDA Teruaki', 18)}}的其他基金
Research on Over-reach Interference Propagations for Non-line-of-sight Terrestrial Digital Television
非视距地面数字电视超距干扰传播研究
- 批准号:
23360174 - 财政年份:2011
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Observations of CD-seismic Electromagnetic Phenomena in VHF Band
VHF波段CD地震电磁现象的观测
- 批准号:
14550367 - 财政年份:2002
- 资助金额:
$ 2.91万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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