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Title:
METHOD AND APPARATUS FOR PREDICTING EARTHQUAKE
Document Type and Number:
Japanese Patent JP2858426
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To locate a radio oscillating source and to predict an earthquake by calculating the source from the arrival time difference of radiated radio waves radiated from the underground by the underground fluctuation, and calculating the underground fluctuation traveling area.
SOLUTION: When the receiving waveform of an antenna is written in a memory for a predetermined period, a feature extracting engine is started. Radiating radio wave detectors (WSD) 100 to 100f are disposed at a predetermined interval, and the WSDs and an underground fluctuation calculator (EPP) 200 are connected via a communication circuit (a). When the waveform feature indicating the underground fluctuation is detected at the waveform data, position data, waveform feature data and sampling time correction data are stored in the memory as sensor information, sent to the circuit (a) via a communication unit 202, and transmitted to the EPP 200. When the sensor information is received, for example, the waveform data is stored in a memory 204, and an oscillating source is calculated by a radiating radio wave oscillating source calculator 210. The source calculator calculates the oscillating source position from the arrival time difference of the radiating radio waves to the antennas.


Inventors:
IWATA KOICHI
HAYASHIDA KENICHI
YOSHIDA MINORU
Application Number:
JP26199095A
Publication Date:
February 17, 1999
Filing Date:
September 18, 1995
Export Citation:
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Assignee:
IWATA KOICHI
TSUUDEN KK
HAKUSAN KOGYO KK
International Classes:
G01V3/12; H01Q21/00; G01V1/00; (IPC1-7): G01V1/00; H01Q21/00
Domestic Patent References:
JP62103596A
JP482404A
JP536000B2
JP5242595B2
JP5315383B2
Other References:
無線工学ハンドブック編纂委員会編,「無線工学ハンドブック」,新版,オーム社,1964年5月25日,P.28−16〜28−17
高橋 耕三,「中国の地震前兆電波観測の現状と我が国での観測法の提案」,通信総合研究所季報,1988,第34巻,第173号,p.245−249
Attorney, Agent or Firm:
Azusa Yuzo