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Title:
Tsunami supervising system
Document Type and Number:
Japanese Patent JP5905646
Kind Code:
B2
Abstract:
A tsunami monitoring system includes a transmitting antenna configured to radiate a transmission signal to detect a tsunami as a radio wave toward a sea, and a receiving antenna configured to receive reflected waves reflected by the tsunami as a receiving signal. The tsunami monitoring system includes a signal generator circuit configured to generate the transmission signal having a predetermined frequency, a signal processor portion configured to generate a beat signal of a frequency difference between the transmission signal and the receiving signal, and a wave height estimator portion configured to divide a radio wave radiation region into a plurality of regions, calculate a flow velocity of a sea surface of the tsunami for each region on the basis of the beat signal, and estimate a wave height of the tsunami from a calculated flow velocity.

Inventors:
Hiroaki Ishikawa
Takashi Kawaso
Takafumi Nagano
Taizo Isono
Application Number:
JP2015519687A
Publication Date:
April 20, 2016
Filing Date:
January 23, 2014
Export Citation:
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Assignee:
Mitsubishi Electric Corporation
International Classes:
G01S13/95; H04W4/90; G01C13/00; H04W4/029; H04W4/38
Domestic Patent References:
JP2010175377A2010-08-12
JP2009229424A2009-10-08
JP2006209712A2006-08-10
JPH07218254A1995-08-18
JPH08292273A1996-11-05
JP2007248293A2007-09-27
JPH11201841A1999-07-30
JP2013020601A2013-01-31
JP2010175377A2010-08-12
JP2009229424A2009-10-08
JP2006209712A2006-08-10
JPH07218254A1995-08-18
Other References:
JPN6015024471; 泉宮尊司、外1名: '"海洋レーダによる海表面流速場を用いた津波のリアルタイム予測に関する研究"' 海岸工学論文集 Vol.52, 2005, p.246-250, 土木学会
JPN6014010038; 山中浩明編: 「シリーズ〈都市地震工学〉2 地震・津波ハザードの評価」 初版, 20100120, p.58-61, 株式会社朝倉書店
JPN6014010039; 高橋智幸: '"津波防災における数値計算の利用"' 日本流体力学会数値流体力学部門Web会誌,[online] 第12巻,第2号, 200411, p.23-32
JPN6015036900; Belinda J. Lipa, et al.: '"HF Radar Detection of Tsunamis"' Journal of Oceanography Vol.62,No.5, 200610, p.705-716
JPN6015036905; 日向博文、外7名: '"紀伊水道における短波海洋レーダを用いた津波・副振動観測"' 土木学会論文集B2(海岸工学) Vol.68,No.2, 2012, p.I_196-I_200
JPN6015036908; 泉宮尊司、外1名: '"時間平均された海表面流速場を用いた津波のリアルタイム予測"' 海洋工学論文集 Vol.53, 2006, p.246-250, 土木学会
Attorney, Agent or Firm:
Mitsuo Tanaka
Takuji Yamada
Akinori Ishino