Presentation 2019-12-12
A Consideration on a Reception of Electromagnetic Wave Signals at the Sea Level in the Shallow Sea Area
Nozomu Ishii, Masaharu Takahashi, Ryosuke Kato, Qiang Chen, Hiroshi Yoshida,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In order to estimate the position of a diver in a submarine search at the time of a flood accident in shallow water, we used a receiver attached to three or more buoys installed on the surface of the sea to receive electromagnetic signals radiated from a transmitter attached to the diver. We are considering focusing on the received power level. So far, we have verified the proposed positioning algorithm on the assumption that the transmitting and receiving antennas transmit and receive electromagnetic waves with the same linear polarization. In practice, the direction of the diver transmitter changes from time to time and is not necessarily consistent with the polarization of the receiving antenna. In this report, we verify the transmission characteristic distribution between the transmitting and receiving antennas by means of numerical simulation and pseudo-scale model experiment in the case of using a cross dipole antenna that can receive orthogonal two polarized waves parallel to the sea surface as an antenna attached to the buoy receiver.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Sea Water / Position Estimation / Electromagnetic Fields / FDTD / Pseudo Scale Model / Cross Dipole Antenna
Paper # AP2019-143
Date of Issue 2019-12-05 (AP)

Conference Information
Committee AP
Conference Date 2019/12/12(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Kikai-Shinko-Kaikan Bldg.
Topics (in Japanese) (See Japanese page)
Topics (in English) Antennas and Propagation
Chair Qiang Chen(Tohoku Univ.)
Vice Chair Satoru Kurokawa(AIST)
Secretary Satoru Kurokawa(Mitsubishi Electric)
Assistant Michitaka Ameya(AIST)

Paper Information
Registration To Technical Committee on Antennas and Propagation
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Consideration on a Reception of Electromagnetic Wave Signals at the Sea Level in the Shallow Sea Area
Sub Title (in English)
Keyword(1) Sea Water
Keyword(2) Position Estimation
Keyword(3) Electromagnetic Fields
Keyword(4) FDTD
Keyword(5) Pseudo Scale Model
Keyword(6) Cross Dipole Antenna
1st Author's Name Nozomu Ishii
1st Author's Affiliation Niigata University(Niigata Univ.)
2nd Author's Name Masaharu Takahashi
2nd Author's Affiliation Chiba University(Chiba Univ.)
3rd Author's Name Ryosuke Kato
3rd Author's Affiliation Chiba University(Chiba Univ.)
4th Author's Name Qiang Chen
4th Author's Affiliation Tohoku University(Tohoku Univ.)
5th Author's Name Hiroshi Yoshida
5th Author's Affiliation Japan Agency for Marine-Earth Science and Technology(JAMSTEC)
Date 2019-12-12
Paper # AP2019-143
Volume (vol) vol.119
Number (no) AP-336
Page pp.pp.7-12(AP),
#Pages 6
Date of Issue 2019-12-05 (AP)