Taishi Hashimoto

J-GLOBAL         Last updated: Sep 19, 2019 at 02:49
 
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Name
Taishi Hashimoto
Affiliation
National Institute of Polar Research
Degree
Ph.D. (Informatics)(Kyoto University)
ORCID ID
0000-0002-7082-9530

Research Areas

 
 

Academic & Professional Experience

 
Sep 2019
 - 
Today
Headquarters, EISCAT Scientific Association
 
Jul 2019
 - 
Today
Arctic Environment Research Center, National Institute of Polar Research
 
May 2019
 - 
Today
Assistant Professor, Space and Upper Atmospheric Sciences Group, National Institute of Polar Research
 
May 2019
 - 
Today
Assistant Professor, Department of Polar Science, Department of Polar Science, School of Multidisciplinary Sciences, Graduate University for Advanced Studies, SOKENDAI
 
Dec 2016
 - 
Apr 2019
Assistant Professor, Graduate School of Informatics, Kyoto University
 
Aug 2016
 - 
Mar 2018
Wintering team, PANSY Researcher, 58th Japanese Antarctic Research Expedition
 
Oct 2016
 - 
Dec 2016
Research Assistant Professor, Graduate School of Informatics, Kyoto University
 
Jun 2012
 - 
Mar 2014
Wintering team, PANSY Researcher, 54th Japanese Antarctic Research Expedition
 

Education

 
Apr 2012
 - 
Sep 2016
Department of Communications and Computer Engineering (Doctor Course), Graduate School of Informatics, Kyoto University
 
Apr 2010
 - 
Mar 2012
Department of Communications and Computer Engineering (Master Course), Graduate School of Informatics, Kyoto University
 
Apr 2005
 - 
Mar 2010
Undergraduate School of Electrical and Electronic Engineering, Faculty of Engineering, Kyoto University
 

Published Papers

 
Taishi Hashimoto, Akinori Saito, Koji Nishimura, Masaki Tsutsumi, Kaoru Sato, Toru Sato
Journal of Atmospheric and Oceanic Technology   36(9) 1881-1888   Sep 2019   [Refereed]
The Program of the Antarctic Syowa Mesosphere–Stratosphere–Troposphere/Incoherent Scatter (PANSY) radar is a large atmospheric radar located at the Antarctic Syowa Station (69.01°S, 39.59°E). The PANSY radar performed the first incoherent scatter ...
Taishi Hashimoto, Koji Nishimura, Masaki Tsutsumi, Kaoru Sato, Toru Sato
Journal of Atmospheric and Oceanic Technology   34(5) 1139-1153   Mar 2017   [Refereed]
This paper presents a novel method for the automatic determination of the diagonal-loading level for robust adaptive beamforming on radar wind profilers. This method balances the degradation of the signal-to-interference ratio with that of the sig...
Taishi Hashimoto, Koji Nishimura, Toru Sato
IEICE TRANSACTIONS on Communications   E99-B(12) 2583-2591   Dec 2016   [Refereed]
The design and performance evaluation is presented of a partially adaptive array that suppresses clutter from low elevation angles in atmospheric radar observations. The norm-constrained and directionally constrained minimization of power (NC-DCMP...
Taishi Hashimoto
Ph.D. thesis (Kyoto University)      Sep 2016
This thesis presents the robust adaptive beamforming techniques for clutter rejection on radar wind profilers.
Recently, phased array has been extensively used for the antenna structure of wind plofilers.
By dividing the array into multiple subgro...
Taishi Hashimoto, Koji Nishimura, Masaki Tsutsumi, Toru Sato
Journal of Atmospheric and Oceanic Technology   35(10) 2749-2757   May 2014   [Refereed]
Strong meteor trail echoes are interferences in the wind velocity estimates made from mesosphere radar observations. Contaminated spectra are detected by their discontinuity and are removed at the risk of greater fluctuations of spectra, leading t...

Conference Activities & Talks

 
Taishi Hashimoto, Koji Nishimura, Akinori Saito, Masaki Tsutsumi, Toru Sato, and Kaoru Sato
39th International Conference on Radar Meteorology   19 Sep 2019   
Taishi Hashimoto, Akinori Saito, Koji Nishimura, Masaki Tsutsumi, Kaoru Sato, and Toru Sato
JpGU2019   31 May 2019   Japan Geoscience Union
The Program of Antarctic Syowa Mesosphere-Stratosphere-Troposphere (MST) / Incoherent Scatter (IS) radar (the PANSY radar) is a large VHF-band atmospheric radar located at Antarctic Syowa Station. Besides the general functionalities of MST radars,...
Taishi Hashimoto, Koji Nishimura, Masaki Tsutsumi, Takuji Nakamura, Toru Sato, Kaoru Sato
The Ninth Symposium on Polar Science   6 Dec 2018   
Taishi Hashimoto, Koji Nishimura, Masaki Tsutsumi, Toru Sato, and Kaoru Sato
AOGS2018 (Asia Oceania Geosciences Society 15th Annual Meeting)   7 Jun 2018   
The Program of the Antarctic Syowa MST/IS radar (the PANSY radar) started its continuous full-system operation in October 2015. This presentation shows the recent scientific and engineering results from the PANSY radar, including the international...
Taishi Hashimoto, Koji Nishimura, Masaki Tsutsumi, Kaoru Sato, and Toru Sato
MST15 (15th International Workshop on Technical and Scientific Aspects of MST Radar)   29 May 2017   
Taishi Hashimoto, Koji Nishimura, Masaki Tsutsumi, Kaoru Sato, and Toru Sato
ISWA (International Symposium on the Whole Atmosphere)   15 Sep 2016   
Taishi Hashimoto, Koji Nishimura, and Toru Sato
ISEC2015 (2015 International Symposium on Earth-Science Challenges)   22 Sep 2015   
Taishi Hashimoto, Koji Nishimura, Masaki Tsutsumi, Toru Sato, and Kaoru Sato
AMS RADARCON 2015 (The 37th Conference on Radar Meteorology)   15 Sep 2015   
Taishi Hashimoto, Koji Nishimura, Masaki Tsutsumi, and Toru Sato
MST14 (The 14th International Workshop on Technical and Scientific Aspects of MST Radar)   30 May 2014   
Taishi Hashimoto, Koji Nishimura, Kaoru Sato, and Toru Sato
MST13 (The 13th International Workshop on Technical and Scientific Aspects of MST radar)   19 Mar 2012   

Research Grants & Projects

 
(Measurement of Far-field radiation pattern of large antennas using unmanned aerial vehicle)
Research Organization of Information and Systems: Challenging Exploratory Research Projects for the Future 2019 (Feasibility Study)
Project Year: Jul 2019 - Mar 2020    Investigator(s): Taishi Hashimoto

Social Contribution

 
Experiment on beamforming
[Lecturer]  National Institute of Polar Research  (Polar Science Museum)  25 Jul 2019