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Research Areas
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Measurement engineering
From School
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Kanazawa University Graduate School of Natural Science and Technology Division of Electrical Engineering and Computer Science Graduated
2020.04 - 2023.03
Notes：Doctoral Program
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Kanazawa University Graduate School of Natural Science and Technology Division of Electrical Engineering and Computer Science Graduated
2015.04 - 2017.03
Notes：Master's Program
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Kanazawa University College of Science and Engineering School of Electrical and Information Engineering Graduated
2011.04 - 2015.03
External Career
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Kyoto University Graduate School of Engineering Department of Electrical Engineering Assistant Professor
2023.04 - 2024.03
Country：Japan
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Information Technology R&D Center, Mitsubishi Electric Corporation
2017.04 - 2020.03
Professional Memberships
Papers
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Complex Number Assignment in the Topology Method for Heartbeat Interval Estimation Using Millimeter-Wave Radar Reviewed
Yuji Tanaka, Kimitaka Sumi, Itsuki Iwata, Takuya Sakamoto
IEEE Sensors Letters 8 ( 3 ) 1 - 4 2024.03
Authorship：Lead author, Corresponding author Publishing type：Research paper (scientific journal)
The topology method is an algorithm for accurate estimation of instantaneous
heartbeat intervals using millimeter-wave radar signals. In this model, feature
points are extracted from the skin displacement waveforms generated by
heartbeats and a complex number is assigned to each feature point. However,
these numbers have been assigned empirically and without solid justification.
This study used a simplified model of displacement waveforms to predict the
optimal choice of the complex number assignments to feature points
corresponding to inflection points, and the validity of these numbers was
confirmed using analysis of a publicly available dataset.DOI： 10.1109/LSENS.2024.3364393
Other Link： http://arxiv.org/pdf/2310.11149v1
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A Bayesian k-vector estimation method for electromagnetic waves in magnetized cold plasma Reviewed
Yuji Tanaka, Mamoru Ota, Shoya Matsuda, Yoshiya Kasahara
URSI Radio Science Bulletin 2021 ( 378 ) 77 - 82 2023.10
Authorship：Lead author, Corresponding author Publishing type：Research paper (scientific journal) Publisher：Institute of Electrical and Electronics Engineers (IEEE)
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Propagation Analysis Method Considering Angular Spread for Random Electromagnetic Waves in Magnetized Cold Plasma Reviewed
Mamoru Ota, Yuji Tanaka, Yoshiya Kasahara
Radio Science 58 ( 9 ) 2023.09
Publishing type：Research paper (scientific journal) Publisher：American Geophysical Union (AGU)
Abstract
Random waves can be described as the sum of numerous plane waves, and stochastic processes describe their properties. Various methods have been used to widely investigate the propagation characteristics of electromagnetic waves in magnetized cold plasma based on a single‐plane wave approximation. On the other hand, the properties of random waves are difficult to analyze using these methods. Instead, a framework of the wave distribution function (WDF) should be employed. In this study, we provide an explicit expression for an integration kernel in a magnetized cold plasma used for the WDF method. We show that the kernel can be approximated in the case of ultralow frequency/very low frequency (ULF/VLF) parts of whistler‐mode waves with quasi‐parallel propagation. We also propose a method for estimating a WDF representing a directional distribution of the wave energy density based on the principle of maximum entropy using three‐component spectral matrix data of the magnetic field. Based on the insights obtained from the proposed method, we define a quantity called “sharpness,” which provides spreading of wave normal angles. The sharpness is particularly effective in showing the spread of the wave normal angles for random non‐single‐plane waves. Compared with the conventional methods which evaluate the propagation properties (such as planarity), the “sharpness” exhibited a low calculation load and can be implemented easily for onboard processing.DOI： 10.1029/2023rs007673
Other Link： https://agupubs.onlinelibrary.wiley.com/doi/pdf/10.1029/2023RS007673
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Radar-Based Estimation of Human Body Orientation Using Respiratory Features and Hierarchical Regression Model Reviewed
Wenxu Sun, Shunsuke Iwata, Yuji Tanaka, Takuya Sakamoto
IEEE Sensors Letters 7 ( 9 ) 1 - 4 2023.09
Publishing type：Research paper (scientific journal) Publisher：Institute of Electrical and Electronics Engineers (IEEE)
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Identification Approach of Arriving Wave Model Based on Likelihood Ratio Test With Different Sensor Noise Levels Reviewed
Yuji Tanaka, Mamoru Ota, Yoshiya Kasahara
Radio Science 57 ( 8 ) 2022.08
Authorship：Lead author, Corresponding author Publishing type：Research paper (scientific journal)
DOI： 10.1029/2022RS007427
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Noise Integration Kernel Design for the Wave Distribution Function Method: Robust Direction Finding With Different Sensor Noise Levels Reviewed
Yuji Tanaka, Mamoru Ota, Yoshiya Kasahara
Radio Science 56 ( 9 ) 2021.09
Authorship：Lead author Publishing type：Research paper (scientific journal)
DOI： 10.1029/2021RS007291
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あけぼの衛星の大規模データセットを用いた自然波動の分類に関する研究 Reviewed
田中裕士, 後藤由貴, 笠原禎也, 南保英孝
電子情報通信学会論文誌 J101-D ( 1 ) 225 - 234 2018.01
Authorship：Lead author Publishing type：Research paper (scientific journal)
Misc
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A Study for Visualizing Accuracy in Body Orientation Estimation with Millimeter-Wave Radar
Yuji Tanaka, Wenxu Sun, Takuya Sakamoto
123 ( 370 ) 73 - 77 2024.01
Authorship：Lead author
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Automatic Data Extraction Method for Noncontact Blood Pressure Measurement Using Array Radar System
Yuya Tanaka, Yuji Tanaka, Takuya Sakamoto
123 ( 370 ) 67 - 72 2024.01
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A Study on Complex Number Assignments for Heart Interbeat Interval Estimation Using Topology Method with Millimeter-wave Radar
Yuji Tanaka, Kimitaka Sumi, Itsuki Iwata, Takuya Sakamoto
123 ( 217 ) 141 - 146 2023.10
Authorship：Lead author Language：Japanese
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Accurate Imaging Using Boundary Scattering Transform for Circular Scanning of Millimeter-Wave Radar
Masaya Kato, Yuji Tanaka, Takuya Sakamoto
123 ( 117 ) 243 - 248 2023.07
Language：Japanese
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Study of measurable distances in vital sign sensing using millimeter-wave radar
Itsuki Iwata, Yuji Tanaka, Takuya Sakamoto
IEICE Technical Report 123 ( 117 ) 249 - 254 2023.07
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Automatic Estimation of the Number of People for the Tracking of Pedestrians Using Millimeter-Wave Radar
Haruto Kobayashi, Yu Oshima, Itsuki Iwata, Masaya Kato, Yuji Tanaka, Takuya Sakamoto
IEICE Technical Report 123 ( 117 ) 255 - 259 2023.07
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無線通信システムにおける拡張シャハラン法の干渉波抑圧に関する一検討
田中 裕士, 高橋 善樹, 高橋 龍平
119 ( 486 ) 61 - 66 2020.03
Authorship：Lead author
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HF 海洋レーダを用いたパッシブレーダにおける拡張 HQR 法による高分解能距離推定
高橋 善樹, 高橋 龍平, 大島 正資, 田中 裕士
119 ( 486 ) 19 - 24 2020.02
Presentations
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Numerical Evaluation of Source Localization Method Based on Electric Field Analysis Using High-Resolution Human Head Model
Masamune Niitsu, Yuji Tanaka, Chun-Ren Phang, Sachiko Kodera, Toshiaki Wasaka, Akimasa Hirata
2024.04
Language：Japanese Presentation type：Oral presentation (general)
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A Study on Integral Interval in Synthetic Aperture Radar Imaging for Near-Field Finite-Size Targets
Masaya Kato, Yuji Tanaka, Takuya Sakamoto
2024.03
Language：Japanese Presentation type：Oral presentation (general)
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Radar-Based People Counting and Association of Multiple Echoes Using Correlation of Physiological Signals
Shoma Nagata, Yuji Tanaka, Takuya, Sakamoto
2024.03
Language：Japanese Presentation type：Oral presentation (general)
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特徴量変換を利用した自然電波のクラスタリングの検討
田中 裕士, 後藤 由貴, 笠原 禎也, 南保 英孝
2017 年電子情報通信学会総合大会 2017.03
Presentation type：Oral presentation (general)
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特徴量の白色化に基づく大規模自然波動データのクラスタリング
田中 裕士, 後藤 由貴, 笠原 禎也
研究集会「宇宙環境の理解に向けての統計数理的アプローチ」 2016.10
Presentation type：Oral presentation (general)
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無線通信システムにおけるシャハラン法による干渉波抑圧のための所望波相関行列算出方法
田中 裕士, 高橋 善樹, 高橋 龍平
2019 年電子情報通信学会ソサイエティ大会 2019.09
Presentation type：Oral presentation (general)
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Association of Multiple Human Targets Using Heartbeat Components for Data Fusion of Multiple Array Radar Systems
Yu Oshima, Yuji Tanaka, Takuya Sakamoto
2024.03
Language：Japanese Presentation type：Oral presentation (general)
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尤度比検定に基づく到来波モデル判別手法の検出力評価
田中 裕士, 笠原 禎也, 太田 守
2022 年電子情報通信学会総合大会 2022.03
Presentation type：Oral presentation (general)
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尤度比検定に基づく到来波モデル判別手法のホイスラモード波動検出性能に関する検討
田中 裕士, 太田 守, 松田 昇也, 笠原 禎也
第 18 回 ERG サイエンス会議 / 名大 ISEE 共同研究集会 2023.03
Presentation type：Oral presentation (general)
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Automatic Parameter Optimization of Topology Method for Noncontact Heart Rate Measurement Using Radar
Kimitaka Sumi, Yuji Tanaka, Takuya Sakamoto
2024.03
Language：Japanese Presentation type：Oral presentation (general)
Industrial Property Rights
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磁気センサ装置、磁気センシング方法およびプログラム
田中 裕士, 高橋 善樹, 高橋 龍平
Applicant：三菱電機株式会社
Application no：JP2020017571 Date applied：2020.04
Patent/Registration no：特許第7094472号 Date registered：2022.06
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適応制御装置、適応信号処理装置及びアダプティブアレイアンテナシステム
田中 裕士, 高橋 善樹, 高橋 龍平
Applicant：三菱電機株式会社
Application no：JP2019032982 Date applied：2019.08
Publication no：WO2021-038620 Date published：2021.03
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適応制御装置、適応信号処理装置及びアダプティブアレイアンテナシステム
田中 裕士, 高橋 善樹, 高橋 龍平
Applicant：三菱電機株式会社
Application no：特願2021-541756 Date applied：2019.08
Patent/Registration no：特許第6964833号 Date registered：2021.10
Awards
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The Second Prize of the URSI-JRSM 2022 Student Paper Competition
2022.09 Japan National Committee of URSI
Yuji Tanaka
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Student Presentation Award, Joint conference of Hokuriku chapters of Electrical and information Societies
2022.02 The Institute of Electronics, Information and Communication Engineers Hokuriku
Yuji Tanaka
Scientific Research Funds Acquisition Results
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レーダによる生体情報計測のための特徴点解析手法の確立
Grant number：24K17286 2024.04 - 2027.03
日本学術振興会 科学研究費助成事業 若手研究
田中 裕士
Grant amount：\4550000 （ Direct Cost: \3500000 、 Indirect Cost：\1050000 ）
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レーダによる人体計測のための体方位モデリング手法の確立
Grant number：23K19119 2023.08 - 2025.03
日本学術振興会 科学研究費助成事業 研究活動スタート支援
田中 裕士
Grant amount：\2860000 （ Direct Cost: \2200000 、 Indirect Cost：\660000 ）
Other External Funds
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Support for Pioneering Research Initiated by the Next Generation (SPRING)
2021.10 - 2023.03
Teaching Experience
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Experiments on Introductory Electrical and Electronic Engineering
2024.04 Institution：Nagoya Institute of Technology
Level：Undergraduate (specialized)
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Advanced Practice of Electrical and Electronic Engineering
2023.04 - 2024.03 Institution：Kyoto University
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Practice of Electrical and Electronic Engineering
2023.04 - 2024.03 Institution：Kyoto University