Hagiwara, Tomomichi(Graduate School of Engineering, Division of Electrical Engineering) | Activity Database on Education and Research, Kyoto University

Hagiwara, Tomomichi

Graduate School of Engineering, Division of Electrical Engineering Professor

Last Updated :2025/07/01

Basic Information

Faculty

Faculty of Engineering

Concurrent Affiliation

Institute for Liberal Arts and Sciences, 教授

Professional Memberships

日本鉄鋼協会

The Institute of Electrical and Electronics Engineers

電気学会

システム制御情報学会

計測自動制御学会

Academic Degree

工学修士(京都大学)

工学博士(京都大学)

Academic Resume (Graduate Schools)

京都大学, 大学院工学研究科修士課程電気工学第二専攻, 修了

Academic Resume (Undergraduate School/Majors)

京都大学, 工学部電気工学第二学科, 卒業

Research History

From 1991, To 2001
京都大学助教授

From 1991, To 2001
Kyoto University, Associate Professor

From 2001
- 京都大学教授

From 2001
- Kyoto University, Professor

From 1986, To 1991
京都大学助手

From 1986, To 1991
Kyoto University, Instructor

From 16 Jul. 1986
Kyoto University, Instructor (Research Associate)

Language of Instruction

English

Last Updated :2025/07/01

Research

Research Topics, Overview of the research

Research Topics
Control Theory and Its Applications
Overview of the research
Theory of Design and Analysis of Feedback Control Systems and Its Applications to Real Systems

Research Interests

制御工学

Control Engineering

Research Areas

Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Control and systems engineering

Papers

Stability Conditions for Discrete-Time Stochastic Systems Introduced on Left-Bounded Time Interval
Daiki Hayashi; Yohei Hosoe; Yu Kawano; Tomomichi Hagiwara
IEEE Control Systems Letters, 2025

L₂/L₁ induced norm and Hankel norm analysis in sampled-data systems
T Hagiwara; M Sugiyama
AIMS MATHEMATICS, 2024, Peer-reviewed
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A new quasi-finite-rank approximation of compression operators on L∞[0,H) with applications to sampled-data and time-delay systems: Piecewise linear kernel approximation approach
Dohyeok Kwak; Jung Hoon Kim; Tomomichi Hagiwara
Journal of the Franklin Institute, Dec. 2024

On Existence of Uniformly Marginally Stable Zeros of Linear Sampled-Data Systems and Its Application to Stable Inversion-Based Control
G Park; H Shim; T Hagiwara
IEEE ACCESS, 2024, Peer-reviewed

Internal/External Positivity of Sampled-Data Systems: Definitions and the Necessary and Sufficient Conditions
R Shiga; T Hagiwara; Y Ebihara
IEEE ACCESS, 2024, Peer-reviewed
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Robust Stability Analysis of Sampled-Data Systems With Uncertainties Characterized by the L_∞ - Induced Norm: Gridding Treatment With Convergence Rate Analysis
D Kwak; JH Kim; T Hagiwara
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Dec. 2023, Peer-reviewed

Numerical calculation for discretization of continuous quadratic performance index
Hagiwara, Tomomichi; Saito, Yumi; Araki, Mituhiko
Memoirs of the Faculty of Engineering, Kyoto University, 1989
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A dilated LMI approach to continuous-time gain-scheduled controller synthesis with parameter-dependent Lyapunov variables
Yoshio Ebihara; Kazuki Tomioka; Tomomichi Hagiwara
IFAC Proceedings Volumes (IFAC-PapersOnline), 2003

Discretization of continuous-time controllers based on frequency response of sampled-data systems
Masashi Sawada; Ryouta Mori; Tomomichi Hagiwara
IFAC Proceedings Volumes (IFAC-PapersOnline), 2004

Computing the distance to uncontrollability via LMIs: Lower and upper bounds computation and exactness verification
Yoshio Ebihara; Tomomichi Hagiwara
Proceedings of the IEEE Conference on Decision and Control, 2006

Discretization of continuous-time controllers based on the Hilbert-Schmidt norm of the sampled-data frequency response
Tomomichi Hagiwara; Hiroaki Umeda; Masashi Sawada
Proceedings of the IEEE Conference on Decision and Control, 2006

Generalized S-procedure for inequality conditions on one-vector-lossless sets and linear system analysis
Yoshio Ebihara; Katsutoshi Maeda; Tomomichi Hagiwara
Proceedings of the IEEE Conference on Decision and Control, 2004

Sequential tuning methods of LQ/LQI controllers for multivariable systems and their application to hot strip mills
Yoshio Ebihara; Tomomichi Hagiwara; Mituhiko Araki
Proceedings of the IEEE Conference on Decision and Control, 1999

State predictive control with multiple modification terms and robust stability analysis based on complementary sensitivity functions
Shotaro Yanase; Yoichiro Masui; Kentaro Hirata; Tomomichi Hagiwara
IFAC-PapersOnLine, 2020

Generalized Framework for Gridding Approximation Approach to Yet Another H Norm of Sampled-Data Systems
Jung Hoon Kim; Tomomichi Hagiwara
Proceedings of the IEEE Conference on Decision and Control, 01 Dec. 2019

Generalization of piecewise constant approximation in the L∞/L2 optimal control of sampled-data systems
Jung Hoon Kim; Tomomichi Hagiwara
2019 18th European Control Conference, ECC 2019, 01 Jun. 2019

A Study on the Optimal Controller Synthesis for Minimizing the L 2 Norm of the Response to the Worst-Timing Impulse Disturbance in LTI Sampled-Data Systems
Jung Hoon Kim; Tomomichi Hagiwara
Proceedings of the IEEE Conference on Decision and Control, 18 Jan. 2019

Fast-lifting approach to the computation of the spectrum of retarded time-delay systems
Tomomichi Hagiwara; Kentaro Hirata
2009 European Control Conference, ECC 2009, 26 Mar. 2014

Stochastic Gain-Scheduled Control of Discrete-Time Systems Characterized by Random Polytopes.
Yohei Hosoe; Yuki Michitani; Dimitri Peaucelle; Tomomichi Hagiwara
IEEE Control. Syst. Lett., 2024

Stochastic Gain-Scheduled Control of Discrete-Time Systems Characterized by Random Polytopes
Yohei Hosoe; Yuki Michitani; Dimitri Peaucelle; Tomomichi Hagiwara
IEEE Control Systems Letters, 2024

Robust H2 Analysis of Discrete-Time Linear Systems Characterized by Random Polytopes and Time-Varying Parameters
Taiki Ogura; Yohei Hosoe; Tomomichi Hagiwara
IFAC-PapersOnLine, 01 Jul. 2023

On Second-Moment Stability of Discrete-Time Linear Systems with General Stochastic Dynamics.
Yohei Hosoe; Tomomichi Hagiwara
CoRR, 2019

Cycling-Based Synthesis of Robust Output Estimators for Uncertain LPTV Systems
Yohei Hosoe; Mitsuaki Miyamoto; Tomomichi Hagiwara
SICE Journal of Control, Measurement, and System Integration, 2019

Robust stability analysis of discrete-time systems depending on Markov processes
Hosoe Y.; Hagiwara T.
Proceedings of the Japan Joint Automatic Control Conference, 2016

A Study on Robust Stability Analysis of Discrete-Time Periodically Time-Varying Systems via Noncausal Scaling
Hosoe Yohei; Hagiwara Tomomichi
Proceedings of the Annual Conference of the Institute of Systems, Control and Information Engineers, 2010

Modified State Predictive Control Aiming at Improving Robust Stability
Hagiwara Tomomichi; Yanase Shotaro; Masui Yoichiro; Hirata Kentaro
Transactions of the Institute of Systems, Control and Information Engineers, 15 Jul. 2023
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Quasi L₂/L₂ Hankel Norms and L₂/L₂ Hankel Norm/Operator of Sampled-Data Systems
T. Hagiwara; H. Hara
IEEE Transactions on Automatic Control, Jul. 2023, Peer-reviewed
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Generalized framework for computing the L-8-induced norm of sampled-data systems
D Kwak; JH Kim; T Hagiwara
APPLIED MATHEMATICS AND COMPUTATION, Jan. 2023, Peer-reviewed

サンプル値系の外部非負性と Lq/L_infinity ハンケルノルム解析
萩原朋道
計測自動制御学会論文集, 2023, Peer-reviewed

Contraction Analysis of Discrete-Time Nonlinear Systems with Dynamics Determined by an i.i.d. Process
Michitani Yuki; Hosoe Yohei; Kawano Yu; Hagiwara Tomomichi
Proceedings of the Japan Joint Automatic Control Conference, 2022

H2Performance Analysis and Synthesis for Discrete-Time Linear Systems With Dynamics Determined by an i.i.d. Process
Yohei Hosoe; Takashi Okamoto; Tomomichi Hagiwara
IEEE Control Systems Letters, 2023

State Observer Under Multi-Rate Sensing Environment and Its Design Using l2-Induced Norm
Hiroshi Okajima; Yohei Hosoe; Tomomichi Hagiwara
IEEE Access, 2023
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Robust Control of Discrete-Time Systems With Coefficient Matrices Given by Polytopic Martingales
Tomoya Kitahiro; Yohei Hosoe; Tomomichi Hagiwara
IEEE Control Systems Letters, 2023

Metaheuristics-based approximation of two-dimensional probability distributions for stochastic systems control
Kenta Osaki; Yohei Hosoe; Tomomichi Hagiwara
IFAC-PapersOnLine, 2020

The generalized H-2 controller synthesis problem of sampled-data systems
Jung Hoon Kim; Tomomichi Hagiwara
AUTOMATICA, Aug. 2022, Peer-reviewed

離散化双線形モデルに基づくバックコンバータ出力電圧のSOS手法による非線形制御
楊熙; 蛯原義雄; 萩原朋道
システム制御情報学会論文誌 = Transactions of the Institute of Systems, Control and Information Engineers, Jun. 2022, Peer-reviewed

可観測性と不可観測部分空間に関するWronski行列の零空間からの接近
萩原朋道; 藤井開
システム制御情報学会論文誌, Apr. 2022, Peer-reviewed

<教室通信>電気電子工学科オープンキャンパス2021 --コロナ禍にあって
萩原朋道
Cue, Mar. 2022
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On Second-Moment Stability of Discrete-Time Linear Systems With General Stochastic Dynamics
Yohei Hosoe; Tomomichi Hagiwara
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Feb. 2022, Peer-reviewed

サンプル値系の非負性と L∞ 誘導ノルム
志賀亮介; 萩原朋道; 蛯原義雄
自動制御連合講演会講演論文集, 2021

離散化双線形モデルに基づくバックコンバータ出力電圧のSOS手法による非線形制御
楊煕; 蛯原義雄; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, May 2020

On Discretization of Quadratic Performance Index
HAGIWARA Tomomichi; ARAKI Mituhiko
Transactions of the Society of Instrument and Control Engineers, 1990

A Method of Pole Assignment for Discrete-Time Systems with Delayed Control
HAGIWARA Tomomichi; ARAKI Mituhiko
Transactions of the Society of Instrument and Control Engineers, 1988

<大学の研究・動向> "コンピュータ至当時代"の制御理論研究とその応用
萩原朋道; 蛯原義雄
Cue : 京都大学電気関係教室技術情報誌, Jan. 2006
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LMI-Based Lower Bound Analysis of the Best Achievable H_∞ Performance for SISO Systems
EBIHARA Yoshio; MATSUO Keisuke; HAGIWARA Tomomichi
SICE Journal of Control, Measurement, and System Integration, 2016

Extension of the Concept of Stochastic Polytopes and Robust Stabilization Synthesis
Hosoe Yohei; Hagiwara Tomomichi
Proceedings of the Japan Joint Automatic Control Conference, 2014

Robust Stability Analysis with Cycling-Based LPTV Scaling --Part 2: Its Properties under the Use of FIR Separators
Miyamoto Mitsuaki; Hosoe Yohei; Hagiwara Tomomichi
Proceedings of the Japan Joint Automatic Control Conference, 2014

Robust Stability Analysis with Cycling-Based LPTV Scaling --Part 1: Derivation of Infinite Matrix Representations of Separators
Miyamoto Mitsuaki; Hosoe Yohei; Hagiwara Tomomichi
Proceedings of the Japan Joint Automatic Control Conference, 2014

L-1 optimal controller synthesis for sampled-data systems via piecewise linear kernel approximation
Jung Hoon Kim; Tomomichi Hagiwara
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL, Jul. 2021, Peer-reviewed

On well-definability of the L∞/L₂ Hankel operator and detection of all the critical instants in sampled-data systems
Tomomichi Hagiwara; Akira Inai; Jung Hoon Kim
IET Control Theory & Applications, Mar. 2021, Peer-reviewed
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離散時間非負システムのlq/lp Hankelノルム解析
志賀亮介; 加藤光樹; 蛯原義雄; 萩原朋道
計測自動制御学会論文集, 2021, Peer-reviewed

Linearization of expectation-based inequality conditions in control for discrete-time linear systems represented with random polytopes
Yohei Hosoe; Dimitri Peaucelle; Tomomichi Hagiwara
AUTOMATICA, Dec. 2020, Peer-reviewed

Analysis of Positive Systems Using Copositive Programming
Teruki Kato; Yoshio Ebihara; Tomomichi Hagiwara
IEEE Control Systems Letters, Apr. 2020, Peer-reviewed

確率的スケーリング要素によるスケーリング効果の検証
柳楽勇士; 細江陽平; 萩原朋道
計測自動制御学会論文集, 2020, Peer-reviewed

Computing the L∞-Induced Norm of LTI Systems: Generalization of Piecewise Quadratic and Cubic Approximations
Jung Hoon Kim; Yong Woo Choi; Tomomichi Hagiwara
IEEE Access, 2020, Peer-reviewed

Equivalent Stability Notions, Lyapunov Inequality, and Its Application in Discrete-Time Linear Systems With Stochastic Dynamics Determined by an i.i.d.Process
Yohei Hosoe; Tomomichi Hagiwara
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Nov. 2019, Peer-reviewed

確率系制御のためのL_∞およびL₁ノルムに基づく累積分布関数の近似
細江陽平; 奥野誠也; 萩原朋道
システム制御情報学会論文誌, Jan. 2019, Peer-reviewed

確率的動特性をもつ離散時間系に対する有界実補題
柳楽勇士; 細江陽平; 萩原朋道
計測自動制御学会論文集, 2019, Peer-reviewed

マルチレート系の状態推定のための周期時変状態オブザーバのl2誘導ノルム評価による設計
岡島寛; 細江陽平; 萩原朋道
計測自動制御学会論文集, 2019, Peer-reviewed

モード遷移確率が時変パラメータに依存するマルコフジャンプ系のゲインスケジュールド状態フィードバック設計
柳楽勇士; 松崎弘樹; 細江陽平; 萩原朋道
システム制御情報学会論文誌, 2019, Peer-reviewed

Basic Idea of Periodically Time-Varying Dynamic Quantizer in Networked Control Systems
Hiroshi Okajima; Yohei Hosoe; Tomomichi Hagiwara; Yuki Minami
Proceedings of the SICE Annual Conference 2019, 2019, Peer-reviewed

マルチレート系の状態推定のための周期時変状態オブザーバの$l_2$誘導ノルム評価による設計
岡島寛; 細江陽平; 萩原朋道
計測自動制御学会論文集, 2019, Peer-reviewed

Robust Stability Analysis and State Feedback Synthesis for Discrete-Time Systems Characterized by Random Polytopes
Yohei Hosoe; Tomomichi Hagiwara; DImitri Peaucelle
IEEE Transactions on Automatic Control, 01 Feb. 2018, Peer-reviewed

A discretization approach to the analysis of yet another H2 norm of LTI sampled-data systems
Jung Hoon Kim; Tomomichi Hagiwara
2017 IEEE 56th Annual Conference on Decision and Control, CDC 2017, 18 Jan. 2018, Peer-reviewed

水平連続焼鈍炉の炉内雰囲気動特性のモデル化と水素比制御
崔溶雨; 萩原朋道; 李圭澤
システム制御情報学会論文誌, Jan. 2018, Peer-reviewed

離散化双線形モデルに基づくブーストコンバータ平均出力電圧の非線形出力フィードバック制御
反甫透; 蛯原義雄; 萩原朋道
システム制御情報学会論文誌, Jan. 2018, Peer-reviewed
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許容平均ビットレート制約を満足する周期時変動的量子化器の構成
岡島寛; 細江陽平; 萩原朋道
計測自動制御学会論文集, Jan. 2018, Peer-reviewed

The L∞/L2 Hankel operator/norm of sampled-data systems
Hagiwara, T.; Inai, A.; Kim, J.H.
SIAM Journal on Control and Optimization, Jan. 2018, Peer-reviewed
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Upper/lower bounds of generalized H-2 norms in sampled-data systems with convergence rate analysis and discretization viewpoint
Jung Hoon Kim; Tomomichi Hagiwara
SYSTEMS & CONTROL LETTERS, Sep. 2017, Peer-reviewed
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Characterization of Quasi L∞/L2 Hankel Norms of Sampled-Data Systems
Akira Inai; Tomomichi Hagiwara; Jung Hoon Kim
IFAC-PapersOnLine, 01 Jul. 2017, Peer-reviewed

Kernel Approximation Approach to the L1 Optimal Sampled-Data Controller Synthesis Problem
Jung Hoon Kim; Tomomichi Hagiwara
IFAC-PapersOnLine, 01 Jul. 2017, Peer-reviewed

Robust stability analysis with cycling-based LPTV scaling: part I. Fundamental results on its relationship with lifting-based LPTV scaling
Mitsuaki Miyamoto; Yohei Hosoe; Tomomichi Hagiwara
INTERNATIONAL JOURNAL OF CONTROL, 2017, Peer-reviewed

Robust stability analysis with cycling-based LPTV scaling. Part II: its properties under the use of FIR separators
Mitsuaki Miyamoto; Yohei Hosoe; Tomomichi Hagiwara
INTERNATIONAL JOURNAL OF CONTROL, 2017, Peer-reviewed

Modified State Predictive Control of Continuous-Time Systems with Input Delay
Yoichiro Masui; Kentaro Hirata; Tomomichi Hagiwara
2017 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY (ICIT), 2017, Peer-reviewed

Extensive theoretical/numerical comparative studies on H-2 and generalised H-2 norms in sampled-data systems
Jung Hoon Kim; Tomomichi Hagiwara
INTERNATIONAL JOURNAL OF CONTROL, 2017, Peer-reviewed

H2 performance analysis and synthesis for discrete-time linear systems with stochastic dynamics
Hosoe Yohei; Okamoto Takashi; Hagiwara Tomomichi
Proceedings of the Japan Joint Automatic Control Conference, 2017

On causality of general input-output systems
Nagira Yuji; Hosoe Yohei; Hagiwara Tomomichi
Proceedings of the Japan Joint Automatic Control Conference, 2017

Stability analysis of neutral type time-delay positive systems
Yoshio Ebihara; Naoya Nishio; Tomomichi Hagiwara
Lecture Notes in Control and Information Sciences, 2017, Peer-reviewed

Modified State Predictive Control of Continuous-Time Systems with Input Delay
Yoichiro Masui; Kentaro Hirata; Tomomichi Hagiwara
2017 IEEE INTERNATIONAL CONFERENCE ON INDUSTRIAL TECHNOLOGY (ICIT), 2017, Peer-reviewed

L-1 Discretization for Sampled-Data Controller Synthesis via Piecewise Linear Approximation
Jung Hoon Kim; Tomomichi Hagiwara
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, May 2016, Peer-reviewed
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On Numerical Computation of the Spectrum of Monodromy Operators Based on Higher-Order Hold Approximation
増井詠一郎; 平田健太郎; 萩原朋道
システム制御情報学会論文誌 = Transactions of the Institute of Systems, Control and Information Engineers, Jan. 2016, Peer-reviewed

Further results on the L-1 analysis of sampled-data systems via kernel approximation approach
Jung Hoon Kim; Tomomichi Hagiwara
INTERNATIONAL JOURNAL OF CONTROL, 2016, Peer-reviewed

The L-infinity/L-2 Hankel Norm of Sampled-Data Systems
Tomomichi Hagiwara; Akira Inai; Jung Hoon Kim
2016 IEEE 55TH CONFERENCE ON DECISION AND CONTROL (CDC), 2016, Peer-reviewed

Dual LMI Approach to H-infinity Performance Limitations Analysis of SISO Systems with Multiple Unstable Zeros and Poles
Yoshio Ebihara; Shogo Shintani; Tomomichi Hagiwara
2016 AMERICAN CONTROL CONFERENCE (ACC), 2016, Peer-reviewed

A Study on Discretization Approach to the L-infinity/L-2 Optimal Controller Synthesis Problem in Sampled-Data Systems
Jung Hoon Kim; Tomomichi Hagiwara
2016 IEEE 55TH CONFERENCE ON DECISION AND CONTROL (CDC), 2016, Peer-reviewed

Spectrum of Monodromy Operator for a Time-Delay System With Application to Stability Analysis
Jung Hoon Kim; Tomomichi Hagiwara; Kentaro Hirata
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Dec. 2015, Peer-reviewed

Analysis and synthesis of interconnected positive systems with external inputs
Yoshio Ebihara; Taiki Matsumura; Tomomichi Hagiwara; Dimitri Peaucelle; Denis Arzelier
IFAC-PapersOnLine, 01 Jul. 2015, Peer-reviewed

複数のむだ時間を有する線形非負システムの支配極解析
西尾直也; 蛯原義雄; 萩原朋道
システム制御情報学会論文誌, Apr. 2015, Peer-reviewed

Computing the L-infinity-induced norm of linear time-invariant systems via Kernel approximation and its comparison with input approximation
Jung Hoon Kim; Tomomichi Hagiwara
IET CONTROL THEORY AND APPLICATIONS, Mar. 2015, Peer-reviewed
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<大学の研究・動向>制御技術を支える工学としての制御理論
萩原朋道; 蛯原義雄; 細江陽平
Cue : 京都大学電気関係教室技術情報誌, Mar. 2015
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L-infinity-induced norm analysis of sampled-data systems via piecewise constant and linear approximations
Jung Hoon Kim; Tomomichi Hagiwara
AUTOMATICA, Jan. 2015, Peer-reviewed
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Nonlinear Control with Integral Compensation for Output Voltage of Boost Converters Based on Discretized Bilinear Model―I:―Modeling and Identification
Goto Ryosuke; Ebihara Yoshio; Hagiwara Tomomichi
Transactions of the Institute of Systems, Control and Information Engineers, Jan. 2015, Peer-reviewed
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Nonlinear Control with Integral Compensation for Output Voltage of Boost Converters Based on Discretized Bilinear Model―II:―Derivation of a Control Law and Verification by Experiments
Goto Ryosuke; Ebihara Yoshio; Hagiwara Tomomichi
Transactions of the Institute of Systems, Control and Information Engineers, Jan. 2015, Peer-reviewed
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Induced Norm from L2 to L-infinity in SISO Sampled-Data Systems
Jung Hoon Kim; Tomomichi Hagiwara
2015 AMERICAN CONTROL CONFERENCE (ACC), 2015, Peer-reviewed

L-1 Analysis of LTI Systems via Piecewise Higher-Order Approximation
Yong Woo Choi; Jung Hoon Kim; Tomomichi Hagiwara
2015 IEEE CONFERENCE ON CONTROL AND APPLICATIONS (CCA 2015), 2015, Peer-reviewed

Kernel Approximation Approach to the L-1 Analysis of Sampled-Data Systems
Jung Hoon Kim; Tomomichi Hagiwara
2015 EUROPEAN CONTROL CONFERENCE (ECC), 2015, Peer-reviewed

Computation of the Induced Norm from L-2 to L-infinity in SISO Sampled-Data Systems: Discretization Approach with Convergence Rate Analysis
Jung Hoon Kim; Tomomichi Hagiwara
2015 54TH IEEE CONFERENCE ON DECISION AND CONTROL (CDC), 2015, Peer-reviewed

Computing the L-infinity[0, h)-induced norm of a compression operator via fast-lifting
Jung Hoon Kim; Tomomichi Hagiwara
SYSTEMS & CONTROL LETTERS, May 2014, Peer-reviewed

Conversion of linear time-invariant time-delay feedback systems into delay-differential equations with commensurate delays
Tatsuya Yamazaki; Tomomichi Hagiwara
INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE, 2014, Peer-reviewed

粒子群最適化手法に基づく太陽光発電装置の最大電力点追従制御と実機実験による検証
島本拓和; 蛯原義雄; 萩原朋道
システム制御情報学会論文誌, Jan. 2014, Peer-reviewed

Quasi-finite-rank approximation of compression operators on L-infinity[0, h) with application to stability analysis of time-delay systems
Jung Hoon Kim; Tomomichi Hagiwara
IET CONTROL THEORY AND APPLICATIONS, Jan. 2014, Peer-reviewed

Robust stability analysis based on finite impulse response scaling for discrete-time linear time-invariant systems
Yohei Hosoe; Tomomichi Hagiwara
IET CONTROL THEORY AND APPLICATIONS, Jul. 2013, Peer-reviewed

Unified treatment of robust stability conditions for discrete-time systems through an infinite matrix framework
Yohei Hosoe; Tomomichi Hagiwara
AUTOMATICA, May 2013, Peer-reviewed

Demonstrating the Effectiveness of Robust Performance Synthesis Based on Noncausal Linear Periodically Time-Varying Scaling through Control Experiments of Cart Inverted Pendulum
KATAYAMA Kei; HOSOE Yohei; HAGIWARA Tomomichi
Transactions of the Institute of Systems, Control and Information Engineers, Jan. 2013, Peer-reviewed

LMIを用いた離散時間非負システムの安定性とH∞性能解析
松村大気; 蛯原義雄; 萩原朋道
システム制御情報学会論文誌, Jan. 2013, Peer-reviewed
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Stability Analysis of Discrete-time Interconnected Positive Systems using Weighted l1-induced Norm
Matsumura Taiki; Ebihara Yoshio; Hagiwara Tomomichi
Transactions of the Institute of Systems, Control and Information Engineers, Jan. 2013, Peer-reviewed

Numerical Methods for Spectrum Computation of Monodromy Operators via Non-Causal Hold Discretization
Kentaro Hirata; Tomomichi Hagiwara; Itokazu Atsushi
SICE Journal of Control, Measurement, and System Integration, 2013, Peer-reviewed

L1 analysis of sampled-data systems via fast-lifting and piecewise linear approximation
Jung Hoon Kim; Tomomichi Hagiwara
Proceedings of the IEEE Conference on Decision and Control, 2013, Peer-reviewed

L-1 Analysis of Sampled-Data Systems via Fast-Lifting and Piecewise Linear Approximation
Jung Hoon Kim; Tomomichi Hagiwara
2013 IEEE 52ND ANNUAL CONFERENCE ON DECISION AND CONTROL (CDC), 2013, Peer-reviewed

Robust Performance Controller Synthesis Based on Discrete-Time Noncausal Linear Periodically Time-Varying Scaling
Yohei Hosoe; Tomomichi Hagiwara
ASIAN JOURNAL OF CONTROL, Sep. 2012, Peer-reviewed

Note on Well-Posedness and Separator-Type Robust Stability Theorem of LTI Systems
Tomomichi Hagiwara
SICE Journal on Control, Measurement, and System Integration, 2012, Peer-reviewed

Conversion of Linear Time-Invariant Delay-Differential Equations with External Input and Output into Representation as Time-Delay Feedback Systems
Yamazaki Tatsuya; Tomomichi Hagiwara
SICE Journal on Control, Measurement, and System Integration, 2012, Peer-reviewed

Periodically time-varying controller synthesis for multiobjective H-2/H-infinity control of discrete-time systems and analysis of achievable performance
Yoshio Ebihara; Jun Yamaguchi; Tomomichi Hagiwara
SYSTEMS & CONTROL LETTERS, Sep. 2011, Peer-reviewed

Fast-Lifting Approach to the Computation of the Spectrum of Retarded Time-Delay Systems
Tomomichi Hagiwara; Kentaro Hirata
EUROPEAN JOURNAL OF CONTROL, Mar. 2011, Peer-reviewed

Concatenated solutions of delay-differential equations and their representation with time-delay feedback systems
Tomomichi Hagiwara; Masahiro Kobayashi
INTERNATIONAL JOURNAL OF CONTROL, 2011, Peer-reviewed
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Properties of discrete-time noncausal linear periodically time-varying scaling and their relationship with shift-invariance in lifting-timing
Yohei Hosoe; Tomomichi Hagiwara
INTERNATIONAL JOURNAL OF CONTROL, 2011, Peer-reviewed
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Block checker/diagonal transformation matrices, their properties, and the interplay with fast-lifting
Tomomichi Hagiwara
INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE, 2011, Peer-reviewed

On Sensitivity Reduction Problems of Sampled-Data Systems---Relationships to the Problems of Discrete-Time Systems---
Yoshimichi Ito; Hiroshi Shirahama; Tomomichi Hagiwara
SICE Journal on Control, Measurement, and System Integration, Jun. 2010, Peer-reviewed

Stability Analysis of Sampled-Data Systems with Static Sector Nonlinearities via Causal Linear Periodically Time-Varying Scaling
Kenichi Morioka; Tomomichi Hagiwara
SICE Journal on Control, Measurement, and System Integration, Apr. 2010, Peer-reviewed

Robust Stabilizing Controller Synthesis Based on Discrete-time Noncausal Linear Periodically Time-varying Scaling
HOSOE Yohei; HAGIWARA Tomomichi
Transactions of the Society of Instrument and Control Engineers, Apr. 2010, Peer-reviewed

Robust H_∞ Performance Analysis of LTI Systems with a Single Uncertain Parameter : Asymptotically Exact Construction of a Sequence of Relaxation Problems via Dual LMIs and Non-Asymptotic Exactness Verification
MATSUDA Yusuke; TAHARA Masato; EBIHARA Yoshio; HAGIWARA Tomomichi
Transactions of the Institute of Systems, Control and Information Engineers, Mar. 2010, Peer-reviewed
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A Study on Stability of Optimal Regulators under Online Gain Adjustment
Takayuki Inui; Tomomichi Hagiwara
SICE Journal of Control, Measurement, and System Integration, Feb. 2010, Peer-reviewed

Noncausal linear periodically time-varying scaling for robust stability analysis of discrete-time systems: Frequency-dependent scaling induced by static separators
Tomomichi Hagiwara; Yasuhiro Ohara
AUTOMATICA, Jan. 2010, Peer-reviewed
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Quasi-finite-rank approximation of compression operators in sampled-data systems and time-delay systems
Tomomichi Hagiwara; Kenichi Morioka; Koichiro Okada
INTERNATIONAL JOURNAL OF CONTROL, 2010, Peer-reviewed

Simple Adaptive Control Synthesis Enhanced by Scaling and Its Application to Positioning Control of Antagonist-Type Pneumatic Actuation Mechanism
FUDABA Yudai; EBIHARA Yoshio; HAGIWARA Tomomichi; OKAZAKI Yasunao; KOMATSU Mayumi
Transactions of the Institute of Systems, Control and Information Engineers, Oct. 2009, Peer-reviewed
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Separator-type robust stability theorem of sampled-data systems allowing noncausal LPTV scaling
Tomomichi Hagiwara
AUTOMATICA, Aug. 2009, Peer-reviewed
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Robust Performance Analysis of Uncertain LTI Systems: Dual LMI Approach and Verifications for Exactness
Yoshio Ebihara; Yusuke Onishi; Tomomichi Hagiwara
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, May 2009, Peer-reviewed
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Modified fast-sample/fast-hold approximation and -independent H-discretisation for general sampled-data systems by fast-lifting
Tomomichi Hagiwara; Koichiro Okada
INTERNATIONAL JOURNAL OF CONTROL, 2009, Peer-reviewed
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Further results on periodically time-varying memory state-feedback controller synthesis for discrete-time linear systems
Yoshio Ebihara; Yuki Kuboyama; Tomomichi Hagiwara; Dimitri Peaucelle; Denis Arzelier
Proceedings of the IEEE Conference on Decision and Control, 2009, Peer-reviewed

Constructing a sequence of relaxation problems for robustness analysis of uncertain LTI systems via dual LMIs
Yusuke Matsuda; Yoshio Ebihara; Tomomichi Hagiwara
Proceedings of the IEEE Conference on Decision and Control, 2009, Peer-reviewed

Trajectory Tracking Control of a Two-axis Arm Driven by Pneumatic Artificial Muscles : Application of Plant-variable-optimal Control and Performance Improvement with an Observer Using Pressure Data
KANAMORI Katsuhiro; KIYOTA Shogoro; EBIHARA Yoshio; HAGIWARA Tomomichi; OKAZAKI Yasunao; KOMATSU Mayumi
Transactions of the Society of Instrument and Control Engineers, Nov. 2008, Peer-reviewed

Linear periodically time-varying scaling and its properties
Tomomichi Hagiwara; Ryouta Mori
SYSTEMS & CONTROL LETTERS, Oct. 2008, Peer-reviewed
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Modified Fast-sample/Fast-hold Approximation for Sampled-data System Analysis
Tomomichi Hagiwara; Hiroaki Umeda
EUROPEAN JOURNAL OF CONTROL, Jul. 2008, Peer-reviewed
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On H infinity model reduction for discrete-time linear time-invariant systems using linear matrix inequalities
Yoshio Ebihara; Yoshito Hirai; Tomomichi Hagiwara
ASIAN JOURNAL OF CONTROL, May 2008, Peer-reviewed
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Generalized S-procedure for inequality conditions on one-vector-lossless sets and linear system analysis
Yoshio Ebihara; Katsutoshi Maeda; Tomomichi Hagiwara
SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 2008, Peer-reviewed
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An iterative method with guaranteed convergence for robust performance analysis of sampled-data systems against parameter uncertainties
T. Hagiwara; K. Horiguchi
INTERNATIONAL JOURNAL OF CONTROL, 2007
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An iterative method with guaranteed convergence for robust performance analysis of sampled-data systems against parameter uncertainties
T. Hagiwara; K. Horiguchi
INTERNATIONAL JOURNAL OF CONTROL, 2007, Peer-reviewed
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On the degree of polynomial parameter-dependent Lyapunov functions for robust stability of single parameter-dependent LTI systems: A counter-example to Barmish's conjecture
Yoshio Ebihara; Tomomichi Hagiwara
AUTOMATICA, Sep. 2006
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Exact stability analysis of 2-D systems using LMIs
Yoshio Ebihara; Yoshimichi Ito; Tomomichi Hagiwara
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Sep. 2006
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Robust H_∞ Performance Analysis of Linear Time-Invariant Uncertain Systems via Polynomially Parameter-Dependent Lyapunov Functions
HIRAI Yoshito; EBIHARA Yoshio; HAGIWARA Tomomichi
計測自動制御学会論文集, Jun. 2006, Peer-reviewed

Discussion on: "Transfer functions and statistical analysis of FDLCP systems described by higher-order differential equations"
Tomomichi Hagiwara
European Journal of Control, 2006, Peer-reviewed

A design method of H_\infty state feedback control systems based on the (D,G) scaling and its improvement with iterative computations
Park Sanguk; Ebihara Yoshio; Hagiwara Tomomichi
Proceedings of the Annual Conference of the Institute of Systems, Control and Information Engineers, 2006

A Study on Robust Stability Analysis of Sampled-Data Systems via a Separator-Type Stability Theorem
TANAKA Hiroaki; HAGIWARA Tomomichi
Proceedings of the Annual Conference of the Institute of Systems, Control and Information Engineers, 2006

Trajectory Tracking Control of a Two-Axis Arm Driven by Pneumatic Artificial Muscles Based on the LQ Optimal Control Theory
Kiyota Shogoro; Ebihara Yoshio; Hagiwara Tomomichi; Okazaki Yasunao; Adachi Yuji
Proceedings of the Annual Conference of the Institute of Systems, Control and Information Engineers, 2006

A Design Method of 2DOF-LQI Servo Systems Subject to Actuator Saturation Based on the State-Space Region with Guaranteed L2-Performance
Maeda Katsutoshi; Ebihara Yoshio; Hagiwara Tomomichi
Proceedings of the Annual Conference of the Institute of Systems, Control and Information Engineers, 2006

Robust Strong Positive-Realness Analysis of Sampled-Data Systems against Parameter Uncertainties
Horiguchi Kazuhiro; Hagiwara Tomomichi
Proceedings of the Annual Conference of the Institute of Systems, Control and Information Engineers, 2006

Robust H-infinity Performance Analysis of Linear Time-Invariant Uncertain Systems:Analysis via Polynomially Parameter-Dependent Lyapunov Functions and Its Improvement via an Iterative Method
Hirai Yoshito; Ebihara Yoshio; Hagiwara Tomomichi
Proceedings of the Annual Conference of the Institute of Systems, Control and Information Engineers, 2006

A Study to Assess the Disturbance Response of Control Systems across Switching:L₂ Gain Analysis based on Linear Operator Representations
EBIHARA Yoshio; HAGIWARA Tomomichi
Transactions of the Society of Instrument and Control Engineers, Nov. 2005, Peer-reviewed

A dilated LMI approach to robust performance analysis of linear time-invariant uncertain systems
Y Ebihara; T Hagiwara
AUTOMATICA, Nov. 2005
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Inertia approach to the Hamiltonian eigenvalue tests for frequency-domain inequality conditions
T Hagiwara
DYNAMICS OF CONTINUOUS DISCRETE AND IMPULSIVE SYSTEMS-SERIES B-APPLICATIONS & ALGORITHMS, 2005
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A study on the spectrum of the sampled-data transfer operator with application to robust exponential stability problems
T Hagiwara
SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 2005, Peer-reviewed
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2-regularized Nyquist criterion in linear continuous-time periodic systems and its implementation
J Zhou; T Hagiwara
SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 2005, Peer-reviewed
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New dilated LMI characterizations for continuous-time multiobjective controller synthesis
Y Ebihara; T Hagiwara
AUTOMATICA, Nov. 2004
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Spectral characteristics and eigenvalues computation of the harmonic state operators in continuous-time periodic systems
J Zhou; T Hagiwara; M Araki
SYSTEMS & CONTROL LETTERS, Oct. 2004, Peer-reviewed
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Structured controller synthesis using LMI and alternating projection method
Y Ebihara; K Tokuyama; T Hagiwara
INTERNATIONAL JOURNAL OF CONTROL, Aug. 2004
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On H(infinity) model reduction using LMIs
Y Ebihara; T Hagiwara
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Jul. 2004
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Positive-realness analysis of sampled-data systems and its applications
T Hagiwara; T Mugiuda
AUTOMATICA, Jun. 2004
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Generalized S-procedure for inequality conditions on one-vector-lossless sets and linear system analysis
Y Ebihara; K Maeda; T Hagiwara
2004 43RD IEEE CONFERENCE ON DECISION AND CONTROL (CDC), VOLS 1-5, 2004, Peer-reviewed

Exact stability analysis of 2-D systems using LMIs
Y Ebihara; Y Ito; T Hagiwara
2004 43RD IEEE CONFERENCE ON DECISION AND CONTROL (CDC), VOLS 1-5, 2004, Peer-reviewed

定常ゲインを考慮したモデル低次元化手法とその電力系統縮約への応用
桑原丈; 細川琢磨; 蛯原義雄; 萩原朋道; 森岡靖夫
システム制御情報学会論文誌, Sep. 2003, Peer-reviewed

A Dilated LMI Approach to Continuous-Time Gain-Scheduled Controller Synthesis with Parameter-Dependent Lyapunov Variables
Yoshio Ebihara; Hagiwara Tomomichi
計測自動制御学会論文集, Aug. 2003, Peer-reviewed

Trace formula of linear continuous-time periodic systems via the harmonic Lyapunov equation
J Zhou; T Hagiwara; M Araki
INTERNATIONAL JOURNAL OF CONTROL, 2003, Peer-reviewed
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Trace formula of periodic time-varying systems derived via multiple truncations
J Zhou; T Hagiwara
SICE 2003 ANNUAL CONFERENCE, VOLS 1-3, 2003, Peer-reviewed

A dilated LMI approach to robust performance analysis of linear time-invariant uncertain systems
Y Ebihara; T Hagiwara
PROCEEDINGS OF THE 2003 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 2003, Peer-reviewed

Two-degree-of-freedom design method of state-predictive LQI servo systems
E Furutani; T Hagiwara; M Araki
IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, Sep. 2002
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H-2 and H-infinity norm computations of linear continuous-time periodic systems via the skew analysis of frequency response operators
J Zhou; T Hagiwara
AUTOMATICA, Aug. 2002
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A study on the optimal cost for the H(infinity) problem of discrete linear periodically time-varying systems
S Tanaka; T Hagiwara; M Araki
SIAM JOURNAL ON CONTROL AND OPTIMIZATION, Jul. 2002
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Nyquist stability criterion and positive-realness of sampled-data systems
T Hagiwara
SYSTEMS & CONTROL LETTERS, Apr. 2002
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Existence conditions and properties of the frequency response operators of continuous-time periodic systems
J Zhou; T Hagiwara
SIAM JOURNAL ON CONTROL AND OPTIMIZATION, Mar. 2002
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Stability analysis of continuous-time periodic systems via the harmonic analysis
J Zhou; T Hagiwara; M Araki
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Feb. 2002
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Bisection algorithm for computing the frequency response gain of sampled-data systems - Infinite-dimensional congruent transformation approach (vol 46, pg 369, 2001)
Y Ito; T Hagiwara; H Maeda; M Araki
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Jan. 2002
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Spectral analysis and singular value computations of the noncompact frequency response and compression operators in sampled-data systems
T Hagiwara
SIAM JOURNAL ON CONTROL AND OPTIMIZATION, 2002

Erratum: Bisection algorithm for computing the frequency response gain of sampled-data systems-infinite-dimensional congruent transformation approach (IEEE Trans. Automat. Contr. (2001) 46 (369-381))
Yoshimichi Ito; Tomomichi Hagiwara; Hajime Maeda; Mituhiko Araki
IEEE Transactions on Automatic Control, Jan. 2002, Peer-reviewed
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A dilated LMI approach to robust performance analysis of linear time-invariant uncertain
Y Ebihara; T Hagiwara
SICE 2002: PROCEEDINGS OF THE 41ST SICE ANNUAL CONFERENCE, VOLS 1-5, 2002, Peer-reviewed

H-2 and H-infinity norms of continuous-time periodic systems - The skew truncation approach: Convergence and computations
J Zhou; T Hagiwara
LARGE SCALE SYSTEMS: THEORY AND APPLICATIONS 2001 (LSS'01), 2002, Peer-reviewed

Trace formulas for the H-2 norm of linear continuous-time periodic systems
J Zhou; T Hagiwara; M Araki
PERIODIC CONTROL SYSTEMS 2001, 2002, Peer-reviewed

Multiobjective state-feedback control design with non-common LMI solutions: A subspace approach
Y Ebihara; T Hagiwara
LARGE SCALE SYSTEMS: THEORY AND APPLICATIONS 2001 (LSS'01), 2002, Peer-reviewed

Time-sharing multirate sample-hold controllers and their application to reliable stabilization
Y Ito; T Hagiwara; H Maeda; M Araki
DYNAMICS OF CONTINUOUS DISCRETE AND IMPULSIVE SYSTEMS-SERIES B-APPLICATIONS & ALGORITHMS, Dec. 2001
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Upper and lower bounds of the frequency response gain of sampled-data systems
T Hagiwara; M Suyama; M Araki
AUTOMATICA, Sep. 2001
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Computing frequency response gains of linear continuous-time periodic systems
J Zhou; T Hagiwara
IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, Jul. 2001
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Bisection algorithm for computing the frequency response gain of sampled-data systems - Infinite-dimensional congruent transformation approach
Y Ito; T Hagiwara; H Maeda; M Araki
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Mar. 2001
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Stability analysis of continuous-time periodic systems via the harmonic analysis
J Zhou; T Hagiwara
PROCEEDINGS OF THE 2001 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 2001, Peer-reviewed

Sequential tuning methods of LQ/LQI controllers for multivariable systems and their application to hot strip mills
Y Ebihara; T Hagiwara; M Araki
INTERNATIONAL JOURNAL OF CONTROL, Oct. 2000
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LMI representation of the shifted Popov criterion
Y Kakutani; T Hagiwara; M Araki
AUTOMATICA, May 2000
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Stability Condition for a Class of Nonlinear Sampled-Data Systems-Generalization of the Stability Criteria of Popov Type and Circle-Criterion Type
TANAKA Shunji; HAGIWARA Tomomichi; ARAKI Mituhiko
Transactions of the Institute of Systems, Control and Information Engineers, 15 Oct. 1999

Stability condition of a class of nonlinear feedback systems: Reduction to a convex problem
T Hagiwara; Y Miyake; E Furutani; M Araki
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Aug. 1999, Peer-reviewed
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Simultaneous stabilization and pole assignment by two level controllers consisting of again feedback and a multirate input controller
M Araki; K Fukumitsu; T Hagiwara
JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL-TRANSACTIONS OF THE ASME, Jun. 1999, Peer-reviewed

On the H-infinity Problems for Discrete Periodically Time-varying Systems
Shunji Tanaka; Tomomichi Hagiwara; Mituhiko Araki
Proceedings of the 2nd International Conference on Circuits, Systems and Computers, Oct. 1998, Peer-reviewed

Popov-type criterion for stability of nonlinear sampled-data systems
T Hagiwara; G Kuroda; M Araki
AUTOMATICA, Jun. 1998, Peer-reviewed

Digital Two-Degree-of-Freedom LQI Servo Systems-Design Method and Its Application to Positioning Control of a Pneumatic Servo Cylinder
HAGIWARA Tomomichi; ICHIKI Masato; KANABOSHI Mitsuharu; FUKUMITSU Ken'ichi; ARAKI Mituhiko
Transactions of the Institute of Systems, Control and Information Engineers, 15 Feb. 1998

Upper and lower bounds of the frequency response gain of sampled-data systems
T Hagiwara; M Suyama; M Araki
PROCEEDINGS OF THE 37TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4, 1998, Peer-reviewed

Bisection algorithm for computing the frequency response gain of sampled-data systems
Y Ito; T Hagiwara; H Maeda; M Araki
PROCEEDINGS OF THE 37TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4, 1998, Peer-reviewed

Filtering problem under unreliable sampling
S Tanaka; T Hagiwara; M Araki
ELECTRONICS LETTERS, May 1997, Peer-reviewed

Comments on ’The effect of sampling period on the behaviour of systems incorporating state feedback’
Tomomichi Hagiwara
International Journal of Control, 01 Jan. 1997, Peer-reviewed

Two-degree-of-freedom design method of linear-quadratic servo systems with an integral compensator: Analysis of the performance deterioration by the introduction of an observer
T Hagiwara; E Furutani; M Araki
INTERNATIONAL JOURNAL OF CONTROL, Jul. 1996, Peer-reviewed

Simultaneous pole assignment by multi-structured multirate sampled-data controllers - Orthogonality consideration
T Hagiwara; M Araki; H Soma
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL, Jul. 1996, Peer-reviewed

Absolute stability of sampled-data systems with a sector nonlinearity
T Hagiwara; M Araki
SYSTEMS & CONTROL LETTERS, May 1996, Peer-reviewed

Frequency response of sampled-data systems
M Araki; Y Ito; T Hagiwara
AUTOMATICA, Apr. 1996, Peer-reviewed

Two-degree-of-freedom design method of LQI servo systems: Disturbance rejection by constant state feedback
T Hagiwara; T Yamasaki; M Araki
INTERNATIONAL JOURNAL OF CONTROL, Mar. 1996, Peer-reviewed

Analytic study on the intrinsic zeros of sampled-data systems
Tomomichi Hagiwara
IEEE Transactions on Automatic Control, 1996, Peer-reviewed
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Filtering problem under unreliable sampling
S Tanaka; T Hagiwara; M Araki
PROCEEDINGS OF THE 35TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4, 1996, Peer-reviewed

FR-OPERATOR APPROACH TO THE H-2 ANALYSIS AND SYNTHESIS OF SAMPLED-DATA SYSTEMS
T HAGIWARA; M ARAKI
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Aug. 1995, Peer-reviewed

COMPUTATION OF THE FREQUENCY-RESPONSE GAINS AND H-INFINITY-NORM OF A SAMPLED-DATA SYSTEM
T HAGIWARA; Y ITO; M ARAKI
SYSTEMS & CONTROL LETTERS, Jul. 1995, Peer-reviewed

Preservation of Reachability and Observability under Sampling with a First-Order Hold
Tomomichi Hagiwara
IEEE Transactions on Automatic Control, 1995, Peer-reviewed
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Robust stability of sampled-data systems, under possibly unstable additive/multiplicative perturbations
T HAGIWARA; M ARAKI
PROCEEDINGS OF THE 1995 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 1995, Peer-reviewed

Absolute stability of sampled-data systems with a sector nonlinearity
T Hagiwara; M Araki
PROCEEDINGS OF THE 34TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4, 1995, Peer-reviewed

A SUCCESSIVE OPTIMAL CONSTRUCTION PROCEDURE FOR STATE-FEEDBACK GAINS
T HAGIWARA; M ARAKI
LINEAR ALGEBRA AND ITS APPLICATIONS, May 1994, Peer-reviewed

プラント変数最適LQIサーボ系設計法の電力系統分散制御への応用
田中俊二; 萩原朋道; 荒木光彦
電気学会論文誌C, Mar. 1994, Peer-reviewed

2-DEGREE-OF-FREEDOM DESIGN METHOD OF STATE-PREDICTIVE LQI SERVO SYSTEMS
E FURUTANI; T HAGIWARA; M ARAKI
PROCEEDINGS OF THE 33RD IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4, 1994, Peer-reviewed

2-DEGREE-OF-FREEDOM DESIGN METHOD OF LQI SERVO SYSTEMS .2. DISTURBANCE REJECTION BY DYNAMIC FEEDBACK
T HAGIWARA; T YAMASAKI; M ARAKI
AUTOMATIC CONTROL - WORLD CONGRESS 1993, VOL 2, 1994, Peer-reviewed

FREQUENCY-RESPONSE OF SAMPLED-DATA SYSTEMS .2. CLOSED-LOOP CONSIDERATION
M ARAKI; T HAGIWARA; Y ITO
AUTOMATIC CONTROL - WORLD CONGRESS 1993, VOL 2, 1994, Peer-reviewed

2-DEGREE-OF-FREEDOM DESIGN METHOD OF LQI SERVO SYSTEMS .1. DISTURBANCE REJECTION BY CONSTANT FEEDBACK
T HAGIWARA; T YAMASAKI; M ARAKI
AUTOMATIC CONTROL - WORLD CONGRESS 1993, VOL 2, 1994, Peer-reviewed

STABILITY OF THE LIMITING ZEROS OF SAMPLED-DATA SYSTEMS WITH ZERO-ORDER AND FIRST-ORDER HOLDS
T HAGIWARA; T YUASA; M ARAKI
INTERNATIONAL JOURNAL OF CONTROL, Dec. 1993, Peer-reviewed

OPTIMAL ROBUST SERVO CONTROLLERS WITH 2 DEGREES OF FREEDOM AND APPLICATION TO THE CONTROL OF ELECTRIC-POWER GENERATORS
M FUJIGAKI; T HAGIWARA; M ARAKI
CONTROL-THEORY AND ADVANCED TECHNOLOGY, Jun. 1992, Peer-reviewed

Eigenvalue approach to the calculation of the zeros of a scalar system
T. Hagiwara
Electronics Letters, 1992, Peer-reviewed

ROBUST STABILITY OF SAMPLED-DATA SYSTEMS
M ARAKI; T HAGIWARA
LECTURE NOTES IN CONTROL AND INFORMATION SCIENCES, 1992, Peer-reviewed

APPLICATION OF MULTILEVEL MULTIRATE SAMPLED-DATA CONTROLLERS TO SIMULTANEOUS POLE ASSIGNMENT PROBLEM
M ARAKI; T HAGIWARA; H SOMA
PROCEEDINGS OF THE 31ST IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4, 1992, Peer-reviewed

LIMITING PROPERTIES OF THE ZEROS OF SAMPLED-DATA SYSTEMS WITH ZERO-ORDER AND 1ST-ORDER HOLDS
T HAGIWARA; T YUASA; M ARAKI
PROCEEDINGS OF THE 31ST IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4, 1992, Peer-reviewed

A Design Method of LQI Servo Systems with Two Degrees of Freedom
HAGIWARA Tomomichi; OHTANI Yoshihiro; ARAKI Mituhiko
Transactions of the Institute of Systems, Control and Information Engineers, 1991

GENERALIZED MULTIRATE-OUTPUT CONTROLLERS
T HAGIWARA; T FUJIMURA; M ARAKI
INTERNATIONAL JOURNAL OF CONTROL, Sep. 1990, Peer-reviewed

CONTROLLABILITY INDEXES OF SAMPLED-DATA SYSTEMS
T HAGIWARA; M ARAKI
INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE, Dec. 1988, Peer-reviewed

DESIGN OF A STABLE STATE FEEDBACK CONTROLLER BASED ON THE MULTIRATE SAMPLING OF THE PLANT OUTPUT
T HAGIWARA; M ARAKI
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Sep. 1988, Peer-reviewed
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POLE ASSIGNMENT BY MULTIRATE SAMPLED-DATA OUTPUT-FEEDBACK
M ARAKI; T HAGIWARA
INTERNATIONAL JOURNAL OF CONTROL, Dec. 1986, Peer-reviewed

ON THE NECESSARY CONDITION FOR DISCRETE-TIME POLE-ASSIGNABILITY BY PIECEWISE CONSTANT OUTPUT-FEEDBACK
T HAGIWARA; M ARAKI
INTERNATIONAL JOURNAL OF CONTROL, Jun. 1986, Peer-reviewed

Misc.

車速変化に対応したゲインスケジューリングに基づく自動車横位置の確率的遠隔制御—Stochastic Remote Control of Vehicle Lateral Position Based on Gain Scheduling Following Variation of Vehicle Velocity
西川泰生; 細江陽平; 亀岡翔太; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, May 2024

行動制約付き深層強化学習による古田の振子の非線形制御に関する考察—On nonlinear control of Furuta pendulum by action-constrained deep reinforcement learning
南部佑太朗; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, May 2024

通信遅延が隠れマルコフモデルで表現されるネットワーク化制御系のためのオブザーバ設計—Observer Design for Networked Control Systems with Communication Delays Represented by Hidden Markov Models
河合敦紀; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, May 2023

遠隔制御への活用を目指した通信遅延の隠れマルコフモデルによるモデル化—Modeling Communication Delays with Hidden Markov Models for Applications to Remote Control
井崎壮; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, May 2023

確率的ポリトープと時変パラメータで特徴づけられる確率系に対するロバストH₂性能解析—Robust H₂ analysis of discrete-time linear systems characterized by stochastic polytopes and time-varying parameters
小倉大輝; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, May 2022

確率系の状態フィードバック設計および制御における粒子フィルタの利用—Using Particle Filters for State Feedback Synthesis and Stabilization Control of Stochastic Systems
森山翔太; 大﨑健太; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, May 2021

確率系に対するゲインスケジュールド状態フィードバックのLMIに基づく設計—LMI-Based Synthesis of Gain-Scheduled State Feedback for Stochastic Systems
道谷優貴; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, May 2021

確率的動特性をもつ離散時間線形系のステップ目標値に対する制御—Control of Discrete-Time Linear Systems with Stochastic Dynamics under Step Reference
山岸凌; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, May 2021

確率的動特性をもつ離散時間系に対する有界実補題とその妥当性検証—A bounded real lemma for discrete-time systems with stochastic dynamics and its validity confirmation
後田尚紀; 柳楽勇士; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, May 2020

確率系に対する制御器設計のためのコルモゴロフ距離に基づく多次元確率分布の近似—Approximation of Multidimensional Probability Distributions Based on The Kolmogorov Distance Aiming at Use in Designing Controllers for Stochastic Systems
滝田大暉; 大崎健太; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, May 2020

確率系制御のためのメタヒューリスティックスを用いた2次元確率分布の近似—Metaheuristics-Based Approximation of Two-Dimensional Probability Distributions for Stochastic Systems Control
大崎健太; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, May 2019

モード遷移確率が時変パラメータに依存する確率的スイッチドシステムのゲインスケジューリング制御—Gain Scheduling Control of Stochastic Switched Systems with Mode Transition Probabilities Depending on Time-Varying Parameters
松崎弘樹; 柳楽勇士; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, May 2018

累積分布関数のL∞およびL₁ノルムに基づく近似を用いた確率系の安定化設計—Stabilization Synthesis for Stochastic Systems with Approximation of Cumulative Distribution Functions Based on L∞ and L₁ Norms
奥野誠也; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, May 2018

周波数領域におけるサンプル値制御系の解析と設計
萩原朋道
計測と制御 = Journal of the Society of Instrument and Control Engineers, 10 May 1996

Plant-Variable-Optimal Robust Servo System with Two Degrees of Freedom
HAGIWARA Tomomichi; OHTANI Yoshihiro; ARAKI Mituhiko
Trans. Society of Instrument and Control Engineers, 31 Jan. 1992

Sequential Tuning Methods for Optimal Control Systems and their Application to Hot Strup Mills
EBIHARA Yoshio
材料とプロセス : 日本鉄鋼協会講演論文集 = Current advances in materials and processes : report of the ISIJ meeting, 01 Sep. 1999

時変型ディジタル制御装置 (ディジタル制御理論<特集>)
萩原朋道; 荒木光彦
計測と制御, Dec. 1988

Control System Analysis and Synthesis Using Dilated LMIs
EBIHARA Yoshio; HAGIWARA Tomomichi
Systems, control and information, 15 Sep. 2004

Forewords to the Special Issue on"Contact between concerns in the 21st Century and Control Engineering/Applications"
HAGIWARA Tomomichi
Systems, control and information, 15 Jul. 2003

38th IEEE Conference on Decision and Control
HAGIWARA Tomomichi
Systems, control and information, 15 Apr. 2000

Frequency-Domain Criteria for Input-Output Stability of Lur'e Systems : From Continuous-Time Systems to Sampled-Data Systems
HAGIWARA Tomomichi
Systems, control and information, 15 Nov. 1999

Bisection Method for the Computation of the Frequency Response Gain of Sampled-Data Systems
ITO Yoshimichi; HAGIWARA Tomomichi
Systems, control and information, Jul. 1999

Robust Stability Analysis Based on Dynamic Scaling Employing Laguerre Basis and Kautz Basis
宮本光曜; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, 15 May 2013

L₁誘導ノルムに基づく結合非負システムの分散型安定化状態フィードバック制御
荒木賢輔; 蛯原義雄; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, 15 May 2013

Robust stability analysis of discrete-time systems with polytopic stochastic uncertainties
細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, 15 May 2013

Stability Analysis and Stabilizing State Feedback Synthesis for Positive Quadratic Systems
芦谷勇亮; 蛯原義雄; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, 23 May 2017

Robust Stabilization Output Feedback Control for Discrete-Time Linear Systems with Random Dynamics
福井章悟; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, 23 May 2017

Robust Stabilization State Feedback Control for Stochastic Discrete-Time Descriptor Systems
山内敏嗣; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, 23 May 2017

Energy Management in DC Grids by the Application of Steady-State Characteristic Design of Interconnected Positive Systems
本田智也; 蛯原義雄; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, 25 May 2016

確率的ポリトープで特徴づけられる系に対する状態フィードバックロバストH₂制御
岡本高志; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, 25 May 2016

Robust Stability Analysis and State Feedback Stabilization for Uncertain Stochastic Systems in LFT Representation
三田浩雅; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, 25 May 2016

Causality of general input–output systems and extended small-gain theorem for their feedback connection
Yuji Nagira; Yohei Hosoe; Tomomichi Hagiwara
European Journal of Control, Jan. 2019, Peer-reviewed
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On Stability Analysis Based on Stochastic D-Scaling
Yuji Nagira; Yohei Hosoe; Tomomichi Hagiwara
Proceedings of the IEEE Conference on Decision and Control, Jan. 2019, Peer-reviewed

The l p Induced Norm and the Small-Gain Theorem for Discrete-time Stochastic Systems
Yuji Nagira; Yohei Hosoe; Tomomichi Hagiwara
2018 European Control Conference, ECC 2018, Nov. 2018, Peer-reviewed

Robust Stability Analysis of Discrete-Time Linear Systems with Dynamics Determined by a Markov Process
Yohei Hosoe; Tomomichi Hagiwara
IFAC-PapersOnLine, Jul. 2017, Peer-reviewed

Robust Output Estimator Synthesis Based on Cycling-Based LPTV Scaling
Yohei Hosoe; Mitsuaki Miyamoto; Tomomichi Hagiwara
IFAC-PapersOnLine, 01 Jul. 2017, Peer-reviewed

動的スケーリングに基づく離散時間系のロバスト安定解析
細江陽平; 萩原朋道
システム/制御/情報, Feb. 2016, Peer-reviewed, Invited

Random polytope representation of discrete-time uncertain stochastic switched systems and robust stabilization.
Yohei Hosoe; Yuji Nagira; Tomomichi Hagiwara
2016 European Control Conference, ECC 2016, Aalborg, Denmark, June 29 - July 1, 2016, 2016, Peer-reviewed

Extension of the concept of random polytopes and robust stabilization synthesis.
Yohei Hosoe; Tomomichi Hagiwara
European Control Conference, ECC 2015, Linz, Austria, July 15-17, 2015, 16 Nov. 2015, Peer-reviewed

Structure of Lyapunov Matrices in Stability/H∞ Performance Analysis of Linear Time-Invariant Systems with Positive Subsystems
福場真佑; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, 20 May 2015

Formation Control of Time-Delay Positive Multi-Agent Systems and Convergence Rate Analysis
高橋誠也; 蛯原義雄; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, 20 May 2015

Nonlinear Control Laws and Their Optimality Consideration for Boost Converters Based on Discretized Bilinear Models
反甫透; 蛯原義雄; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, 20 May 2015

Gain-scheduled state feedback synthesis for systems characterized by random polytopes.
Yuji Nagira; Yohei Hosoe; Tomomichi Hagiwara
54th IEEE Conference on Decision and Control, CDC 2015, Osaka, Japan, December 15-18, 2015, 08 Feb. 2015, Peer-reviewed

Robustly Stabilizing State Feedback Synthesis with Reduced Sample Size for Systems Characterized by Stochastic Polytopes
山下拓郎; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, 21 May 2014

Robust stability analysis in the pth moment sense for systems characterized by stochastic polytopes
細江陽平; 玉手修平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, 21 May 2014

Robust Stability Analysis and Synthesis Based on Noncausal LPTV Scaling Using Convex Quadratic Separators
福場真佑; 細江陽平; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, 21 May 2014

Dominant Pole Analysis of Linear Positive Systems with Time-Delays
西尾直也; 蛯原義雄; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, 21 May 2014

Analysis of Interconnected Positive Systems with Communication Delays
朝比奈和希; 蛯原義雄; 萩原朋道
システム制御情報学会研究発表講演会講演論文集, 21 May 2014

Representation Models of Time-Delay Systems and Their Initial Value Problems
HAGIWARA Tomomichi
Systems, control and information, 2014

Computing the L-infinity-Induced Norm of LTI Systems
Jung Hoon Kim; Tomomichi Hagiwara
2014 IEEE 53RD ANNUAL CONFERENCE ON DECISION AND CONTROL (CDC), 2014, Peer-reviewed

Characterization of the Induced Norms from $L_2$ to $L_\infty$ and from $l_2$ to $l_\infty$ and Their Computations
J. H. Kim; T. Hagiwara
SICE Annual Conference 2014, 2014, Peer-reviewed

On Numerical Computation of the Spectrum of Monodromy Operators via Higher-Order Hold Discretization
Y. Masui; K. Hirata; T. Hagiwara
21st International Symposium on Mathematical Theory of Networks and Systems, 2014, Peer-reviewed

A Study on Piecewise Linear Approximation in the $L_1$ Optimal Control Problem of Sampled-Data Systems
J. H. Kim; T. Hagiwara
21st International Symposium on Mathematical Theory of Networks and Systems, 2014, Peer-reviewed

State Feedback Synthesis for Robust Stabilization of Discrete-Time Linear Systems Characterized by Stochastic Polytopes
Yohei Hosoe; Tomomichi Hagiwara
2014 EUROPEAN CONTROL CONFERENCE (ECC), 2014, Peer-reviewed

Robust Stability Analysis of Discrete-Time Linear Systems Characterized by Stochastic Polytopes
Yohei Hosoe; Tomomichi Hagiwara
2014 AMERICAN CONTROL CONFERENCE (ACC), 2014, Peer-reviewed

Manipulation of fluxoid by electromagnetic perturbation
Hikihara, Takashi; Hosoe, Yohei; Hagiwara, Tomomichi
Proc. 2013 International Symposium on Nonlinear Theory and its Applications, Sep. 2013, Peer-reviewed

New Advances in Sampled-Data Control and Digital Control : with Primary Focus on Fast-Lifting and Noncausal Linear Periodically Time-Varying Scaling
HAGIWARA Tomomichi
計測と制御 = Journal of the Society of Instrument and Control Engineers, 10 Apr. 2013

Computing the L-infinity[0, h)-induced norm of a compression operator
Jung Hoon Kim; Tomomichi Hagiwara
2013 EUROPEAN CONTROL CONFERENCE (ECC), 2013, Peer-reviewed

Stability Analysis of Time-Delay Systems Based on a Power of the Monodromy Operator
Yuki Saito; Tomomichi Hagiwara
2013 EUROPEAN CONTROL CONFERENCE (ECC), 2013, Peer-reviewed

Introducing integral compensation into controller synthesis based on noncausal LPTV Scaling and control experiments with cart inverted pendulum
R. Yamamoto; Y. Hosoe; T. Hagiwara
Proceedings of the SICE Annual Conference, 2013, Peer-reviewed

Demonstrating the effectiveness of noncausal lptv scaling through control experiments with cart inverted pendulum
Kei Katayama; Yohei Hosoe; Tomomichi Hagiwara
IFAC Proceedings Volumes (IFAC-PapersOnline), 2013, Peer-reviewed

A Note on Representation of Nonlinear Time-Varying Delay-Differential Equations as Time-Delay Feedback Systems
Tatsuya Yamazaki; Tomomichi Hagiwara
2013 9TH ASIAN CONTROL CONFERENCE (ASCC), 2013, Peer-reviewed

A Study on the Spectrum of Monodromy Operator for a Time-Delay System
Jung Hoon Kim; Tomomichi Hagiwara; Kentaro Hirata
2013 9TH ASIAN CONTROL CONFERENCE (ASCC), 2013, Peer-reviewed

Quasi-Finite-Rank Approximation of Compression Operators Based on L-infinity[0, h]-Induced Norm
Jung Hoon Kim; Tomomichi Hagiwara
2012 PROCEEDINGS OF SICE ANNUAL CONFERENCE (SICE), 2012, Peer-reviewed

Robust Stability Analysis Based on Noncausal LPTV FIR Scaling: Explicit Procedure and Relationship with Causal LTI FIR Scaling
Yohei Hosoe; Tomomichi Hagiwara
2012 IEEE 51ST ANNUAL CONFERENCE ON DECISION AND CONTROL (CDC), 2012, Peer-reviewed

Robust stability analysis based on discrete-time FIR scaling
Y. Hosoe; T. Hagiwara
Proceedings of the American Control Conference, 2012, Peer-reviewed

A note on separator-type robust stability theorem and well-posedness of linear time-invariant systems
T. Hagiwara
Proceedings of the 2011 Australian Control Conference, AUCC 2011, 2011, Peer-reviewed

Robust stability analysis with cycling-based LPTV scaling and its relationship with lifting-based approach
Y. Hosoe; T. Hagiwara
Proceedings of the SICE Annual Conference, 2011, Peer-reviewed

A note on mutual conversion between linear time-invariant delay-differential equations and time-delay feedback systems
T. Yamazaki; T. Hagiwara
Proceedings of the SICE Annual Conference, 2011, Peer-reviewed

Relationship between noncausal linear periodically time-varying scaling and causal linear time-invariant scaling for discrete-time systems
Yohei Hosoe; Tomomichi Hagiwara
IFAC Proceedings Volumes (IFAC-PapersOnline), 2011, Peer-reviewed

Infinite Matrix Representations of Robust Stability Conditions for Discrete-Time Systems
Yohei Hosoe; Tomomichi Hagiwara
2011 50TH IEEE CONFERENCE ON DECISION AND CONTROL AND EUROPEAN CONTROL CONFERENCE (CDC-ECC), 2011, Peer-reviewed

Synthesis of robust performance controllers based on discrete-time noncausal linear periodically time-varying scaling
Yohei Hosoe; Tomomichi Hagiwara
IFAC Proceedings Volumes (IFAC-PapersOnline), Aug. 2010, Peer-reviewed

A Numerical Simulation of Fluxoid Manipulated by External Perturbation
HOSOE Yohei; HAGIWARA Tomomichi; HIKIHARA Takashi
IEICE technical report, 02 Mar. 2010

Fast-lifting approach to the computation of the spectral radius of neutral time-delay systems
T. Hagiwara; T. Fujinami
IFAC Proceedings Volumes (IFAC-PapersOnline), 2010, Peer-reviewed

2DOF control system design for maneuverability matching and gust disturbance rejection in in-flight simulator MuPAL-α
Yoshio Ebihara; Yoshinori Fujiwara; Tomomichi Hagiwara; Masayuki Sato
Proceedings of the SICE Annual Conference, 2010, Peer-reviewed

Effects induced by noncausality of scaling on robust stability analysis of discrete-time periodically time-varying systems
Y. Hosoe; T. Hagiwara
Proceedings of the SICE Annual Conference, 2010, Peer-reviewed

Asymptotic Exactness of Dual LMI Approach for Robust Performance Analysis of Uncertain LTI Systems
Yoshio Ebihara; Yusuke Matsuda; Tomomichi Hagiwara
49TH IEEE CONFERENCE ON DECISION AND CONTROL (CDC), 2010, Peer-reviewed

On numerical computation of the spectrum of a class of integral operators via non-causal hold discretization
K. Hirata; A. Itokazu; T. Hagiwara
IFAC Proceedings Volumes (IFAC-PapersOnline), 2009, Peer-reviewed

Stability analysis of nonlinear sampled-data systems via causal linear periodically time-varying scaling
K. Morioka; T. Hagiwara
ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings, 2009, Peer-reviewed

A study on quadratic stability of optimal regulators under gain adjustment
T. Inui; T. Hagiwara
ICCAS-SICE 2009 - ICROS-SICE International Joint Conference 2009, Proceedings, 2009, Peer-reviewed

Further Results on Periodically Time-Varying Memory State-Feedback Controller Synthesis for Discrete-Time Linear Systems
Yoshio Ebihara; Yuki Kuboyama; Tomomichi Hagiwara; Dimitri Peaucelle; Denis Arzelier
PROCEEDINGS OF THE 48TH IEEE CONFERENCE ON DECISION AND CONTROL, 2009 HELD JOINTLY WITH THE 2009 28TH CHINESE CONTROL CONFERENCE (CDC/CCC 2009), 2009, Peer-reviewed

Constructing a Sequence of Relaxation Problems for Robustness Analysis of Uncertain LTI Systems via Dual LMIs
Yusuke Matsuda; Yoshio Ebihara; Tomomichi Hagiwara
PROCEEDINGS OF THE 48TH IEEE CONFERENCE ON DECISION AND CONTROL, 2009 HELD JOINTLY WITH THE 2009 28TH CHINESE CONTROL CONFERENCE (CDC/CCC 2009), 2009, Peer-reviewed

Frequency-dependent scaling induced by noncausal linear periodically time-varying scaling for discre
T. Hagiwara; Y. Ohara
IFAC Proceedings Volumes (IFAC-PapersOnline), 2008, Peer-reviewed

Extracting worst case perturbations for robustness analysis of parameter-dependent LTI systems
Y. Onishi; Y. Ebihara; T. Hagiwara
IFAC Proceedings Volumes (IFAC-PapersOnline), 2008, Peer-reviewed

Fast-Lifting Approach to Time-Delay Systems: Fundamental Framework
Tomomichi Hagiwara
47TH IEEE CONFERENCE ON DECISION AND CONTROL, 2008 (CDC 2008), 2008, Peer-reviewed

gamma-independent H-infinity-discretization of sampled-data systems by modified fast-sample/fast-hold approximation with fast lifting
Tomomichi Hagiwara; Koichiro Okada
2008 AMERICAN CONTROL CONFERENCE, VOLS 1-12, 2008, Peer-reviewed

Robust performance analysis of uncertain LTI systems: Dual LMI approach and verifications for exactness
Yoshio Ebihara; Yusuke Onishi; Tomomichi Hagiwara
PROCEEDINGS OF THE 46TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-14, 2007, Peer-reviewed

Robust stability analysis of sampled-data systems with noncausal periodically time-varying scaling: Optimization of scaling via approximate discretization and error bound analysis
Tomomichi Hagiwara; Hiroaki Umeda
PROCEEDINGS OF THE 46TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-14, 2007, Peer-reviewed

Further results on computing the distance to uncontrollability via LMIs
Yoshio Ebihara; Tomomichi Hagiwara
2007 AMERICAN CONTROL CONFERENCE, VOLS 1-13, 2007, Peer-reviewed

Robust H₂ performance analysis of uncertain lti systems via polynomially parameter-dependent Lyapunov functions
Y. Ebihara; D. Peaucelle; D. Arzelier; T. Hagiwara
IFAC Proceedings Volumes (IFAC-PapersOnline), 2006, Peer-reviewed

Computing the distance to uncontrollability via LMIs: Lower and upper bounds computation and exactness verification
Yoshio Ebihara; Tomomichi Hagiwara
PROCEEDINGS OF THE 45TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-14, 2006, Peer-reviewed

Discretization of continuous-time controllers based on the Hilbert-Schmidt norm of the sampled-data frequency response
Tomomichi Hagiwara; Hiroaki Umeda; Masashi Sawada
PROCEEDINGS OF THE 45TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-14, 2006, Peer-reviewed

Robust stability analysis of sampled-data systems via periodically time-varying scaling
Tomomichi Hagiwara; Ryouta Mori
2006 AMERICAN CONTROL CONFERENCE, VOLS 1-12, 2006, Peer-reviewed

A study on robust stability analysis of sampled-data systems against parametric uncertainties via a separator-type stability theorem
Tomomichi Hagiwara; Hiroaki Tanaka
2006 SICE-ICASE INTERNATIONAL JOINT CONFERENCE, VOLS 1-13, 2006, Peer-reviewed

Robust D-stability analysis of uncertain polynomial matrices via polynomial-type multipliers
Y. Ebihara; K. Maeda; T. Hagiwara
IFAC Proceedings Volumes (IFAC-PapersOnline), 2005, Peer-reviewed

Finite-dimensional models in evaluating the H₂ norm of continuous-time periodic systems
J. Zhou; T. Hagiwara
IFAC Proceedings Volumes (IFAC-PapersOnline), 2005, Peer-reviewed

Robust performance analysis of linear time-invariant uncertain systems by taking higher-order time-derivatives of the state
Yoshio Ebihara; Dimitri Peaucelle; Denis Arzelier; Tomomichi Hagiwara
2005 44th IEEE Conference on Decision and Control & European Control Conference, Vols 1-8, 2005, Peer-reviewed

On model reduction using LMI's
Y Ebihara; T Hagiwara
PROCEEDINGS OF THE 2004 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 2004, Peer-reviewed

Brief Introduction to Digital and Sampled-Data Control System for Novices
HAGIWARA Tomomichi
計測と制御 = Journal of the Society of Instrument and Control Engineers, 10 Apr. 2003

Harmonic Hamiltonian test for the H-infinity performance in linear continuous-time periodic systems
J Zhou; T Hagiwara; M Araki
42ND IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-6, PROCEEDINGS, 2003, Peer-reviewed

Structured controller synthesis using LMI and alternating projection method
Y Ebihara; T Hagiwara
42ND IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-6, PROCEEDINGS, 2003, Peer-reviewed

Two-degree-of-freedom design method of state-predictive LQI servo systems
E Furutani; T Hagiwara; M Araki
IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, Sep. 2002, Peer-reviewed
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Robust controller synthesis with parameter-dependent Lyapunov variables: A dilated LMI approach
Y Ebihara; T Hagiwara
PROCEEDINGS OF THE 41ST IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4, 2002, Peer-reviewed

New dilated LMI characterizations for continuous-time control design and robust multiobjective control
Y Ebihara; T Hagiwara
PROCEEDINGS OF THE 2002 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 2002, Peer-reviewed

Computing frequency response gains of linear continuous-time periodic systems
J Zhou; T Hagiwara
IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, Jul. 2001, Peer-reviewed
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H-infinity norm computation of continuous-time periodic systems - Asymptotic Hamiltonian test and modified bisection algorithm
J Zhou; T Hagiwara
SICE 2001: PROCEEDINGS OF THE 40TH SICE ANNUAL CONFERENCE, INTERNATIONAL SESSION PAPERS, 2001, Peer-reviewed

Existence conditions and applications of shifting sliding mode control
J Zhou; T Hagiwara
PROCEEDINGS OF THE 40TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-5, 2001, Peer-reviewed

Multiobjective state-feedback control design with non-common LMI solutions: Change of variables via affine functions
Y Ebihara; T Hagiwara; T Shimomura
PROCEEDINGS OF THE 2001 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 2001, Peer-reviewed

Computation of the Frequency Response Gain of Sampled-Data Systems with a Direct-Feedthrough Term
SAWADA Masashi
材料とプロセス : 日本鉄鋼協会講演論文集 = Current advances in materials and processes : report of the ISIJ meeting, 01 Sep. 2000

Further study on the bisection algorithm for the frequency response gain computation of sampled-data systems and related issues
Y Ito; T Hagiwara; H Maeda; M Araki
PROCEEDINGS OF THE 2000 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 2000, Peer-reviewed

Nyquist stability criterion and positive realness of sampled-data systems
T Hagiwara
PROCEEDINGS OF THE 2000 AMERICAN CONTROL CONFERENCE, VOLS 1-6, 2000, Peer-reviewed

Robust stability of sampled-data systems under possibly unstable additive/multiplicative perturbations
T Hagiwara; M Araki
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Sep. 1998
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Optimal observers for disturbance rejection in two-degree-of-freedom LQI servo systems
T Hagiwara; E Furutani; M Araki
IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, Nov. 1997, Peer-reviewed

Developments of Sampled-Data Control Theory
HARA Shinji; HAGIWARA Tomomichi
システム/制御/情報 : システム制御情報学会誌 = Systems, control and information, Jan. 1997

On the structure of H-2-optimal sampled-data controllers
T Hagiwara; Y Monobe; M Araki
PROCEEDINGS OF THE 35TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4, 1996, Peer-reviewed

Stability of sampled-data systems with a time-invariant memoryless sector nonlinearity
T Hagiwara; G Kuroda; M Araki
PROCEEDINGS OF THE 35TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4, 1996, Peer-reviewed

Frequency response gains and H_∞-norm of a sampled-data system
Tomomichi Hagiwara; Yoshimichi Ito; Mituhiko Araki
Proceedings of the IEEE Conference on Decision and Control, 1994, Peer-reviewed

Two-degree-of-freedom design method of LQI servo systems - performance deterioration by the introduction of an observer and optimal observer design
Tomomichi Hagiwara; Eiko Furutani; Mituhiko Araki
Proceedings of the IEEE Conference on Decision and Control, 1994, Peer-reviewed

連続時間系とその離散化 - システム理論的諸性質はいかに継承されるか? -
萩原朋道
計測と制御 = Journal of the Society of Instrument and Control Engineers, 10 Feb. 1993

サンプル値系の極限零点の性質について
萩原朋道; 荒木光彦
電気学会論文誌 C 電子・情報・システム部門誌, Apr. 1990

ON ROBUST STABILITY OF MULTIRATE DIGITAL-CONTROL SYSTEMS
M ARAKI; T HAGIWARA; T FUJIMURA; Y GOTO
PROCEEDINGS OF THE 29TH IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-6, 1990, Peer-reviewed

ON PRESERVATION OF STRONG STABILIZABILITY UNDER SAMPLING
T HAGIWARA; M ARAKI
IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Nov. 1988
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Books and Other Publications

ディジタル制御入門
萩原朋道
コロナ社,, 1999, Not refereed

Awards

May 1988
日本自動制御協会(現システム制御情報学会)椹木記念賞奨励賞an ISCIE Award for Young Authors (unknown official translation from Japanese)

May 1996
電気学術振興賞論文賞an IEEJ Award (unknown official translation from Japanese)

Jun. 1996
小平記念賞Odaira Award (unofficial translation from Japanese)

May 2008
計測自動制御学会論文賞SICE Outstanding Paper Award (unofficial translation from Japanese)

Mar. 2009
計測自動制御学会制御部門大会賞SICE Award of 8th Annual Conference on Control Systems

May 2011
Institute of Systems, Control and Information Engineers, ISCIE Industrial Paper Award

Sep. 2011
Society of Instrument and Control Engineers, SICE Paper Award

May 2014
Institute of Systems, Control and Information Engineers, ISCIE Paper Award

May 2016
Institute of Systems, Control and Information Engineers, ISCIE Paper Award

Mar. 2018
Society of Instrument and Control Engineers, Award of the 4th Multi-Symposium on Control Systems

__ May 1988
日本自動制御協会（現システム制御情報学会）, 椹木記念賞奨励賞

May 1995
電気学会, 電気学術振興賞・論文賞

Jun. 1996
小平記念会, 小平記念賞

Aug. 2008
計測自動制御学会, 計測自動制御学会論文賞

Mar. 2009
計測自動制御学会制御部門, 制御部門大会賞

May 2011
システム制御情報学会, システム制御情報学会産業技術賞

__ Sep. 2011
計測自動制御学会, 計測自動制御学会論文賞

May 2014
システム制御情報学会, システム制御情報学会論文賞

May 2016
システム制御情報学会, システム制御情報学会論文賞

Mar. 2018
計測自動制御学会, 計測自動制御学会制御部門大会賞

External funds: Kakenhi

Quasi Hankel and Relevant Operators together with Their Norm Analysis Aiming at Challenging Control Performance Evaluation
Grant-in-Aid for Scientific Research (C)
Basic Section 21040:Control and system engineering-related
Kyoto University
Tomomichi Hagiwara
From 01 Apr. 2018, To 31 Mar. 2021, Project Closed
ハンケルノルム;サンプル値系;周期時変系;準ハンケルノルム;L_∞/L_2誘導ノルム;H2ノルム;L_2/L_2ハンケルノルム;演算時間遅れ;動的システム;ハンケル作用素;準ハンケル作用素;制御性能規範;離散時間制御器
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18K04198/

New Development for Control Performance Analysis of Continuous-Time and Sampled-Data Systems through Operator Theoretic Approach and Relevant Studies
Grant-in-Aid for Scientific Research (C)
Kyoto University
Tomomichi Hagiwara
From 01 Apr. 2015, To 31 Mar. 2018, Project Closed
サンプル値系;むだ時間系;L∞ノルム;入力近似;核関数近似;高速リフティング;作用素論;H2ノルム;H2性能;L∞/L2誘導ノルム;一般化制御対象の離散化;最適制御器;関数空間L∞;関数空間L2;線形行列不等式;制御系の性能解析
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15K06138/

Enhanced scaling technique for control system analysis/synthesis based on operator theoretic and algebraic approaches
Grant-in-Aid for Scientific Research (C)
Kyoto University
Tomomichi HAGIWARA
From 01 Apr. 2012, To 31 Mar. 2015, Project Closed
サンプル値制御系;むだ時間系;compression 作用素;高速リフティング;スケーリング;作用素近似;非因果的周期時変スケーリング;compression作用素;区分的1次関数近似;誘導ノルム解析;ロバスト安定性;無限行列表現;微分差分方程式
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24560545/

Operator-Theoretic Study on the Synthesis and Analysis of Control Systems via Fast-Lifting and Its Algebraic Extension
Grant-in-Aid for Scientific Research (C)
Kyoto University
Tomomichi HAGIWARA
From 01 Apr. 2009, To 31 Mar. 2012, Project Closed
高速リフティング;サンプル値系;むだ時間系;モノドロミー作用素;非因果的;離散時間系;周期時変スケーリング;準有限ランク近似;伸張型LMI;シフト不変性;サンプル値
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21560461/

Study on Advanced Development and Systematization of Analysis and Design Methods for Control Systems via an Operator-Theoretic Approach
Grant-in-Aid for Scientific Research (C)
Kyoto University
Tomomichi HAGIWARA
From 01 Apr. 2006, To 31 Mar. 2009, Project Closed
サンプル値系;ロバスト安定解析;高速リフティング;周期時変スケーリング;離散時間系;(D,G)スケーリング;線形分数変換;伝達作用素;KYP補題;周期時変系;周波数応答作用素;パラメータ不確かさ;ロバスト性能解析;ディジタル制御装置;ロバスト安定化;非因果的周期時変スケーリン;μ解析
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18560432/

Development and Application of control theory based on organic combination of algebraic and analytic methods
Grant-in-Aid for Scientific Research (C)
KYOTO UNIVERSITY
Tomomichi HAGIWARA
From 01 Apr. 2003, To 31 Mar. 2006, Project Closed
サンプル値系;周期時変系;周波数応答作用素;スペクトル解析;ロバスト安定解析;ロバスト性能解析;調和解析;パラメータ不確かさ;周期時変スケーリング;制御装置離散化;Hilbert-Scbmidtノルム;状態空間での計算法;複素解析;有限次元化, sampled-data systems;periodically time-varying systems;frequency response operators;spectral analysis;robust stability analysis;robust performance analysis;harmonic analysis
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15560375/

A study on the construction of a framework of control theory based on organic combination of algebraic and analytic methods
Grant-in-Aid for Scientific Research (C)
KYOTO UNIVERSITY
Tomomichi HAGIWARA
From 01 Apr. 2000, To 31 Mar. 2003, Project Closed
サンプル値制御系;連続時間線形周期時変系;周波数応答作用素;正実性;ナイキスト安定判別法;スペクトル解析;調和リアプノフ方程式;2分法;ロバスト安定解析;物理パラメータの不確かさ;一般化固有値問題;制御装置の離散化;サンプル値系;周期時変系;周波数応答;安定解析;H_2ノルム;H_∞ノルム;周波数領域;周期系;線形行列不等式, sampled-data systems;linear periodic systems;frequency response operator;positive-realness;Nyquist stability criterion;spectral analysis;harmonic Lyapunov equation;bisection method
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12650444/

凸最適化アプローチによる非線形制御系の解析・設計とその新世代空圧制御機器への応用
Grant-in-Aid for Encouragement of Young Scientists (A)
Kyoto University
萩原朋道
From 01 Apr. 1997, To 31 Mar. 1999, Project Closed
非線形性;凸最適化;安定条件;周波数領域;線形行列不等式;空気圧シリンダ
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09750494/

空圧サーボの超高精度コンピュータ制御
Grant-in-Aid for Encouragement of Young Scientists (A)
Kyoto University
萩原朋道
From 01 Apr. 1996, To 31 Mar. 1997, Project Closed
空圧サーボの位置決め制御;ディジタル制御;2自由度制御系;最適制御;非線形摩擦;ディザ
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08750521/

Post-Modern Frequency Response Theory of Digital Control Sys-tems
Grant-in-Aid for Scientific Research (C)
Kyoto University
Mitsuhiko ARAKI
From 01 Apr. 1996, To 31 Mar. 1999, Project Closed
制御系の解析と設計;サンプル点間応答;周波数応答;周波数重み;感度関数・相補感度関数;ボード線図;ロバスト安定解析;非線形解析;ロパスト安定解析, Design and analysis of control systems;Intersample behavior;Frequency response;Frequency-dependent weight;Sensitivity functions;Bode diagram;Robust stability analysis;Nonlinear analysis
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08650489/

サンプル値系の性能評価の統合的研究：誘導・準ハンケルノルム解析と非負性・双対性
Grant-in-Aid for Scientific Research (C)
Basic Section 21040:Control and system engineering-related
Kyoto University
萩原朋道
From 01 Apr. 2022, To 31 Mar. 2025, Granted
サンプル値系;準ハンケル作用素;外部非負性;双対性;サンプル値制御系;誘導ノルム;ハンケルノルム;非負性
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22K04153/

周期時変系・サンプル値系のノルム解析の精緻化とある種のむだ時間の影響評価への展開
Grant-in-Aid for Scientific Research (C)
Basic Section 21040:Control and system engineering-related
Kyoto University
萩原朋道
From 01 Apr. 2025, To 31 Mar. 2028, Granted
準ハンケル作用素;周期時変系;サンプル値系;critical instant;不均一むだ時間
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-25K07793/

Last Updated :2025/07/01

Education

Teaching subject(s)

From 01 Apr. 2025, To 31 Mar. 2026
Digital Control
6027, Fall, Faculty of Engineering, 2

From 01 Apr. 2025, To 31 Mar. 2026
Design of Control Systems
C631, Fall, Graduate School of Engineering, 2

From 01 Apr. 2025, To 31 Mar. 2026
State Space Theory of Dynamical Systems
C628, Spring, Graduate School of Engineering, 2

From 01 Apr. 2025, To 31 Mar. 2026
Function Theory of a Complex Variable
N143, Spring, Institute for Liberal Arts and Sciences, 2

From 01 Apr. 2024, To 31 Mar. 2025
State Space Theory of Dynamical Systems
C628, Spring, Graduate School of Engineering, 2

From 01 Apr. 2024, To 31 Mar. 2025
Design of Control Systems
C631, Fall, Graduate School of Engineering, 2

From 01 Apr. 2024, To 31 Mar. 2025
Digital Control
6027, Fall, Faculty of Engineering, 2

From 01 Apr. 2024, To 31 Mar. 2025
Control Engineering
6026, Spring, Faculty of Engineering, 2

From 01 Apr. 2024, To 31 Mar. 2025
Function Theory of a Complex Variable
N143, Spring, Institute for Liberal Arts and Sciences, 2

From 01 Apr. 2023, To 31 Mar. 2024
Digital Control
6027, Fall, Faculty of Engineering, 2

From 01 Apr. 2023, To 31 Mar. 2024
Control Engineering
6026, Spring, Faculty of Engineering, 2

From 01 Apr. 2023, To 31 Mar. 2024
Design of Control Systems
C631, Fall, Graduate School of Engineering, 2

From 01 Apr. 2023, To 31 Mar. 2024
State Space Theory of Dynamical Systems
C628, Spring, Graduate School of Engineering, 2

From 01 Apr. 2023, To 31 Mar. 2024
Function Theory of a Complex Variable
N143, Spring, Institute for Liberal Arts and Sciences, 2

From 01 Apr. 2022, To 31 Mar. 2023
State Space Theory of Dynamical Systems
C628, Spring, Graduate School of Engineering, 2

From 01 Apr. 2022, To 31 Mar. 2023
Function Theory of a Complex Variable
N143, Spring, Institute for Liberal Arts and Sciences, 2

From 01 Apr. 2022, To 31 Mar. 2023
Design of Control Systems
C631, Fall, Graduate School of Engineering, 2

From 01 Apr. 2022, To 31 Mar. 2023
Control Engineering
6026, Spring, Faculty of Engineering, 2

From 01 Apr. 2022, To 31 Mar. 2023
Digital Control
6027, Fall, Faculty of Engineering, 2

From Apr. 2011, To Mar. 2012
状態方程式論
Spring, 工学研究科

From Apr. 2011, To Mar. 2012
制御系設計理論
Fall, 工学研究科

From Apr. 2011, To Mar. 2012
自動制御工学
Spring, 工学部

From Apr. 2011, To Mar. 2012
ディジタル制御
Fall, 工学部

From Apr. 2011, To Mar. 2012
Function Theory of a Complex Variable
Spring, 全学共通科目

From Apr. 2012, To Mar. 2013
Function Theory of a Complex Variable
Spring, 全学共通科目

From Apr. 2012, To Mar. 2013
Digital Control
Fall, 工学部

From Apr. 2012, To Mar. 2013
Design of Control Systems
Fall, 工学研究科

From Apr. 2012, To Mar. 2013
State Space Theory of Dynamical Systems
Spring, 工学研究科

From Apr. 2012, To Mar. 2013
Control Engineering
Spring, 工学部

From Apr. 2013, To Mar. 2014
Control Engineering
Spring, 工学部

From Apr. 2013, To Mar. 2014
Digital Control
Fall, 工学部

From Apr. 2013, To Mar. 2014
Research Internship(M)
Year-long, 工学研究科

From Apr. 2013, To Mar. 2014
State Space Theory of Dynamical Systems
Spring, 工学研究科

From Apr. 2013, To Mar. 2014
Design of Control Systems
Fall, 工学研究科

From Apr. 2013, To Mar. 2014
Advanced Experiments and Exercises in Electrical Engineering I
Year-long, 工学研究科

From Apr. 2013, To Mar. 2014
Advanced Experiments and Exercises in Electrical Engineering II
Year-long, 工学研究科

From Apr. 2013, To Mar. 2014
Master's Thesis
Year-long, 工学研究科

From Apr. 2013, To Mar. 2014
Advanced Seminar in Electrical EngineeringI
Spring, 工学研究科

From Apr. 2013, To Mar. 2014
Advanced Seminar in Electrical EngineeringII
Spring, 工学研究科

From Apr. 2013, To Mar. 2014
Advanced Electrical Engineering Seminar
Year-long, 工学研究科

From Apr. 2013, To Mar. 2014
Research Internship (D)
Year-long, 工学研究科

From Apr. 2013, To Mar. 2014
Advanced Exercises on Electrical Engineering I
Year-long, 工学研究科

From Apr. 2013, To Mar. 2014
Advanced Exercises on Electrical Engineering II
Year-long, 工学研究科

From Apr. 2013, To Mar. 2014
Function Theory of a Complex Variable
Spring, 全学共通科目

From Apr. 2014, To Mar. 2015
Control Engineering
Spring, 工学部

From Apr. 2014, To Mar. 2015
Digital Control
Fall, 工学部

From Apr. 2014, To Mar. 2015
State Space Theory of Dynamical Systems
Spring, 工学研究科

From Apr. 2014, To Mar. 2015
Design of Control Systems
Fall, 工学研究科

From Apr. 2014, To Mar. 2015
Function Theory of a Complex Variable
Spring, 全学共通科目

From Apr. 2015, To Mar. 2016
Digital Control
Fall, 工学部

From Apr. 2015, To Mar. 2016
Design of Control Systems
Fall, 工学研究科

From Apr. 2015, To Mar. 2016
State Space Theory of Dynamical Systems
Spring, 工学研究科

From Apr. 2015, To Mar. 2016
Control Engineering
Spring, 工学部

From Apr. 2015, To Mar. 2016
Function Theory of a Complex Variable
Spring, 全学共通科目

From Apr. 2016, To Mar. 2017
Digital Control
Fall, 工学部

From Apr. 2016, To Mar. 2017
Design of Control Systems
Fall, 工学研究科

From Apr. 2016, To Mar. 2017
State Space Theory of Dynamical Systems
Spring, 工学研究科

From Apr. 2016, To Mar. 2017
Control Engineering
Spring, 工学部

From Apr. 2016, To Mar. 2017
Function Theory of a Complex Variable
Spring, 全学共通科目

From Apr. 2017, To Mar. 2018
Digital Control
Fall, 工学部

From Apr. 2017, To Mar. 2018
Design of Control Systems
Fall, 工学研究科

From Apr. 2017, To Mar. 2018
State Space Theory of Dynamical Systems
Spring, 工学研究科

From Apr. 2017, To Mar. 2018
Control Engineering
Spring, 工学部

From Apr. 2017, To Mar. 2018
Function Theory of a Complex Variable
Spring, 全学共通科目

From Apr. 2018, To Mar. 2019
Digital Control
Fall, 工学部

From Apr. 2018, To Mar. 2019
Design of Control Systems
Fall, 工学研究科

From Apr. 2018, To Mar. 2019
State Space Theory of Dynamical Systems
Spring, 工学研究科

From Apr. 2018, To Mar. 2019
Control Engineering
Spring, 工学部

From Apr. 2018, To Mar. 2019
Function Theory of a Complex Variable
Spring, 全学共通科目

From Apr. 2019, To Mar. 2020
Digital Control
Fall, 工学部

From Apr. 2019, To Mar. 2020
Design of Control Systems
Fall, 工学研究科

From Apr. 2019, To Mar. 2020
State Space Theory of Dynamical Systems
Spring, 工学研究科

From Apr. 2019, To Mar. 2020
Research Internship (D)
Year-long, 工学研究科

From Apr. 2019, To Mar. 2020
Research Internship(M)
Year-long, 工学研究科

From Apr. 2019, To Mar. 2020
Master's Thesis
Year-long, 工学研究科

From Apr. 2019, To Mar. 2020
Control Engineering
Spring, 工学部

From Apr. 2019, To Mar. 2020
Function Theory of a Complex Variable
Spring, 全学共通科目

From Apr. 2019, To Mar. 2020
Advanced Electrical Engineering Seminar
Year-long, 工学研究科

From Apr. 2019, To Mar. 2020
Advanced Experiments and Exercises in Electrical Engineering II
Year-long, 工学研究科

From Apr. 2019, To Mar. 2020
Advanced Experiments and Exercises in Electrical Engineering I
Year-long, 工学研究科

From Apr. 2019, To Mar. 2020
Advanced Exercises on Electrical Engineering I
Year-long, 工学研究科

From Apr. 2019, To Mar. 2020
Advanced Exercises on Electrical Engineering II
Year-long, 工学研究科

From Apr. 2019, To Mar. 2020
Advanced Seminar in Electrical EngineeringII
Spring, 工学研究科

From Apr. 2019, To Mar. 2020
Advanced Seminar in Electrical EngineeringI
Spring, 工学研究科

From Apr. 2020, To Mar. 2021
Digital Control
Fall, 工学部

From Apr. 2020, To Mar. 2021
Design of Control Systems
Fall, 工学研究科

From Apr. 2020, To Mar. 2021
State Space Theory of Dynamical Systems
Spring, 工学研究科

From Apr. 2020, To Mar. 2021
Control Engineering
Spring, 工学部

From Apr. 2020, To Mar. 2021
Function Theory of a Complex Variable
Spring, 全学共通科目

From Apr. 2021, To Mar. 2022
Digital Control
Fall, 工学部

From Apr. 2021, To Mar. 2022
Design of Control Systems
Fall, 工学研究科

From Apr. 2021, To Mar. 2022
State Space Theory of Dynamical Systems
Spring, 工学研究科

From Apr. 2021, To Mar. 2022
Control Engineering
Spring, 工学部

From Apr. 2021, To Mar. 2022
Function Theory of a Complex Variable
Spring, 全学共通科目

Participation in PhD Defense

Study on Error Estimation of the Cauer Ladder Network Method
NAGAMINE HIDEAKI, Graduate School of Engineering, Sub-chief Examiner
25 Mar. 2024

Last Updated :2025/07/01

Administration

School management (title, position)

From 01 Apr. 2024, To 31 Mar. 2025
国際高等教育院企画評価専門委員会数学部会

From 01 Apr. 2023, To 31 Mar. 2024
国際高等教育院企画評価専門委員会数学部会委員

From 01 Apr. 2022, To 31 Mar. 2023
国際高等教育院企画評価専門委員会数学部会委員

From 01 Apr. 2008, To 31 Mar. 2009
FD研究検討委員会委員

From 01 Apr. 2018, To 31 Mar. 2019
国際高等教育院企画評価専門委員会数学部会委員

From 01 Apr. 2019, To 31 Mar. 2020
国際高等教育院企画評価専門委員会数学部会委員

From 01 Apr. 2020, To 31 Mar. 2021
国際高等教育院企画評価専門委員会数学部会委員

From 01 Apr. 2021, To 31 Mar. 2022
国際高等教育院企画評価専門委員会数学部会委員

Faculty management (title, position)

From 01 Apr. 2013, To 31 Mar. 2014
電気工学専攻長

From 01 Apr. 2014, To 31 Mar. 2016
工学研究科国際交流委員会　委員

From 01 Apr. 2013
工学研究科附属環境安全衛生センター運営委員会　委員

From 01 Apr. 2016, To 31 Mar. 2020
工学部新工学教育実施専門委員会　委員

From 01 Apr. 2019, To 31 Mar. 2020
電気工学専攻長

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Hagiwara, Tomomichi

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External funds: Kakenhi

Education

Teaching subject(s)

Participation in PhD Defense

Administration

School management (title, position)

Faculty management (title, position)

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