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Hagiwara, Tomomichi

Graduate School of Engineering, Division of Electrical Engineering Professor

Hagiwara, Tomomichi
list
    Last Updated :2022/05/14

    Basic Information

    Faculty

    • 工学部

    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

    ID,URL

    Website(s) (URL(s))

    researchmap URL

    list
      Last Updated :2022/05/14

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

      Papers

      • 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 infinity/L2 Hankel operator and detection of all the critical instants in sampled-data systems
        Tomomichi Hagiwara; Akira Inai; Jung Hoon Kim
        IET CONTROL THEORY AND APPLICATIONS, Mar. 2021, Peer-reviewed
      • 離散時間非負システムの<i>l<sub>q</sub></i>/<i>l<sub>p</sub></i> 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-infinity-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<i>l</i><sub>2</sub>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
      • 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-infinity/L-2 HANKEL OPERATOR/NORM OF SAMPLED-DATA SYSTEMS
        Tomomichi Hagiwara; Akira Inai; Jung Hoon Kim
        SIAM JOURNAL ON CONTROL AND OPTIMIZATION, Jan. 2018, Peer-reviewed
      • 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
      • 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
      • 高次ホールド近似に基づくモノドロミ作用素のスペクトル計算について
        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
      • <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
      • 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
      • 離散化双線形モデルに基づくブーストコンバータ出力電圧の積分補償付非線形制御―I:―モデル化と同定
        後藤 良介; 蛯原 義雄; 萩原 朋道
        システム制御情報学会論文誌, Jan. 2015, Peer-reviewed
      • 離散化双線形モデルに基づくブーストコンバータ出力電圧の積分補償付非線形制御―II:―制御則の導出と実験による検証
        後藤 良介; 蛯原 義雄; 萩原 朋道
        システム制御情報学会論文誌, Jan. 2015, Peer-reviewed
      • 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
      • 台車型倒立振子制御実験による非因果的周期時変スケーリングに基づくロバスト性能設計の有効性検証
        片山 啓; 細江 陽平; 萩原 朋道
        システム制御情報学会論文誌, 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
      • 重み付きl1誘導ノルムを用いた離散時間結合非負システムの安定性解析
        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
      • 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
      • 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
      • 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
      • 離散時間非因果的周期時変スケーリングに基づくロバスト安定化制御器設計
        細江 陽平; 萩原 朋道
        計測自動制御学会論文集 = Transactions of the Society of Instrument and Control Engineers, Apr. 2010, Peer-reviewed
      • 単一の不確定パラメータを有する線形時不変系のロバストH性能解析—双対LMIに基づく緩和問題の漸近的に厳密な階層的構成と非漸近的な厳密性検証
        松田雄介; 田原雅人; 蛯原義雄; 萩原朋道
        システム制御情報学会論文誌, Mar. 2010, Peer-reviewed
      • 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
      • 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
      • 単純適応制御系設計におけるスケーリングの導入と拮抗型空圧人工筋駆動機構の位置決め制御への応用
        札場 勇大; 蛯原 義雄; 萩原 朋道; 岡崎 安直; 小松 真弓
        システム制御情報学会論文誌, Oct. 2009, Peer-reviewed
      • Separator-type robust stability theorem of sampled-data systems allowing noncausal LPTV scaling
        Tomomichi Hagiwara
        AUTOMATICA, Aug. 2009, Peer-reviewed
      • 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
      • 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
      • 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
      • プラント変数最適ロバストサーボ系に基づく2軸型空圧人工筋アームの軌道追従制御---圧力情報を利用したオブザーバによる追従性能の向上---
        金盛 且洋; 清田 将五郎; 蛯原 義雄; 萩原 朋道; 岡崎 安直; 小松 真弓
        計測自動制御学会論文集, Nov. 2008, Peer-reviewed
      • Linear periodically time-varying scaling and its properties
        Tomomichi Hagiwara; Ryouta Mori
        SYSTEMS & CONTROL LETTERS, Oct. 2008, Peer-reviewed
      • Modified Fast-sample/Fast-hold Approximation for Sampled-data System Analysis
        Tomomichi Hagiwara; Hiroaki Umeda
        EUROPEAN JOURNAL OF CONTROL, Jul. 2008, Peer-reviewed
      • 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
      • 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
      • 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
      • 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
      • 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
      • Exact stability analysis of 2-D systems using LMIs
        Yoshio Ebihara; Yoshimichi Ito; Tomomichi Hagiwara
        IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Sep. 2006
      • 多項式型パラメータ依存Lyapunov関数を用いた不確かな線形時不変系のロバストH∞性能解析
        平井 義人; 蛯原 義雄; 萩原 朋道
        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
      • 制御系の切換時における外乱応答の評価手法に関する検討---線形作用素表現に基づくL2ゲイン解析---
        蛯原 義雄; 萩原 朋道
        計測自動制御学会論文集, 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
      • 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
      • 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
      • 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
      • New dilated LMI characterizations for continuous-time multiobjective controller synthesis
        Y Ebihara; T Hagiwara
        AUTOMATICA, Nov. 2004
      • 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
      • Structured controller synthesis using LMI and alternating projection method
        Y Ebihara; K Tokuyama; T Hagiwara
        INTERNATIONAL JOURNAL OF CONTROL, Aug. 2004
      • On H(infinity) model reduction using LMIs
        Y Ebihara; T Hagiwara
        IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Jul. 2004
      • Positive-realness analysis of sampled-data systems and its applications
        T Hagiwara; T Mugiuda
        AUTOMATICA, Jun. 2004
      • 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
      • 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
      • 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
      • 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
      • Nyquist stability criterion and positive-realness of sampled-data systems
        T Hagiwara
        SYSTEMS & CONTROL LETTERS, Apr. 2002
      • 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
      • Stability analysis of continuous-time periodic systems via the harmonic analysis
        J Zhou; T Hagiwara; M Araki
        IEEE TRANSACTIONS ON AUTOMATIC CONTROL, Feb. 2002
      • 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
      • 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
      • 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
      • Upper and lower bounds of the frequency response gain of sampled-data systems
        T Hagiwara; M Suyama; M Araki
        AUTOMATICA, Sep. 2001
      • Computing frequency response gains of linear continuous-time periodic systems
        J Zhou; T Hagiwara
        IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS, Jul. 2001
      • 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
      • 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
      • LMI representation of the shifted Popov criterion
        Y Kakutani; T Hagiwara; M Araki
        AUTOMATICA, May 2000
      • 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
      • 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
      • 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
      • 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
      • 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.

      • 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
      • 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
      • 外部摂動によりマニピュレーションされた磁束量子の数値シミュレーション
        細江陽平; 萩原朋道; 引原隆士
        電子情報通信学会技術研究報告, 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
      • 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
      • 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
      • 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

      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
      • 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
      • 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
      • 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
        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
      • 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
        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
      • 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
        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
      • 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
        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
      • 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
        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
      • 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
        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
      • Post-Modern Frequency Response Theory of Digital Control Sys-tems
        Grant-in-Aid for Scientific Research (C)
        Kyoto University
        Mitsuhiko ARAKI
        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
      • 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, Adopted
      list
        Last Updated :2022/05/14

        Education

        Teaching subject(s)

        • 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
        list
          Last Updated :2022/05/14

          Administration

          School management (title, position)

          • 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
          list
            Last Updated :2022/05/14

            Academic, Social Contribution

            Social Contribution

            • -
              Other
              -, From 27 Jun. 2018, To 19 Dec. 2018
            • -
              Other
              -, From 01 Jul. 2015, To 24 Feb. 2016

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