Tomomichi Hagiwara
Orcid: 0000-0002-9212-9551
According to our database1,
Tomomichi Hagiwara
authored at least 129 papers
between 1995 and 2024.
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Bibliography
2024
Stochastic Gain-Scheduled Control of Discrete-Time Systems Characterized by Random Polytopes.
IEEE Control. Syst. Lett., 2024
Internal/External Positivity of Sampled-Data Systems: Definitions and the Necessary and Sufficient Conditions.
IEEE Access, 2024
On Existence of Uniformly Marginally Stable Zeros of Linear Sampled-Data Systems and Its Application to Stable Inversion-Based Control.
IEEE Access, 2024
2023
Robust Stability Analysis of Sampled-Data Systems With Uncertainties Characterized by the ${\mathcal {L}}_\infty$-Induced Norm: Gridding Treatment With Convergence Rate Analysis.
IEEE Trans. Autom. Control., December, 2023
Quasi $L_{2}/L_{2}$ Hankel Norms and $L_{2}/L_{2}$ Hankel Norm/Operator of Sampled-Data Systems.
IEEE Trans. Autom. Control., July, 2023
Robust Control of Discrete-Time Systems With Coefficient Matrices Given by Polytopic Martingales.
IEEE Control. Syst. Lett., 2023
H₂ Performance Analysis and Synthesis for Discrete-Time Linear Systems With Dynamics Determined by an i.i.d. Process.
IEEE Control. Syst. Lett., 2023
Appl. Math. Comput., 2023
State Observer Under Multi-Rate Sensing Environment and Its Design Using l<sub>2</sub>-Induced Norm.
IEEE Access, 2023
A New Quasi-Finite-Rank Approximation of Compression Operators with Application to the $\mathcal{L}_{1}$ Discretization for Sampled-Data Systems.
Proceedings of the 62nd IEEE Conference on Decision and Control, 2023
L∞/ L2 Hankel Norm Analysis and Characterization of Critical Instants for Continuous-Time Linear Periodically Time-Varying Systems.
Proceedings of the 62nd IEEE Conference on Decision and Control, 2023
2022
On Second-Moment Stability of Discrete-Time Linear Systems With General Stochastic Dynamics.
IEEE Trans. Autom. Control., 2022
H2 Performance Analysis and Synthesis for Discrete-Time Linear Systems with Dynamics Determined by an i.i.d. Process.
CoRR, 2022
Autom., 2022
2020
IEEE Control. Syst. Lett., 2020
Linearization of expectation-based inequality conditions in control for discrete-time linear systems represented with random polytopes.
Autom., 2020
Computing the L∞-Induced Norm of LTI Systems: Generalization of Piecewise Quadratic and Cubic Approximations.
IEEE Access, 2020
2019
Equivalent Stability Notions, Lyapunov Inequality, and Its Application in Discrete-Time Linear Systems With Stochastic Dynamics Determined by an i.i.d. Process.
IEEE Trans. Autom. Control., 2019
Causality of general input-output systems and extended small-gain theorem for their feedback connection.
Eur. J. Control, 2019
Basic Idea of Periodically Time-Varying Dynamic Quantizer in Networked Control Systems.
Proceedings of the 58th Annual Conference of the Society of Instrument and Control Engineers of Japan, 2019
Generalization of Piecewise Constant Approximation in the L∞/L2 Optimal Control of Sampled-Data Systems.
Proceedings of the 17th European Control Conference, 2019
Properties of the Quasi L2/L2 Hankel Norms and the L2/L2 Hankel Operator of Sampled-Data Systems.
Proceedings of the 17th European Control Conference, 2019
Generalized Framework for Gridding Approximation Approach to Yet Another H 2 Norm of Sampled-Data Systems.
Proceedings of the 58th IEEE Conference on Decision and Control, 2019
2018
Robust Stability Analysis and State Feedback Synthesis for Discrete-Time Systems Characterized by Random Polytopes.
IEEE Trans. Autom. Control., 2018
SIAM J. Control. Optim., 2018
Proceedings of the 16th European Control Conference, 2018
Proceedings of the 57th IEEE Conference on Decision and Control, 2018
A Study on the Optimal Controller Synthesis for Minimizing the L<sub>2</sub> Norm of the Response to the Worst-Timing Impulse Disturbance in LTI Sampled-Data Systems.
Proceedings of the 57th IEEE Conference on Decision and Control, 2018
2017
Upper/lower bounds of generalized H<sub>2</sub> norms in sampled-data systems with convergence rate analysis and discretization viewpoint.
Syst. Control. Lett., 2017
Robust stability analysis with cycling-based LPTV scaling. Part II: its properties under the use of FIR separators.
Int. J. Control, 2017
Robust stability analysis with cycling-based LPTV scaling: part I. Fundamental results on its relationship with lifting-based LPTV scaling.
Int. J. Control, 2017
Extensive theoretical/numerical comparative studies on H2 and generalised H2 norms in sampled-data systems.
Int. J. Control, 2017
Proceedings of the IEEE International Conference on Industrial Technology, 2017
A discretization approach to the analysis of yet another H2 norm of LTI sampled-data systems.
Proceedings of the 56th IEEE Annual Conference on Decision and Control, 2017
2016
L<sub>1</sub> Discretization for Sampled-Data Controller Synthesis via Piecewise Linear Approximation.
IEEE Trans. Autom. Control., 2016
Further results on the <i>L</i><sub>1</sub> analysis of sampled-data systems via kernel approximation approach.
Int. J. Control, 2016
Random polytope representation of discrete-time uncertain stochastic switched systems and robust stabilization.
Proceedings of the 15th European Control Conference, 2016
A study on discretization approach to the L∞/L2 optimal controller synthesis problem in sampled-data systems.
Proceedings of the 55th IEEE Conference on Decision and Control, 2016
Proceedings of the 55th IEEE Conference on Decision and Control, 2016
Dual LMI approach to H∞ performance limitations analysis of SISO systems with multiple unstable zeros and poles.
Proceedings of the 2016 American Control Conference, 2016
2015
Spectrum of Monodromy Operator for a Time-Delay System With Application to Stability Analysis.
IEEE Trans. Autom. Control., 2015
L<sub>∞</sub>-induced norm analysis of sampled-data systems via piecewise constant and linear approximations.
Autom., 2015
Proceedings of the 14th European Control Conference, 2015
Proceedings of the 14th European Control Conference, 2015
Gain-scheduled state feedback synthesis for systems characterized by random polytopes.
Proceedings of the 54th IEEE Conference on Decision and Control, 2015
Computation of the induced norm from L2 to L∞ in SISO sampled-data systems: Discretization approach with convergence rate analysis.
Proceedings of the 54th IEEE Conference on Decision and Control, 2015
Proceedings of the American Control Conference, 2015
Proceedings of the 2015 IEEE Conference on Control Applications, 2015
2014
Computing the L<sub>∞</sub>[0, h)-induced norm of a compression operator via fast-lifting.
Syst. Control. Lett., 2014
Conversion of linear time-invariant time-delay feedback systems into delay-differential equations with commensurate delays.
Int. J. Syst. Sci., 2014
State feedback synthesis for robust stabilization of discrete-time linear systems characterized by stochastic polytopes.
Proceedings of the 13th European Control Conference, 2014
Proceedings of the 53rd IEEE Conference on Decision and Control, 2014
Robust stability analysis of discrete-time linear systems characterized by stochastic polytopes.
Proceedings of the American Control Conference, 2014
2013
Unified treatment of robust stability conditions for discrete-time systems through an infinite matrix framework.
Autom., 2013
Demonstrating the Effectiveness of Noncausal LPTV Scaling through Control Experiments with Cart Inverted Pendulum.
Proceedings of the 5th IFAC International Workshop on Periodic Control Systems, 2013
Proceedings of the 12th European Control Conference, 2013
Proceedings of the 12th European Control Conference, 2013
L1 analysis of sampled-data systems via fast-lifting and piecewise linear approximation.
Proceedings of the 52nd IEEE Conference on Decision and Control, 2013
A note on representation of nonlinear time-varying delay-differential equations as time-delay feedback systems.
Proceedings of the 9th Asian Control Conference, 2013
Proceedings of the 9th Asian Control Conference, 2013
2012
Robust stability analysis based on noncausal LPTV FIR scaling: Explicit procedure and relationship with causal LTI FIR scaling.
Proceedings of the 51th IEEE Conference on Decision and Control, 2012
Proceedings of the American Control Conference, 2012
2011
Periodically time-varying controller synthesis for multiobjective H<sub>2</sub>/H<sub>∞</sub> control of discrete-time systems and analysis of achievable performance.
Syst. Control. Lett., 2011
Block checker/diagonal transformation matrices, their properties, and the interplay with fast-lifting.
Int. J. Syst. Sci., 2011
Properties of discrete-time noncausal linear periodically time-varying scaling and their relationship with shift-invariance in lifting-timing.
Int. J. Control, 2011
Concatenated solutions of delay-differential equations and their representation with time-delay feedback systems.
Int. J. Control, 2011
Fast-Lifting Approach to the Computation of the Spectrum of Retarded Time-Delay Systems.
Eur. J. Control, 2011
Infinite matrix representations of robust stability conditions for discrete-time systems.
Proceedings of the 50th IEEE Conference on Decision and Control and European Control Conference, 2011
A note on separator-type robust stability theorem and well-posedness of linear time-invariant systems.
Proceedings of the 2011 Australian Control Conference, 2011
2010
Quasi-finite-rank approximation of compression operators in sampled-data systems and time-delay systems.
Int. J. Control, 2010
Noncausal linear periodically time-varying scaling for robust stability analysis of discrete-time systems: Frequency-dependent scaling induced by static separators.
Autom., 2010
Synthesis of robust performance controllers based on discrete-time noncausal linear periodically time-varying scaling.
Proceedings of the 4th IFAC International Workshop on Periodic Control Systems, 2010
Asymptotic exactness of dual LMI approach for robust performance analysis of uncertain LTI systems.
Proceedings of the 49th IEEE Conference on Decision and Control, 2010
2009
Robust Performance Analysis of Uncertain LTI Systems: Dual LMI Approach and Verifications for Exactness.
IEEE Trans. Autom. Control., 2009
Modified fast-sample/fast-hold approximation and γ-independent <i>H</i><sub>∞</sub>-discretisation for general sampled-data systems by fast-lifting.
Int. J. Control, 2009
Separator-type robust stability theorem of sampled-data systems allowing noncausal LPTV scaling.
Autom., 2009
Constructing a sequence of relaxation problems for robustness analysis of uncertain LTI systems via dual LMIs.
Proceedings of the 48th IEEE Conference on Decision and Control, 2009
Further results on periodically time-varying memory state-feedback controller synthesis for discrete-time linear systems.
Proceedings of the 48th IEEE Conference on Decision and Control, 2009
2008
Generalized <i>S</i>-Procedure for Inequality Conditions on One-Vector-Lossless Sets and Linear System Analysis.
SIAM J. Control. Optim., 2008
Syst. Control. Lett., 2008
Eur. J. Control, 2008
Proceedings of the 47th IEEE Conference on Decision and Control, 2008
γ-Independent H∞-discretization of sampled-data systems by modified fast-sample/fast-hold approximation with fast lifting.
Proceedings of the American Control Conference, 2008
2007
An iterative method with guaranteed convergence for robust performance analysis of sampled-data systems against parameter uncertainties.
Int. J. Control, 2007
Proceedings of the 3rd IFAC Workshop on Periodic Control Systems, 2007
Robust stability analysis of sampled-data systems with noncausal periodically time-varying scaling: Optimization of scaling via approximate discretization and error bound analysis.
Proceedings of the 46th IEEE Conference on Decision and Control, 2007
Proceedings of the American Control Conference, 2007
2006
IEEE Trans. Autom. Control., 2006
Discussion on: "Transfer Functions and Statistical Analysis of FDLCP Systems Described by Higher-order Differential Equations".
Eur. J. Control, 2006
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.
Autom., 2006
Discretization of Continuous-Time Controllers Based on the Hilbert-Schmidt Norm of the Sampled-Data Frequency Response.
Proceedings of the 45th IEEE Conference on Decision and Control, 2006
Computing the Distance to Uncontrollability via LMIs: Lower and Upper Bounds Computation and Exactness Verification.
Proceedings of the 45th IEEE Conference on Decision and Control, 2006
Robust stability analysis of sampled-data systems via periodically time-varying scaling.
Proceedings of the American Control Conference, 2006
2005
2-Regularized Nyquist Criterion in Linear Continuous-Time Periodic Systems and Its Implementation.
SIAM J. Control. Optim., 2005
A Study on the Spectrum of the Sampled-Data Transfer Operator with Application to Robust Exponential Stability Problems.
SIAM J. Control. Optim., 2005
A dilated LMI approach to robust performance analysis of linear time-invariant uncertain systems.
Autom., 2005
Robust Performance Analysis of Linear Time-Invariant Uncertain Systems by Taking Higher-Order Time-Derivatives of the State.
Proceedings of the 44th IEEE IEEE Conference on Decision and Control and 8th European Control Conference Control, 2005
2004
Spectral characteristics and eigenvalues computation of the harmonic state operators in continuous-time periodic systems.
Syst. Control. Lett., 2004
Autom., 2004
New dilated LMI characterizations for continuous-time multiobjective controller synthesis.
Autom., 2004
Generalized S-procedure for inequality conditions on one-vector-lossless sets and linear system analysis.
Proceedings of the 43rd IEEE Conference on Decision and Control, 2004
Proceedings of the 43rd IEEE Conference on Decision and Control, 2004
Proceedings of the 2004 American Control Conference, 2004
2003
Harmonic Hamiltonian test for the H∞ performance in linear continuous-time periodic systems.
Proceedings of the 42nd IEEE Conference on Decision and Control, 2003
Proceedings of the 42nd IEEE Conference on Decision and Control, 2003
2002
IEEE Trans. Autom. Control., 2002
Corrections to "bisection algorithm for computing the frequency response gain of sampled-data systems - infinite-dimensional congruent transformation approach".
IEEE Trans. Autom. Control., 2002
Existence Conditions and Properties of the Frequency Response Operators of Continuous-Time Periodic Systems.
SIAM J. Control. Optim., 2002
A Study on the Optimal Cost for the H<sub>infty</sub> Problem of Discrete Linear Periodically Time-Varying Systems.
SIAM J. Control. Optim., 2002
Spectral Analysis and Singular Value Computations of the Noncompact Frequency Response and Compression Operators in Sampled-Data Systems.
SIAM J. Control. Optim., 2002
Syst. Control. Lett., 2002
H<sub>2</sub> and H<sub>∞</sub> norm computations of linear continuous-time periodic systems via the skew analysis of frequency response operators.
Autom., 2002
Robust controller synthesis with parameter-dependent Lyapunov variables: a dilated LMI approach.
Proceedings of the 41st IEEE Conference on Decision and Control, 2002
New dilated LMI characterizations for continuous-time control design and robust multiobjective control.
Proceedings of the American Control Conference, 2002
2001
Bisection algorithm for computing the frequency response gain of sampled-data systems - infinite-dimensional congruent transformation approach.
IEEE Trans. Autom. Control., 2001
Autom., 2001
Proceedings of the 40th IEEE Conference on Decision and Control, 2001
Multiobjective state-feedback control design with non-common LMI solutions: change of variables via affine functions.
Proceedings of the American Control Conference, 2001
2000
Further study on the bisection algorithm for the frequency response gain computation of sampled-data systems and related issues.
Proceedings of the American Control Conference, 2000
1999
Stability condition of a class of nonlinear feedback systems: reduction to a convex problem.
IEEE Trans. Autom. Control., 1999
1998
Robust stability of sampled-data systems under possibly unstable additive/multiplicative perturbations.
IEEE Trans. Autom. Control., 1998
1997
IEEE Trans. Autom. Control., 1997
1996
IEEE Trans. Autom. Control., 1996
1995
FR-operator approach to the H<sub>2</sub> analysis and synthesis of sampled-data systems.
IEEE Trans. Autom. Control., 1995
Preservation of reachability and observability under sampling with a first-order hold.
IEEE Trans. Autom. Control., 1995