Toward nonlinear control theory that can really be used in practice,
The 52nd Anual Conference of the Institute of Systems, Control and Information Engineers, Kyoto, May 16th, 2008 (Semi-plenary lecture, in Japanese).
N. Sakamoto:
When does stabilizability imply the existence of infinite horizon optimal control in nonlinear systems?, Automatica, accepted for publication
N. Sakamoto: Nonlinear Optimal Control --- Theory, Application and Implementation, Journal of The Society of Instrument and Control Engineers, Vol. 63, pp. 139-145, 2022
M. Gnuffi, D. Pighin and N. Sakamoto:
Rotor imbalance suppression by optimal control, Optimal Control, Applications and Methods, Vol. 43, pp. 213-242, 2022
N. Sakamoto and E. Zuazua:
The turnpike property in nonlinear optimal control --- A geometric approach, Automatica, Vol. 134, 109939, 2021
N. Sakamoto and M. Nagahara:
The turnpike property in the maximum hands-off control, 59th IEEE Conference on Decision and Control, pp. 2350-2355, 2020
T. Nakamura, Y. Oishi and N. Sakamoto:
Nonlinear Optimal Tracking Control for a Periodic Reference Signal -- An Approach with the Stable-Manifold Method and a Shooting Method, Trans. SICE, Vol. 56, No. 4, pp. 243-248, 2020
N. Sakamoto, D. Pighin and E. Zuazua:
The turnpike property in nonlinear optimal control --- A geometric approach, 58th IEEE Conference on Decision and Control, pp. 2422-2427, 2019
T. Horibe and N. Sakamoto:
Nonlinear optimal control for swing up and stabilization of the Acrobot via stable manifold approach: Theory and experiment,
IEEE Transactions on Control System Technology, Vol. 27, No. 6, pp. 2374-2387, 2019
(see experiment)
G. Nishida and N. Sakamoto:
Data-driven nonlinear optimal control for distributed parameter systems with output delay, IFAC-PapersOnLine, Volume 51, Issue 3, pp. 101-106, 2018 (6th IFAC Workshop on Lagrangian and Hamiltonian Methods for Nonlinear Control)
A. Nakashima, S. Maruo, R. Nagai and N. Sakamoto:
2-Dimensional dynamical modeling and control of spherical robot driven by inner car, IEEE International Conference on Robotics and Biomimetics, pp. 1846-1851, 2018
L. N. Kamba, T. T. Manga and N. Sakamoto:
Stability and Optimal Control of Tuberculosis Spread with an Imperfect Vaccine in the Case of Co-Infection with HIV, Open Journal of Modelling and Simulation, Vol. 7, No. 2, pp. 97-114, 2019
A. T. Tran, S. Suzuki, N.Sakamoto: Nonlinear gain-scheduled flight controller design via stable manifold method, Aerospace Science and Technology, Vol. 80, pp. 301-308, 2018
A. T. Tran, S. Suzuki, N.Sakamoto: Nonlinear optimal control design considering a class of system constraints with validation on a magnetic levitation system, IEEE Control System Letters, Vol. 1, No. 2, pp. 418-423, 2017
T. Horibe, N. Sakamoto, Optimal swing up and stabilization control for inverted pendulum via stable manifold method, IEEE Transaction on Control System Technology, Vol. 26, No. 2, pp. 708-715, 2017
G. Nishida, N. Sakamoto: Parallelization of search scheme in stable manifold method, SICE Annual Conference, 2017
G. Nishida, N. Sakamoto: Stable manifold method for infinite horizon optimal control problem with discounted cost, 20th IFAC World Congress, 2017
Y. Oishi, N. Sakamoto: Numerical computational improvement of the stable-manifold method for nonlinear optimal control, 20th IFAC World Congress, 2017
A.T.Tran, N. Sakamoto, Y. Kikuchi, K. Mori: Pilot-Induced-Oscillation suppression controller design via nonlinear optimal output regulation method, Aerospace Science and Technology, Vol. 68, pp. 278-286, 2017
A. T. Tran, N. Sakamoto, M. Sato and K. Muraoka: Control augumentation system design for Quad-Tilt-Wing unmanned aerial vehicle via robust output regulation method, to appear in IEEE Transaction on Aerospace and Electric Systems, Vol. 53, No. 1, pp. 357 - 369, 2017
A. T. Tran and N. Sakamoto: A general framework for constrained optimal control based on stable manifold method, 55th IEEE Conference on Decision and Control, 2016.
A. T. Tran and N. Sakamoto: A computational approach for stable manifold method based on three-point boundary value problem, SICE Annual Conference 2016, 2016.
T. Horibe and N. Sakamoto: Swing up and stabilization of the Acrobot via nonlinear optimal control based on stable manifold method, 10th IFAC Symposium on Nonlinear Control Systems, 2016.
G. Nishida and N. Sakamoto: Optimal Port Allocation for Nonlinear Distributed Parameter Systems, 2nd IFAC Workshop on Control of Systems Governed by Partial Differential Equations, 2016.
K. Nagata, N. Sakamoto and Y. Habaguchi: Center manifold method for the orbit design of the restricted three body problem, 54th IEEE Conference on Decision and Control, 2015.
Y. Abe and G. Nishida, N. Sakamoto and Y. Yamamoto: Robust nonlinear H-infty control design via stable manifold method, Mathematical Problems in Engineering, Vol. 2015, Article ID 198380, 2015.
G. Nishida, Y. Abe, N. Sakamoto and Y. Yamamoto: Robustness analysis of optimal regulator for vehicle model with nonlinear friction, International Journal of Emerging Technology and Advanced Engineering, Vol. 5, Issue 6, pp. 25-30, 2015.
Y. Habaguchi, N. Sakamoto and K. Nagata: Nonlinear optimal stabilization of unstable periodic orbits, 4th IFAC Conference on Analysis and Control of Chaotic Systems, 2015.
K. Hamaguchi, G. Nishida, N. Sakamoto and Y.~Yamamoto:
Nonlinear optimal control in catalytic process via stable manifold method,
5th IFAC Workshop on Lagrangian and Hamiltonian Methods for Non Linear Control, 2015.
G. Nishida and N. Sakamoto: Robustness of Nonlinear Optimal Regulator for Reduced Distributed Parameter System, 2015 SIAM Conference on Control and Its Applications, 2015.
Y. Abe, G. Nishida, N. Sakamoto and Y. Yamamoto:
Symplectic numerical approach for nonlinear optimal control of systems with inequality constraints, International Journal of Modern Nonlinear Theory and Application, Vol. 4, No. 4, pp. 234-248, 2015.
M. Suzuki and N. Sakamoto: A study on global stabilization of periodic orbits in discrete-time chaotic systems by using symbolic dynamics, Kybernetika, Vol. 51, Issue 1, pp. 4-19, 2015.
K. Hamaguchi, G. Nishida, N. Sakamoto and Y. Yamamoto: Optimal feedback control of nonlinear distributed parameter systems based on model reduction,
Trans. SICE, Vol. 51, No. 3, pp. 181-188. 2015.
K. Yamaguchi, N. Sakamoto:
Swing-up and stabilization control of a flexible rotational inverted pendulum by nonlinear frequency optimal control, Trans. SICE, Vol. 51, No. 3. pp. 148-154, 2015; See experiment video on Youtube
Y. Umemura and N.Sakamoto:
Optimal servo design for lock-up slip control for torque converter---nonlinear output regulation approach, IEEE Transactions on Control Systems Technology, Vol. 23, No. 4, pp. 1587 - 1593, 2015.
K. Hamaguchi, G. Nishida, N. Sakamoto and Y. Yamamoto:
Rapid numerical solution to Hamilton-Jacobi equations in stable manifold method, Trans. ISCIE, Vol. 28, No. 1, pp. 32-39, 2015.
T. Kobayakawa, H. Kawato, K. Mochizuki, N. Sakamoto and Y. Habaguchi:
Abort recovery strategy for future vertical landing systems, 65th International Astronautical Congress, 2014.
K. Ishikawa and N. Sakamoto:
Optimal control for control moment gyros -- Center-stable manifold approach, Trans. SICE, Vol. 50, No. 10, pp. 731-738, 2014.
K. Hamaguchi, G. Nishida and N. Sakamoto:
Suboptimal feedback control of nonlinear distributed parameter systems by stable manifold method, 19th IFAC World Congress, 2014.
N. Sakamoto and B. Rehak:
Nonlinear Luenberger observer design via invariant manifold computation, 19th IFAC World Congress, 2014.
A nonlinear observer via system variables dependent Sylvester equation approach with applications, 21st Mathematical Theory of Network and Systems (MTNS 2014), 2014.
Y. Umemura and N. Sakamoto:
Slip control of a lock-up clutch via optimal output regulation for LPV systems, Trans. SICE, Vol. 50, No. 3, pp. 274-280, 2014.
K. Ueno, N. Sakamoto, M. Suzuki and T. Oguchi:
New nonlinear observer by state-dependent sylvester equation approach, Trans. SICE, Vol. 50, No. 3, pp. 219-226, 2014.
H. Suzuki and N. Sakamoto:
Output regulation control experiment for inverted pendulum -- Nonlinear control via center manifold approximation theory, Transactions of the Japan Society of Mechanical Engineers, Series C, Vol. 79, No. 803, pp. 2373-2382, 2013.
G. Nishida, K. Yamaguchi and N. Sakamoto:
Passivity-based boundary controls of flexible beams with large deformations, Trans. ISCIE, Vol. 26, No. 7, pp. 288-296, 2013.
Y. Umemura and N. Sakamoto:
Nonlinear optimal servo control design for PMSM with inverter voltage norm constraints, Trans. ISCIE, Vol. 26, No. 7, pp. 252-260, 2013.
Y. Umemura and N. Sakamoto:
Nonlinear optimal control design for practical use - Based on invariant manifold computation, Journal of ISCIE, Vol. 57, No. 7, 264-269, 2013.
M. Suzuki and N. Sakamoto:
Analysis and control for systems of first oder partial differential equations, Journal of ISCIE, Vol. 57, No. 6, 248-253, 2013.
H. Umeda, N. Sakamoto and Y. Umemura:
Nonlinear optimal controller designs satisfying state and input norm constraints,
Trans. SICE, Vol. 49, No. 3, 345-352, 2013.
S. Yamagishi, N. Sakamoto and M. Sato:
Flight Control Design for Prevention of PIO using Nonlinear Optimal Control,
Journal of the Japan Society for Aeronautical and Space Sciences, Vol. 61, No. 1, pp. 1-8, 2013.
N. Sakamoto:
Case studies on the application of the stable manifold approach for nonlinear optimal control design,
Automatica, Vol. 49, No. 2, pp. 568-576, 2013.
K. Yamaguchi, G. Nishida and N. Sakamoto:
Energy estimation in numerical scheme for nonlinear partial differential equations,
4th IFAC Workshop on Lagrangian and Hamiltonian Methods for Non Linear Control, 2012.
R. Fujimoto and N. Sakamoto:
Swing-up and stabilization of inverted pendulum by nonlinear optimal control,
Trans. SICE, Vol. 48, No. 7, pp. 423-430, 2012.
H. Umeda, Y. Maeyama, N. Sakamoto and Y. Umemura:
Optimal controller designs satisfying state constraints,
The SICE Annual Conference,
2011.
S. Yamagishi, N. Hasegawa, N. Sakamoto and M. Sato:
Nonlinear control of an aircraft in the presence of microburst windshear,
The SICE Annual Conference,
2011.
M. Suzuki and N. Sakamoto:
Controlling Ideal Turbulence in Time-delayed Chua's Circuit:
Stabilization and Synchronization,
International Journal of Bifurcation and Chaos,
Vol. 20, Issue 5, pp. 1351-1363, 2010.
H. Suzuki, N. Sakamoto and S. Celikovsky:
Analytical Approximation Method for the Center Manifold
in the Nonlinear Output Regulation Problem,
Trans. SICE, Vol. 45, No. 9, pp. 451-458, 2009.
S. Zavadsky, A. Ovsyannikov and N. Sakamoto:
Parametric Optimization for Tokamak Plasma Control System
4th International Scientific Conference on Physics and Control, 2009.
M. Suzuki and N. Sakamoto:
A study on controlling ideal turbulence: Stabilization and synchronization
of time-delayed Chua's circuits,
Trans. SICE, Vol. 45, No. 8, pp. 398-405, 2009.
M. Suzuki and N. Sakamoto:
Synchronizing ideal turbulence and an application to communications,
IEICE Trans. on Fundamentals of Electronics, Communications and Computer Science,
Vol. J92-A, No. 11, pp. 901-908, 2009.
M. Suzuki and N. Sakamoto:
Controlling ideal turbulence and an application to communications,
48th IEEE Conference on Decision and Control,
2009.
R. Fujimoto, H. Suzuki and N. Sakamoto:
Design of a nonlinear optimal servo system for a magnetic levitation system,
Trans. SICE, Vol. 45, No. 7, pp. 388-390, 2009.
M. Suzuki, N. Sakamoto and K. Naito:
Controlling ideal turbulence: stabilization and synchronization,
2nd IFAC Conference on Analysis and Control of Chaotic Systems, 2009.
Systems and Control, Ohumsha, 2008. (Coauthor)
N. Sakamoto: A method for solving the Hamilton-Jacobi equation via approximation
of stable manifolds,
Journal of the Japan Society for Simulation Technology, Vol. 27, No. 4, pp. 221-225, 2008.
N. Sakamoto and A. J. van der Schaft: Analytical approximation methods for the stabilizing solution of
the Hamilton-Jacobi equation,
IEEE Trans. Automatic Control, Vol. 53, No. 10, pp. 2335-2350, 2008.
H. Suzuki and N. Sakamoto and S. Celikovsky:
Analytical approximation method for the center manifold in the nonlinear output regulation problem,
47th IEEE Conference on Decision and Control, 2008.
M. Suzuki and N. Sakamoto: Global stabilization of periodic orbits in chaotic systems by using
symbolic dynamics,
Proc. the 17th IFAC World Congress , 2008.
M. Suzuki and N. Sakamoto: A butterfly-shaped localization set for the Lorenz attractor,
Physics Letters A, Vol. 372, Issues 15, pp. 2614-2617, 2008.
M. Suzuki and N. Sakamoto: A study on global stabilization of a class of discrete-time
systems by using symbolic dynamics,
3rd International IEEE Scientific Conference on Physics and Control, 2007.
N. Sakamoto and A. J. van der Schaft: An approximation method for the stabilizing solution of the
Hamilton-Jacobi equation for integrable systems---A Hamiltonian perturbation approach,
Trans. SICE, Vol. 43, No. 7, pp. 572-580, 2007.
K. Yamada, I. Jikuya, N. Sakamoto and F. Goto: Pilot-induced oscillation analysis with rate limiter,
Journal of the Japan Society of Mechanical Engineers, Series C, Vol. 73, No. 728, pp. 1059-1066, 2007.
N. Sakamoto and A. J. van der Schaft: An analytical approximation method for
the stabilizing solution of the Hamilton-Jacobi equation based on stable
manifold theory, 26th American Control Conference, 2007.
X.-H. Liang, K. Yamada, N. Sakamoto and I. Jikuya:
Model predictive controller design to suppress rate-limiter-based
pilot-induced oscillations, Trans. of the Japan Society for Aeronautical and Space Sciences, Vol. 49, No. 166, pp. 239-245, 2007.
N. Sakamoto and A. J. van der Schaft:
An approximation method for the stabilizing solution of the
Hamilton-Jacobi equation for integrable systems using Hamiltonian
perturbation theory, 45th IEEE Conference on Decision and Control,
2006.
N. Sakamoto: Floquet-based chaos control for continuous-time systems
with stability analysis, Physics Letters A, Vol. 356, Issues 4-5, pp. 316-323, 2006.
N. Sakamoto: A generalization of the OGY control to continuous-time
systems using Floquet theory, 16th IFAC World Congress, 2005.
N. Sakamoto: Tracking control of the n-dimensional rigid body with output feedback, Trans. SICE, Vol. 40, No. 9, pp. 934-937, 2004.
N. Sakamoto and H. Suzuki: Attitude Control of n-dimensional rigid body with angular velocity observer, IFAC Symposium on Nonlinear Control Systems, 2004.
H. Suzuki and N. Sakamoto: An observer design and separation principle for the motion of the n-dimensional rigid body, Trans. SICE, Vol. 40, No. 5, pp. 502-508, 2004.
N. Sakamoto and H. Suzuki:
Representation and control of systems on the rotation group,
Journal of SICE, Vol. 42, No. 10, pp. 847-852, 2003.
H. Suzuki and N. Sakamoto: An observer design and separation principle for the motion of the n-dimensional rigid body, Proc. of European Control Conference, 2003.
N. Sakamoto: Analysis of the Hamilton-Jacobi equation in nonlinear control theory by symplectic geometry, SIAM Journal on Contr. Opt., Vol. 40, No. 6, 1924-1937, 2002.