List of Publications
Book Chapters
  1. Y. Yamamoto and M. Nagahara,
    Digital Control,
    Wiley Encyclopedia of Electrical and Electronics Engineering, J. G. Webster (Ed.).
    Wiley, doi:10.1002/047134608X.W1010.pub2, Feb. 2018.
  2. K. Yamamoto, Y. Yamamoto, and M. Nagahara,
    Hypertracking Beyond the Nyquist Frequency,
    Emerging Applications of Control and Systems Theory, A Festschrift in Honor of Mathukumalli Vidyasagar,
    R. Tempo, S. Yurkovich, and P. Misra (Eds.). pp. 369-379, Springer, doi:10.1007/978-3-319-67068-3_27, 2018.
  3. M. Nagahara, K. Hamaguchi, and Y. Yamamoto,
    Active noise control with sampled-data filtered-x adaptive algorithm,
    Mathematical System Theory - Festschrift in Honor of Uwe Helmke on the Occasion of his Sixtieth Birthday, pp. 275-290,
    CreateSpace, 2013. ISBN 978-1470044008
    [PDF]
  4. M. Nagahara,
    Min-max design of FIR digital filters by semidefinite programming
    Applications of Digital Signal Processing, pp. 193-210,
    InTech, Nov. 2011. ISBN 978-953-307-406-1
    [PDF] ,
  5. M. Nagahara,
    YY filter --- a paradigm of digital signal processing
    Perspectives in Mathematical System Theory, Control, and Signal Processing, pp. 331-340,
    Springer, 2010. ISBN 978-3-540-93917-7
    [PDF]
  6. M. Nagahara,
    Sound source separation,
    Audio signal compression,
    Synthesizer,
    Digital signal processing,
    Encyclopedia of Sound, (in Japanese)
    Maruzen, 2006. ISBN 978-4621076606
  7. Y. Yamamoto and M. Nagahara,
    Digital filter design via sampled-data control theory,
    Control and Modeling of Complex Systems: Cybernetics in the 21st Century , pp. 31-43,
    Birkhauser, Dec. 2002. ISBN 978-1-4612-0023-9
Journal Articles
  1. T. Ikeda, M. Nagahara, and K. Kashima,
    Maximum Hands-off Distributed Control for Consensus of Multi-Agent Systems with Sampled-data State Observation,
    IEEE Transactions on Control of Network Systems
    DOI: 10.1109/TCNS.2018.2880296 (accepted)
  2. T. Ikeda and M. Nagahara,
    Time-Optimal Hands-off Control for Linear Time-Invariant Systems,
    Automatica, Vol. 99, pp. 54-58, 2019
    DOI: 10.1016/j.automatica.2018.10.004
  3. N. Hayashi and M. Nagahara,
    Distributed Proximal Minimization Algorithm for Constrained Convex Optimization over Strongly Connected Networks,
    IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences Vol. E102-A, No. 02, Feb. 2019.
  4. Shuichi Ohno, Yuma Ishihara, and Masaaki Nagahara,
    Min-Max Design of Error Feedback Quantizers without Overloading,
    IEEE Transactions on Circuits and Systems I: Regular Papers, Vol. 65, No. 4, pp. 1395-1405, Nov. 2017 (open access)
    10.1109/TCSI.2017.2758801
  5. T. Ikeda and M. Nagahara,
    Discrete-valued Model Predictive Control using Sum-of-Absolute-Values Optimization,
    Asian Journal of Control, Vol. 20, No. 1, pp. 196-206, 2017 (open access)
    10.1002/asjc.1596
  6. Shuichi Ohno, Teruyuki Shiraki, M. Rizwan Tariq, and Masaaki Nagahara,
    Mean Squared Error Analysis of Quantizers with Error Feedback,
    IEEE Transactions on Signal Processing, Vol. 65, No. 22, pp. 5970-5981, Nov. 2017 (open access)
    10.1109/TSP.2017.2745450
  7. H. Sasahara, K. Hayashi, and M. Nagahara,
    Multiuser Detection based on MAP Estimation with Sum-of-Absolute-Values Relaxation,
    IEEE Transactions on Signal Processing, vol. 65, no. 21, pp. 5621-5634, Nov. 2017.
    10.1109/TSP.2017.2740164
  8. T. Ikeda, M. Nagahara, and S. Ono,
    Discrete-Valued Control of Linear Time-Invariant Systems by Sum-of-Absolute-Values Optimization,
    IEEE Transactions on Automatic Control, Vol. 62, No. 6, pp. 2750-2763, June 2017. (open access)
    10.1109/TAC.2016.2627683
  9. N. Hayashi, M. Nagahara, and Y. Yamamoto,
    Robust AC Voltage Regulation of Microgrids in Islanded Mode with Sinusoidal Internal Model,
    SICE Journal of Control, Measurement, and System Integration, Vol. 10, No. 2 p. 62-69, 2017. 10.9746/jcmsi.10.62 (PDF)
  10. H. Sasahara, K. Hayashi and M. Nagahara,
    Symbol Detection for Faster-Than-Nyquist Signaling by Sum-of-Absolute-Values Optimization,
    IEEE Signal Processing Letters, vol. 23, no. 12, pp. 1853-1857, Dec. 2016.
    10.1109/LSP.2016.2625839
  11. M. Nagahara, J. Ostergaard, D. E. Quevedo,
    Discrete-time hands-off control by sparse optimization,
    EURASIP Journal on Advances in Signal Processing, 2016:76, Dec. 2016. (PDF)
    10.1186/s13634-016-0372-9
  12. D. Chatterjee, M. Nagahara, D. E. Quevedo, and K. S. M. Rao,
    Characterization of maximum hands-off control,
    Systems & Control Letters, vol. 94, pp. 31-36, Aug. 2016.
    10.1016/j.sysconle.2016.05.002
  13. M. Nagahara and Y. Yamamoto,
    Digital repetitive controller design via sampled-data delayed signal reconstruction,
    Automatica, vol. 65, pp. 203-209, Mar. 2016
    10.1016/j.automatica.2015.11.029
  14. T. Ikeda and M. Nagahara,
    Value function in maximum hands-off control for linear systems,
    Automatica, vol. 64, pp. 190-195, Feb. 2016 (PDF)
    10.1016/j.automatica.2015.10.043
  15. M. Nagahara, D. E. Quevedo, and D. Nesic,
    Maximum Hands-off Control: A Paradigm of Control Effort Minimization,
    IEEE Transactions on Automatic Control, Vol. 61, No. 3, pp. 735-747, 2016. (PDF)
    10.1109/TAC.2015.2452831
  16. M. Nagahara,
    Discrete Signal Reconstruction by Sum of Absolute Values,
    IEEE Signal Processing Letters, Vol. 22, no. 10, pp. 1575-1579, Oct. 2015. [PDF]
    10.1109/LSP.2015.2414932
  17. H. Sasahara, M. Nagahara, K. Hayashi, and Y. Yamamoto,
    Digital Cancelation of Self-Interference for Single-Frequency Full-Duplex Relay Stations via Sampled-Data Control,
    SICE Journal of Control, Measurement, and System Integration, Vol. 8, No. 5, pp. 321-327, 2015.
  18. M. Nagahara and C. F. Martin,
    L1 Control Theoretic Smoothing Splines,
    IEEE Signal Processing Letters, vol. 21, no. 11, pp. 1394-1397, Nov. 2014.
    [PDF]
    10.1109/LSP.2014.2337017
  19. M. Nagahara, D. E. Quevedo, and J. Ostergaard,
    Sparse Packetized Predictive Control for Networked Control over Erasure Channels,
    IEEE Transactions on Automatic Control, vol. 59, no. 7, pp. 1899-1905, July 2014.
    [PDF]
    10.1109/TAC.2013.2294622
  20. M. Nagahara and Y. Yamamoto,
    H-infinity-optimal fractional delay filters,
    IEEE Transactions on Signal Processing, Vol. 61, No. 18, pp. 4473-4480, 2013.
    [PDF]
  21. M. Nagahara and C. F. Martin,
    Monotone Smoothing Splines Using General Linear Systems,
    Asian Journal of Control, Vol. 5, No. 2, pp. 461-468, Mar. 2013.
    [PDF]
  22. K. Hayashi, M. Nagahara, and T. Tanaka,
    A User's Guide to Compressed Sensing for Communications Systems,
    invited paper, IEICE Trans. on Communications, Vol. E96-B, No. 3, pp. 685-712, Mar. 2013.
    [PDF] [SCILAB Codes]
    honored as 2014 IEICE Communications Society Best Tutorial Paper Award
  23. M. Nagahara and Y. Yamamoto,
    Frequency Domain Min-Max Optimization of Noise-Shaping Delta-Sigma Modulators,
    IEEE Transactions on Signal Processing, Vol. 60, No. 6, pp. 2828-2839, 2012.
    [PDF] [MATLAB Codes]
  24. Y. Yamamoto, M. Nagahara and P. P. Khargonekar,
    A Brief Overview of Signal Reconstruction via Sampled-Data H-infinity Optimization,
    Applied and Computational Mathematics, Vol. 11, No. 1, pp. 3-18, 2012.
    [PDF]
  25. M. Nagahara, T. Matsuda, and K. Hayashi,
    Compressive Sampling for Remote Control Systems,
    IEICE Trans. on Fundamentals, Vol. E95-A, No. 4, pp. 713-722, Apr. 2012.
    [PDF]
  26. Y. Yamamoto, M. Nagahara, and P. P. Khargonekar,
    Signal Reconstruction via H-infinity Sampled-Data Control Theory -- Beyond the Shannon Paradigm,
    IEEE Transactions on Signal Processing, Vol. 60, No. 2, pp. 613-625, Feb. 2012.
    [PDF]
  27. S. Miyazaki, T. Kudoh, M. Nagahara, N. Hayashi, and Y. Yamamoto,
    Power Balancing Control for Energy Management Systems,
    Panasonic Technical Journal, Vol. 57, No. 4, pp. 17-22, Jan. 2012. (in Japanese)
  28. T. Matsuda, M. Nagahara, and K. Hayashi,
    Link quality classifier with compressed sensing based on l1-l2 optimization,
    IEEE Communications Letters, vol. 15, no. 10, pp. 1117-1119, Oct. 2011.
  29. M. Nagahara, M. Ogura, and Y. Yamamoto,
    H-infinity design of periodically nonuniform interpolation and decimation for non-band-limited signals,
    SICE Journal of Control, Measurement, and System Integration, Vol. 4, No. 5, pp. 341-348, 2011.
    [PDF]
    honored as 2012 SICE Best Paper Award
  30. M. Nagahara and Y. Yamamoto,
    H-infinity optimal approxmation for causal spline interpolation,
    Signal Processing, Vol. 91, No. 2, pp. 176-184, 2011.
    [PDF]
  31. K. Kashima, Y. Yamamoto and M. Nagahara,
    Optimal wavelet expansion via sampled-data control theory,
    IEEE Signal Processing Letters, Vol. 11, Issue 2, pp. 79-82, 2004.
    [PDF]
  32. Y. Yamamoto, B. D. O. Anderson, M. Nagahara and Y. Koyanagi,
    Optimizing FIR approximation for discrete-time IIR filters,
    IEEE Signal Processing Letters, Vol. 10, Issue 9, pp. 273-276, 2003.
    [PDF]
  33. M. Nagahara, Y. Yamamoto,
    Sampled-data H-infinity design for digital communication systems,
    Transactions of ISCIE, Vol. 16, No. 1, pp. 38-43, 2003 (in Japanese)
  34. Y. Wakasa, D. Yasufuku, M. Nagahara and Y. Yamamoto,
    Sampled-data design of interpolators using the cutting-plane method,
    SICE Transactions, Vol. 38, No. 5, pp. 462-468, 2002 (in Japanese)
  35. M. Nagahara and Y. Yamamoto,
    Sampled-data H-infinity design of interpolators,
    Transactions of ISCIE, Vol. 14, No. 10, pp. 483-489, 2001 (in Japanese)
Refereed Conference Proceedings
  1. Y. Yamamoto, K. Yamamoto, and M. Nagahara,
    Sampled-data Filters with Compactly Supported Acquisition Prefilters,
    2018 IEEE Conference on Decision and Control (CDC), 17-19, Dec 2018. (to appear)
  2. M. Kishida*, M. Barforooshan, and M. Nagahara,
    Maximum Hands-Off Control for Discrete-time Linear Systems Subject to Polytopic Uncertainties,
    Conference: 7th IFAC Workshop on Distributed Estimation and Control in Networked Systems (NecSys2018) (to appear)
  3. K. Fujimoto, J. Muramatsu, and M. nagahara,
    Dynamical Model of Overconfidence Phenomena Due to ZE-type Confirmation Bias,,
    IEEE International Conference on Systems, Man, and Cybernetics (SMC2018), 7-10 Oct 2018. (to appear)
  4. M. Nagahara and D. Chatterjee,
    Optimal Control with Sparsity Constraints in the Frequency Domain,
    SICE Annual Conference, 11-14 Sept, 2018. (to appear)
  5. N. Hayashi and M. Nagahara,
    Consensus-Based Distributed Event-Triggered Sparse Modeling,
    SICE Annual Conference, 11-14 Sept, 2018. (to appear)
  6. Keisuke Nakashima, Takahiro Matsuda, Masaaki Nagahara, and Tetsuya Takine,
    Control Vector Selection with Delay Estimation in Wireless Networked Control Systems,
    IEEE International Conference on Consumer Electronics (Taichung), pp. 81-82, 19-21 May 2018.
  7. Kaoru Yamamoto, Masaaki Nagahara, Yutaka Yamamoto,
    Signal Reconstruction with Generalized Sampling,
    56th IEEE Conference on Decision and Control (CDC2017), Melbourne, Australia, Dec. 12-15, 2017.
  8. M. Nagahara, S. Takahashi, H. Higuchi, and T. Takebayashi,
    Sparse Optimization of Physical Distribution Systems based on Maximum Hands-off Control,
    2017 International Symposium on Nonlinear Theory & Its Applications (NOLTA2017), Cancun, Mexico, Dec. 4-7, 2017.
  9. Keisuke Nakashima, Takahiro Matsuda, Masaaki Nagahara, and Tetsuya Takine,
    Cross-Layer Design of an LQG Controller in Multihop TDMA-Based Wireless Networked Control Systems,
    IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), Montreal, QC, Canada, October 8-13, 2017.
  10. Masaaki Nagahara, Niharika Challapalli, and Mathukumalli Vidyasagar,
    CLOT Optimization for Distributed Hands-Off Control with Continuity,
    SICE Annual Conference 2017, Sept. 21, 2017.
  11. Kaoru Yamamoto, Yutaka Yamamoto, and Masaaki Nagahara,
    Hypertracking Beyond the Nyquist Frequency,
    Emerging Applications of Control and System Theory (EACST 2017), Dallas, Texas, USA, Sept. 2017.
  12. Kaoru Yamamoto, Yutaka Yamamoto, and Masaaki Nagahara,
    Simultaneous rejection of signals below and above the Nyquist frequency,
    1st IEEE Conference on Control Technology and Applications (CCTA), Hawaii, USA, Aug. 29, 2017.
  13. Niharika Challapalli, Masaaki Nagahara, and Mathukumalli Vidyasagar,
    Continuous Hands-off Control by CLOT Norm Minimization,
    Proc. of the 20th IFAC World Congress 2017, pp. 15019-15024, Toulouse, France, July 14, 2017.
  14. Hampei Sasahara, Kazunori Hayashi, Masaaki Nagahara,
    Symbol Detection for Faster-than-Nyquist Signaling by Sum-of-Absolute-Values Optimization,
    The 42nd IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2017), 2017.
  15. Shuichi Ohno, Teruyuki Shiraki, M.Rizwan Tariq, Masaaki Nagahara,
    RATE-DISTORTION ANALYSIS OF DELTA-SIGMA MODULATORS,
    The 42nd IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2017), 2017.
  16. Y. Yamamoto, K. Yamamoto and M. Nagahara,
    Tracking of signals beyond the Nyquist frequency,
    2016 IEEE 55th Conference on Decision and Control (CDC), Las Vegas, NV, 2016, pp. 4003-4008. doi: 10.1109/CDC.2016.7798875
  17. T. Ikeda, M. Nagahara and K. Kashima,
    Consensus by maximum hands-off distributed control with sampled-data state observation,
    2016 IEEE 55th Conference on Decision and Control (CDC), Las Vegas, NV, 2016, pp. 962-966. doi: 10.1109/CDC.2016.7798392
  18. M. R. Tariq, S. Ohno and M. Nagahara,
    Synthesis of IIR error feedback filters for ΔΣ modulators using approximation,
    2016 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA), Jeju, 2016.
  19. R. Hayakawa, K. Hayashi, H. Sasahara, and M. Nagahara,
    Massive Overloaded MIMO Signal Detection via Convex Optimization with Proximal Splitting,
    The 2016 European Signal Processing Conference (EUSIPCO), Aug.-Sept. 2016.
  20. T. Ikeda, M. Nagahara and D. E. Quevedo,
    Quantized self-triggered control by sum-of-absolute-values optimization,
    22nd International Symposium on Mathematical Theory of Networks and Systems (MTNS), Minneapolis, Jul. 2016.
  21. H. Sasahara, K. Hayashi, M. Nagahara, and Y. Yamamoto,
    Control Theoretical Approach for Single-Frequency Full-Duplex Wireless Relaying,
    22nd International Symposium on Mathematical Theory of Networks and Systems (MTNS), Minneapolis, Jul. 2016.
  22. T. Ikeda and M. Nagahara,
    Fundamental analysis of sparse optimal control and its application to discrete-valued control,
    2016 American Control Conference (ACC), Boston, Jul. 2016.
  23. T. Ikeda and M. Nagahara,
    Maximum hands-off control without normality assumption,
    2016 American Control Conference (ACC), Boston, Jul. 2016.
  24. H. Sasahara, K. Hayashi, and M. Nagahara,
    Mutiuser Detection by MAP Estimation with Sum-of-Absolute-Values Relaxation,
    IEEE International Conference on Communiations (ICC) 2016, May 2016.
  25. T. Ikeda and M. Nagahara,
    Computation of maximum hands-off control,
    SICE International Symposium on Control Systems 2016, Nagoya, Mar. 9, 2016.
  26. H. Sasahara, K. Hayashi, and M. Nagahara,
    Faster-than-Nyquist Signaling by Sum-of-Absolute-Values,
    SICE International Symposium on Control Systems 2016, Nagoya, Mar. 2016.
  27. Hampei Sasahara, Masaaki Nagahara, Kazunori Hayashi, Yutaka Yamamoto,
    Sampled-data H-infinity optimization for self-interference suppression in baseband signal subspaces,
    54th IEEE Conference on Decision and Control, Osaka, pp. 7244-7249, Dec. 18, 2015.
  28. Hampei Sasahara, Masaaki Nagahara, Kazunori Hayashi, Yutaka Yamamoto,
    Time-domain equalization for single-frequency full-duplex wireless relay using H2 optimal control,
    47th ISCIE International Symposium on Stochastic Systems Theory and Its Applications (SSS'15), Hawaii, Dec. 5, 2015.
  29. T. Ikeda and M. Nagahara,
    Discrete model predictive control by sum-of-absolute-values optimization,
    47th ISCIE International Symposium on Stochastic Systems Theory and Its Applications (SSS'15), Hawaii, Dec. 5, 2015.
  30. Masaki Ogura, Masaaki Nagahara, and Victor M. Preciado,
    L1-optimal disturbance rejection for disease spread over time-varying networks,
    The First International Symposium on Swarm Behavior and Bio-Inspired Robotics (SWARM2015), pp. 377-378, October 28-30, Kyoto, 2015.
  31. H. Sasahara, M. Nagahara, K. Hayashi, and Y. Yamamoto,
    Loop-Back Interference Suppression for OFDM Signals via Sampled-Data Control
    10th Asian Control Conference (ASCC), paper ID: 1570072769, pp. 1-4, May-Jun. 2015.
  32. T. Ikeda and M. Nagahara,
    Continuity of the Value Function in Sparse Optimal Control,
    10th Asian Control Conference (ASCC), paper ID: 1570074957, pp. 1-4, May-Jun. 2015.
  33. H. Sasahara, M. Nagahara, K. Hayashi, and Y. Yamamoto,
    Communication Performance Analysis of Sampled-Data H-infinity Optimal Coupling Wave Canceler
    SICE International Symposium on Control Systems, 513-5 (2 pages), Mar. 2015.
  34. T. Ikeda and M. Nagahara,
    Value Functions in Sparse Optimal and L1 Optimal Controls,
    SICE International Symposium on Control Systems, 513-3 (6 pages), Mar. 2015.
  35. M. Nagahara, H. Sasahara, K. Hayashi, and Y. Yamamoto,
    Sampled-data H-infinity design of coupling wave cancelers in single-frequency full-duplex relay stations, SICE Annual Conference 2014, pp. 401-406, Sept. 2014. (PDF)
  36. M. Nagahara and Y. Yamamoto,
    FIR digital filter design by sampled-data H-infinity discretization,
    The 19th IFAC World Congress, pp. 3110-3115, Aug. 2014. (PDF)
  37. M. Nagahara, D. E. Quevedo, and D. Nesic,
    Maximum-hands-off control and L1 optimality,
    52nd IEEE Conference on Decision and Control (CDC), pp. 3825-3830, Dec. 2013. (PDF)
  38. M. Nagahara and Y. Yamamoto,
    Optimal discretization of analog filters via sampled-data H-infinity control theory,
    The 2013 IEEE Multi-Conference on Systems and Control (MSC 2013), pp. 527-532, Aug. 2013. (PDF)
  39. M. Nagahara and C. F. Martin,
    L1-optimal splines for outlier rejection,
    The 59th World Statistics Congress, pp. 1137-1142, Aug. 2013. (PDF)
  40. M. Nagahara, D. E. Quevedo, and J. Ostergaard,
    Packetized predictive control for rate-limited networks via sparse representation,
    51st IEEE Conference on Decision and Control (CDC), pp. 1362-1367, Dec. 2012. (PDF) (Slides)
  41. M. Nagahara, Y. Yamamoto, S. Miyazaki, T. Kudoh, and N. Hayashi,
    H-infinity control of microgrids involving gas turbine engines and batteries,
    51st IEEE Conference on Decision and Control (CDC), pp. 4241-4246, Dec. 2012. (PDF)
  42. M. Nagahara, D. Quevedo, and J. Ostergaard,
    Sparsely-packetized predictive control by orthogonal matching pursuit
    Mathematical Theory of Networks and Systems (MTNS2012), paper ID: 0156 (3 pages), Jul. 2012. (PDF)
  43. M. Nagahara and Y. Yamamoto,
    H-infinity optimal fractional delay filters with application to pitch shifting
    2012 IFAC Workshop on Time Delay Systems, pp. 61-66, Jun. 2012. (PDF)
  44. M. Nagahara, D. E. Quevedo, T. Matsuda, and K. Hayashi,
    Compressive sampling for networked feedback control,
    IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), pp. 2733-2736, Mar. 2012.(PDF) (Poster)
  45. M. Nagahara, D. E. Quevedo, J. Ostergaard, T. Matsuda, and K. Hayashi,
    Sparse Command Generator for Remote Control,
    The 9th IEEE International Conference on Control & Automation (ICCA), pp. 1055-1059, Dec. 2011. (PDF) (Slides)
  46. M. Nagahara, K. Hanibuchi, and Y. Yamamoto,
    Pitch Shifting by H-Infinity-Optimal Variable Fractional Delay Filters,
    IFAC 18th World Congress, pp. 4386-4391, Aug. 2011. [Demos] (PDF)
  47. M. Nagahara, D. E. Quevedo
    Sparse Representations for Packetized Predictive Networked Control,
    IFAC 18th World Congress, pp. 84-89, Aug. 2011. (PDF) (Slides)
  48. M. Nagahara, K. Hanibuchi, and Y. Yamamoto,
    Duration-invariant pitch-shifting for stringed instruments,
    3rd International Conference on Control and Optimization with Industrial Applications (COIA), paper ID: MAI-EE01 (2 pages), Aug. 2011.
  49. M. Nagahara, C. F. Martin, and Y. Yamamoto,
    Quadratic programming for monotone control theoretic splines,
    SICE Annual Conference 2010, pp. 531-534, Taipei, 2010 (PDF)
  50. M. Nagahara and Y. Yamamoto,
    Robust Repetitive Control by Sampled-Data H-Infinity Filters,
    48th IEEE Conference on Decision and Control and 28th Chinese Control Conference (CDC/CCC), pp. 8136-8141, 2009 (PDF)
  51. M. Nagahara, M. Ogura, and Y. Yamamoto,
    A Novel Approach to Repetitive Control via Sampled-data H-infinity Filters,
    the 7th Asian Control Conference (ASCC), pp. 160-165, Aug, 2009 (PDF)
  52. M. Nagahara and Y. Yamamoto,
    Optimal Design of Delta-Sigma Modulators via Generalized KYP Lemma,
    ICROS-SICE International Joint Conference 2009 (ICASS-SICE2009), pp. 4376-4379, Aug. 2009 (PDF)
  53. M. Nagahara, K. I. Sato, and Y. Yamamoto,
    H2/H-infinity Approach to the Histogram Method for Density Estimation,
    ICROS-SICE International Joint Conference 2009 (ICASS-SICE2009), pp. 1230-1233, Aug. 2009 (PDF)
    honored as a finalist of SICE Annual Conference Award
  54. M. Nagahara and Y. Yamamoto,
    Optimal noise shaping in delta-sigmal modulators via generalized KYP lemma,
    IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), pp. 3381-3384, Apr. 2009 (PDF)
  55. M. Nagahara, K. Sato, and Y. Yamamoto,
    H-infinity optimal nonparametric density estimation from quantized samples,
    The 40th ISCIE International Symposium on Stochastic Systems Theory and Its Applications (SSS), Nov. 2008 (PDF)
  56. M. Nagahara, M. Ogura, and Y. Yamamoto,
    Interpolation of nonuniform decimated signals via sampled-data H-infinity optimization,
    SICE Annual Conference, pp. 1151-1154, Aug. 2008 (PDF)
  57. M. Nagahara and Y. Yamamoto, and Pramod P. Khargonekar,
    Stability of signal reconstruction filters via cardinal exponential splines,
    IFAC World Congress, pp. 1414-1419, Jul. 2008 (PDF)
  58. M. Nagahara and Y. Yamamoto,
    Hybrid design of filtered-x adaptive algorithm via sampled-data control theory,
    IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), pp. 353-356, Apr. 2008 (PDF)
  59. M. Ogura, M. Nagahara and Y. Yamamoto,
    Optimal wavelet expansion via sampled-data H-infinity control theory,
    SICE Annual Conference, pp. 1422-1426, Oct. 2007 (PDF)
  60. M. Nagahara and Y. Yamamoto,
    Causal spline interpolation by H-infinity optimization,
    IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Vol. III, pp. 1469-1472, Apr. 2007 (PDF)
  61. M. Nagahara, T. Wada and Y. Yamamoto,
    Causal spline interpolation by H-infinity optimization,
    SICE-ICCAS 2006, pp. 4160-4163, Oct. 2006 (PDF)
  62. M. Nagahara, T. Wada and Y. Yamamoto,
    Design of delta-sigma converters via sampled-data H-infinity optimization,
    Mathematical Theory of Networks and Systems, MTNS2006, paper ID: FrP09.3 (9 pages), Jul. 2006 (PDF)
  63. M. Nagahara, T. Wada and Y. Yamamoto,
    Design of oversampling delta-sigma DA converters via H-infinity optimization,
    IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Vol. III, pp. 612-615, May, 2006
    (PDF article, PDF poster (page 1), PDF poster (page 2))
  64. H. Kakemizu, M. Nagahara, A. Kobayashi and Y. Yamamoto,
    Noise reduction of JPEG images by sampled-data H-infinity optimal epsilon filters,
    SICE Annual Conference, pp. 1080-1085, Aug. 2005 (PDF)
    honored as a finalist of Young Author's Award
  65. M. Nagahara and Y. Yamamoto,
    Optimal design of fractional delay FIR filters without band-limiting assumption,
    IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP)
    , pp. 221-224, Mar. 2005
    (PDF article, PDF poster)
  66. Y. Ohta and M. Nagahara,
    On the computation of value sets of multi-linear functions,
    2004 CCA/ISIC/CACSD
    , pp. 161-166, Taipei, Sept. 2004 (PDF)
  67. G. Ooi, M. Nagahara and Y. Yamamoto,
    Repetitive control via sampled-data H-infinity control,
    IFAC Workshop on Periodic Control Systems
    , pp. 561-565, Aug. 2004 (PDF)
  68. S. Ashida, H. Kakemizu, M. Nagahara and Y. Yamamoto,
    Sampled-data audio signal compression with Huffman coding,
    SICE Annual Conference, pp. 972-976, Sapporo, Aug. 2004 (PDF)
  69. M. Nagahara and Y. Yamamoto,
    Optimal design of fractional delay filters,
    Proc. of 42nd Conf. on Decision and Control (CDC)
    , pp. 6539-6544, Maui, Dec. 2003 (PDF)
  70. S. Ashida, M. Nagahara and Y. Yamamoto,
    Audio signal compression via sampled-data control theory,
    SICE Annual Conference, pp. 1182-1185, Fukui, Aug. 2003 (PDF)
  71. Y. Wakasa, D. Yasufuku, M. Nagahara and Y. Yamamoto,
    Sampled-data design of interpolators using the cutting-plane method,
    Proc. of 41st Conf. on Decision and Control (CDC)
    , pp. 2564-2569, Las Vegas, Dec. 2002 (PDF)
  72. Y. Yamamoto, B. D. O. Anderson and M. Nagahara,
    Approximating sampled-data systems with applications to digital redesign,
    Proc. of 41st Conf. on Decision and Control (CDC)
    , pp. 3724-3729, Las Vegas, Dec. 2002 (PDF)
  73. J. Shimada, M. Kawakami, S. Endoh, F. Ikeda, M. Nagahara and Y. Yamamoto,
    The basis of magnetic navigation system for surgery,,
    Computer Assisted Radiology and Surgery (CARS),
    Proc. of the 16th International Congress and Exhibition
    , p. 1088 June 26-29, 2002
  74. Y. Yamamoto, B. D. O. Anderson, M. Nagahara and Y. Koyanagi,
    Optimal FIR approximation for discrete-time IIR filters,
    Proc. 4th Asian Control Conference (ASCC)
    , pp. 2008-2013, Singapore, Sept. 2002 (PDF)
  75. K. Kashima, Y. Yamamoto and M. Nagahara,
    Optimal wavelet expansion via sampled-data control,
    40th Conf. on Decision and Control (CDC)
    , pp. 4788-4793, Orlando, Dec. 2001 (PDF)
  76. M. Nagahara and Y. Yamamoto,
    Design for digital communication systems via sampled data H infinity control,
    IFAC Workshop on Periodic Control Systems
    , pp. 211-216, Cernobbio-Como, Aug. 2001 (PDF)
  77. M. Nagahara and Y. Yamamoto,
    A new design for sample-rate converters,
    39th Conf. on Decision and Control (CDC)
    , pp. 4296-4301, Sydney, Dec. 2000 (PDF)
  78. Y. Yamamoto, M. Nagahara and H. Fujioka,
    Multirate signal reconstruction and filter design via sampled-data H-infinity control,
    Mathematical Theory of Networks and Systems, MTNS2000
    , CD-ROM, Perpignan, Jun. 2000 (PDF)
Doctoral Thesis
  1. M. Nagahara,
    Multirate Digital Signal Processing via Sampled-Data H-Infinity Optimization,
    Doctoral Thesis, Kyoto University, 2003 (PDF)
Others
  1. M. Nagahara,
    Sparsity Methods for Networked Control,
    IEICE SmartCom2014, Singapore, Oct. 31, 2014.(PDF)
  2. M. Nagahara,
    From digital control to signal processing,
    Indonesia-Japan Joint Seminar on Informatics Researchers and Trends, Jakarta, Indonesia, Sept. 17, 2014.
  3. M. Nagahara,
    Sparsity-promoting methods in remote control systems,
    The 9th IEEE VTS Asia Pacific Wireless Communications Symposium(APWCS2012), Aug. 2012. (PDF)
  4. K. Hayashi and M. Nagahara,
    A Brief Introduction to Compressed Sensing,
    The 9th IEEE VTS Asia Pacific Wireless Communications Symposium(APWCS2012), Aug. 2012.
  5. Y. Yamamoto and M. Nagahara,
    Digital filter design with optimal analog performance,
    Kyoto University International Symposium
    , 2001 (PDF)