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2008 Fiscal Year Final Research Report

New methodology in signal processing via sampled-data control theory and its development in new non-stationary system theory

Research Project

  • PDF
Project/Area Number 18360203
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Control engineering
Research InstitutionKyoto University

Principal Investigator

YAMAMOTO Yutaka  Kyoto University, 情報学研究科, 教授 (70115963)

Co-Investigator(Renkei-kenkyūsha) FUJIOKA Hisaya  京都大学, 情報学研究科, 准教授 (60273596)
NAGAHARA Masaaki  京都大学, 情報学研究科, 助教 (90362582)
Project Period (FY) 2006 – 2008
Keywordsサンプル値制御理論 / 完全帯域制限仮定 / ディジタルフィルタノイズ除去 / ブロックノイズ / モスキートノイズ / ウェーブレット
Research Abstract

サンプル値H∞制御理論を用いることによって, 新たなディジタルフィルタ設計法を開発・展開し, 実応用に結びつけた.これにより, 従来のディジタル信号処理とは異なり, アナログ特性最適なディジタルフィルタの設計が可能となり, 圧縮オーディオからの高品位音質の復元, CDソースからの超高域再生, 画像処理におけるブロックノイズ, モスキートノイズなどの効果的な処理が可能となった. ことに, 圧縮オーディオに関しては, 音響処理用民生LSIとして実製品化され, これまでに累計700万石を出荷する実績を上げるに至った. また, ウェーブレット展開などへの新しい応用への道筋も整った.

  • Research Products

    (31 results)

All 2008 2007 2006 Other

All Journal Article (10 results) (of which Peer Reviewed: 10 results) Presentation (17 results) Remarks (1 results) Patent(Industrial Property Rights) (3 results) (of which Overseas: 1 results)

  • [Journal Article] On standard H∞ control problems for systems with infinitely many unstable pole, Systems2008

    • Author(s)
      K. Kashima and Y. Yamamoto
    • Journal Title

      Control Letts vol.57

      Pages: 309-314

    • Peer Reviewed
  • [Journal Article] Finite rank criteria for H∞ control of infinitedimensional systems2008

    • Author(s)
      K. Kashima and Y. Yamamoto
    • Journal Title

      IEEE Trans. Autom. Control vol.53, No.4

      Pages: 881-893

    • Peer Reviewed
  • [Journal Article] Behaviors described by rational symbols and the parametrization of the stabilizing controllers2008

    • Author(s)
      J.C. Willems and Y. Yamamoto
    • Journal Title

      Recent Advances in Learning and Control(Springer Lecture Notes in Control and Information Sciences 371) (Springer-Verlag)

      Pages: 263-277

    • Peer Reviewed
  • [Journal Article] Pseudorationalimpulseresponses-algebr aic system theory fordistributed parameter systems2008

    • Author(s)
      Y. Yamamoto
    • Journal Title

      SICE Journal of Control, Measurement, and System Integration(SICE JCMSI) vol.1, No.1

      Pages: 51-57

    • Peer Reviewed
  • [Journal Article] New Development of Digital Signal Processing via Sampled-data Control Theory2007

    • Author(s)
      Y. Yamamoto
    • Journal Title

      Modeling, Estimation and Control-Festschrift in honor of Giorgio Picci's 65th birthday(Spinger Lecture Notes in Control and Information Sciences 364) (Springer-Verlag)

      Pages: 345-355

    • Peer Reviewed
  • [Journal Article] Parameterization of suboptimal solutions of the Nehari problem for infinite-dimensional systems2007

    • Author(s)
      Kashima, H.¨Ozbay and Y. Yamamoto
    • Journal Title

      IEEE Trans. Autom. Control vol.53, No.12

      Pages: 2369-2374

    • Peer Reviewed
  • [Journal Article] System theory for numerical analysis, Automatica2007

    • Author(s)
      K. Kashima and Y. Yamamoto
    • Journal Title

      vol.43

      Pages: 1156-1164

    • Peer Reviewed
  • [Journal Article] Behaviors defined by rational functions2007

    • Author(s)
      J.C. Willems and Y. Yamamoto
    • Journal Title

      LinearAlgebra and Its Applications vol.425

      Pages: 226-241

    • Peer Reviewed
  • [Journal Article] On the state of behaviors Linear Algebra and Its Applications2007

    • Author(s)
      P.A. Fuhrmann, P. Rapisarda and Y. Yamamoto
    • Journal Title

      vol.424

      Pages: 570-614

    • Peer Reviewed
  • [Journal Article] サンプル値制御理論を用いた圧縮オーディオ向け高域補正技術2007

    • Author(s)
      藤山, 蚊野, 岩崎, 海部, 山本
    • Journal Title

      Trans. ISCIE vol.20, No.1

      Pages: 31-38

    • Peer Reviewed
  • [Presentation] Behavioral controllability and coprimeness for a class of infinite-dimensional systems2008

    • Author(s)
      Y. Yamamoto and J.C. Willems
    • Organizer
      47th IEEE CDC
    • Place of Presentation
      Cancun, Mexico
    • Year and Date
      20080000
  • [Presentation] Interpolation of nonuniform decimated signals via sampled-data H∞ optimization2008

    • Author(s)
      M.Nagahara, M.Ogura and Y.Yamamoto
    • Organizer
      SICE Annual Conference
    • Place of Presentation
      Tokyo, Japan
    • Year and Date
      20080000
  • [Presentation] Linear differential behaviors described by rational symbols2008

    • Author(s)
      J.C. Willems and Y. Yamamoto
    • Organizer
      17th IFAC World Congress
    • Place of Presentation
      Seoul, Korea
    • Year and Date
      20080000
  • [Presentation] Stability of signal reconstruction filters via cardinal exponential splines2008

    • Author(s)
      M. Nagahara, Y. Yamamoto, P.P. Khargonekar
    • Organizer
      17th IFAC World Congress
    • Place of Presentation
      Seoul, Korea
    • Year and Date
      20080000
  • [Presentation] Minimal representations for delay systems2008

    • Author(s)
      Y. Yamamoto
    • Organizer
      17th IFAC World Congress
    • Place of Presentation
      Seoul, Korea
    • Year and Date
      20080000
  • [Presentation] Hybrid design of filtered-x adaptive algorithm via sampled-data control theory2008

    • Author(s)
      M. Nagahara and Y. Yamamoto
    • Organizer
      IEEE Int'l Conf. Acoustics, Speech, & Signal Processing(ICASSP)
    • Place of Presentation
      Las Vegas,USA
    • Year and Date
      20080000
  • [Presentation] Parametrization of the set of regular and superregular stabilizing controllers2007

    • Author(s)
      J.C. Willems and Y. Yamamoto
    • Organizer
      46th IEEE CDC
    • Place of Presentation
      New Orleans,USA
    • Year and Date
      20070000
  • [Presentation] Pseudorational transfer functions-A survey of a class of infinite dimensionalsystems2007

    • Author(s)
      Y. Yamamoto
    • Organizer
      46th IEEE CDC
    • Place of Presentation
      New Orleans,USA
    • Year and Date
      20070000
  • [Presentation] Coprimeness in the ring of psedorational transfer functions2007

    • Author(s)
      Y. Yamamoto
    • Organizer
      15th Mediterranean Conf. on Control and Automation
    • Place of Presentation
      Athens,Greece
    • Year and Date
      20070000
  • [Presentation] Optimal wavelet expansion via sampled data H-infinity control theory2007

    • Author(s)
      M.Ogura, M.Nagahara and Y.Yamamoto
    • Organizer
      SICE Annual Conference
    • Place of Presentation
      kagawa, Japan
    • Year and Date
      20070000
  • [Presentation] Causal spline interpolation by H∞ optimization2007

    • Author(s)
      M. Nagahara and Y. Yamamoto
    • Organizer
      IEEE International Conference on Acoustics, Speech, and Signal Processing(ICASSP)
    • Place of Presentation
      Hawaii, USA
    • Year and Date
      20070000
  • [Presentation] Behaviors defined by rational functions2006

    • Author(s)
      J.C. Willems and Y.Yamamoto
    • Organizer
      45th IEEE CDC
    • Place of Presentation
      San Diego,USA
    • Year and Date
      20060000
  • [Presentation] A Smith-type predictor for nonminimum phase infinite-dimensional plants and its Dual Structure2006

    • Author(s)
      K. Kashima, T. Yamamoto,and Y. Yamamoto
    • Organizer
      45^<th> IEEE CDC
    • Place of Presentation
      San Diego,USA
    • Year and Date
      20060000
  • [Presentation] Causal spline interpolation by H∞ optimization2006

    • Author(s)
      M. Nagahara, T. Wada and Y. Yamamoto
    • Organizer
      SICE-ICCAS 2006
    • Place of Presentation
      Busan,Korea
    • Year and Date
      20060000
  • [Presentation] Design of ΔΣ DA converters via sampled-data H∞ optimization2006

    • Author(s)
      M.Nagahara, T.Wada,and Y.Yamamoto
    • Organizer
      MTNS 2006
    • Place of Presentation
      Kyoto,Japan
    • Year and Date
      20060000
  • [Presentation] Parameterization of suboptimal interpolants for the Nehari problem2006

    • Author(s)
      K.Kashima, Y.Yamamoto and H.Ozbay
    • Organizer
      MTNS 2006
    • Place of Presentation
      Kyoto,Japan
    • Year and Date
      20060000
  • [Presentation] Design of oversampling delta-sigma DA converters via H-infinity optimization2006

    • Author(s)
      M. Nagahara, T. Wada and Y. Yamamoto
    • Organizer
      IEEE International Conference on Acoustics, Speech, and Signal Processing(ICASSP)
    • Place of Presentation
      Toulouse,France
    • Year and Date
      20060000
  • [Remarks]

    • URL

      http://www-ics.acs.i.kyoto-u.ac.jp/~yy/index.html

  • [Patent(Industrial Property Rights)] 補聴器用の音声信号システムの設計方法、補聴器用の音声信号処理システムおよび補聴器2008

    • Inventor(s)
      山本裕、永原正章
    • Industrial Property Rights Holder
      国立大学法人京都大学
    • Industrial Property Number
      特許出願 : 特願2008-201310
    • Filing Date
      2008-08-04
  • [Patent(Industrial Property Rights)] 補聴器用の音声信号システムの設計方法、補聴器用の音声信号処理システムおよび補聴器2008

    • Inventor(s)
      山本裕、永原正章
    • Industrial Property Rights Holder
      国立大学法人京都大学
    • Industrial Property Number
      特許出願 : 特願2008-278051
    • Filing Date
      2008-10-29
  • [Patent(Industrial Property Rights)] 画像ノイズ除去方法2008

    • Inventor(s)
      山本裕、永原正章、小林陽
    • Industrial Property Rights Holder
      国立大学法人京都大学
    • Industrial Property Number
      PCT/JP2008/003481
    • Filing Date
      2008-11-26
    • Overseas

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Published: 2010-06-10   Modified: 2016-04-21  

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