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Development of the design theory of oversampled filter banks and the applications to signal estimation problems

Research Project

Project/Area Number 18760264
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Communication/Network engineering
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

TANAKA Toshihisa  Tokyo University of Agriculture and Technology, 大学院共生科学技術研究院, 准教授 (70360584)

Project Period (FY) 2006 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,800,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2007: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2006: ¥1,400,000 (Direct Cost: ¥1,400,000)
Keywords信号処理 / マルチレート信号処理 / フィルタ / 画像 / 音声・音響 / 通信 / フィルタバンク / 音響処理 / 過標本化 / 冗長システム
Research Abstract

本研究では,過標本化フィルタバンクの設計問題に対する理論的な検討を加え,さらに信号処理における応用問題について検討を行った.研究の結果,特定の条件下において,任意の帯域通過特性をもつ過標本化フィルタバンクを,代数演算のみで設計できることが可能となった.さらに,音声信号処理における音高変換やピッチ変換,さらにブラインド信号分離におけるpermutation 問題に過標本化フィルタバンクが有効であることがわかった.

Report

(4 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • Research Products

    (11 results)

All 2009 2008 2007

All Journal Article (7 results) (of which Peer Reviewed: 3 results) Presentation (4 results)

  • [Journal Article] Time-domain blind signal separation of convolutive mixtures via multidimensional independent component analysis2009

    • Author(s)
      T. Murakami, T. Tanaka, and Y. Ishida
    • Journal Title

      IEICE Trans. Fundamentals vol. E92-A

      Pages: 733-744

    • NAID

      10026856295

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Time-domain blind signal separation of convolutive mixtures via multidimensional independent component analysis2009

    • Author(s)
      T. Murakami, T. Tanaka, and Y. Ishida
    • Journal Title

      IEICE Trans. Fundamentals E92-A

      Pages: 733-744

    • NAID

      10026856295

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 2次元経験的モード分解を用いた照明効果の除去2009

    • Author(s)
      大矢孟, 田中聡久
    • Journal Title

      信学技報 SIP2008-161

      Pages: 219-224

    • NAID

      110007131823

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Demosaicking based on optimization and projection in different frequency bands2008

    • Author(s)
      O. A. Omer and T. Tanaka
    • Journal Title

      EURASIP J. Image and Video Processing vol. 2008

      Pages: 14-14

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Subband decomposition based on a musical scale for a phase vocoder2008

    • Author(s)
      村上隆啓, 越川尚樹, 大矢孟, 田中聡久, 石田義久
    • Journal Title

      第23回信号処理シンポジウム論文集

      Pages: 58-63

    • Related Report
      2008 Annual Research Report
  • [Journal Article] A direct design of oversampled perfect reconstruction bandpass FIR filterbanks with real coefficients2007

    • Author(s)
      S. Komeiji and T. Tanaka
    • Journal Title

      Proc. NCSP 2007

      Pages: 611-614

    • Related Report
      2008 Final Research Report
  • [Journal Article] A direct design of oversamplea perfect reconstruction bandpass FIR filterbanks with real coefficients2007

    • Author(s)
      Shuji Komeiji, Toshihisa Tanaka
    • Journal Title

      Proc. NCSP 07

      Pages: 611-614

    • Related Report
      2006 Annual Research Report
  • [Presentation] 2 次元経験的モード分解を用いた照明効果の除去2009

    • Author(s)
      大矢孟,田中聡久
    • Organizer
      電子情報通信学会信号処理研究会
    • Place of Presentation
      熊本大学 (熊本県)
    • Related Report
      2008 Final Research Report
  • [Presentation] Subband decomposition based on a musical scale for a phase vocoder2008

    • Author(s)
      村上隆啓,越川尚樹,大矢孟,田中聡久,石田義久
    • Organizer
      第 23回信号処理シンポジウム
    • Place of Presentation
      金沢 (石川県)
    • Related Report
      2008 Final Research Report
  • [Presentation] 線形予測による楽曲の音程変換のための適応的次数推定2007

    • Author(s)
      越川尚樹,村上隆啓,田中聡久
    • Organizer
      第22 回信号処理シンポジウム
    • Place of Presentation
      東北大学 (宮城県)
    • Related Report
      2008 Final Research Report
  • [Presentation] 線形予測による楽曲の音程変換のための適応的次数推定2007

    • Author(s)
      越川尚樹, 村上隆啓, 田中聡久
    • Organizer
      第22回信号処理シンポジウム
    • Place of Presentation
      東北大学
    • Related Report
      2007 Annual Research Report

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Published: 2006-04-01   Modified: 2016-04-21  

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