Fundamental Studies on Detection of Signals in Nonstationary Random Noise via Stationarization Approach

• Project/Area Number: 18760064
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Engineering fundamentals
• Research Institution: Wakayama University (2007-2008); Kyoto Institute of Technology (2006)
• Principal Investigator: IJIMA Hiroshi Wakayama University, 教育学部, 講師 (90397604)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,180,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥180,000); Fiscal Year 2008: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2007: ¥1,700,000 (Direct Cost: ¥1,700,000); Fiscal Year 2006: ¥700,000 (Direct Cost: ¥700,000)
• Keywords: 信号検出 / 非定常雑音 / 信号処理 / 時変スペクトル / カルマンフィルタ / 確率過程 / 時変ARMAモデル / ウィグナー分布

Research Abstract

非定常雑音に埋もれた信号の検出問題に対して, 本研究では非定常観測データを定常なデータに変換する手法を開発し, これを定常化操作と名づけた。この手法を用いることによって, 観測データは定常な雑音と信号で構成されることになり, 従来の信号検出問題として取り扱うことが可能となる。また本研究では, 従来手法とは別に, 観測データの定常化で, 信号の存在する区間において, うまく定常化が行えないのではないかと考え, 定常性の検定による信号検出手法を提案した。これらの手法の有効性をシミュレーションおよび, 実実験により確認した。

Research Products

• [Journal Article] Kalman Filter-based Detector of Signals in Nonstationary Random Noise (2009)
  • Author(s): H. Ijima, and A. Ohsumi
  • Journal Title: Proc. 40th ISCIE International Symposium on Stochastic System Theory and Its Applications, Kyoto, Japan (掲載決定)
  • NAID: 130007377325
  • Peer Reviewed
• [Journal Article] 非定常雑音に埋もれた信号の検出-定常化操作によるアプローチ (2008)
  • Author(s): 井嶋博
  • Journal Title: システム/制御/情報 Vol.52, No.11 Pages: 401-406
  • NAID: 110006990676
  • Peer Reviewed
• [Journal Article] Detection of Signals Corrupted by Nonstationary Random Noise via Kalman Filter-Based Stationarization Approach (2008)
  • Author(s): H. Ijima and A. Ohsumi
  • Journal Title: Proc. 16th European Signal Processing Conference(EUSIPCO2008), Lausanne, Switzerland (CD-ROM)
  • NAID: 130006983285
  • Peer Reviewed
• [Journal Article] Detection of Signals Corrupted by Nonstationary Random Noise via Kalman Filter-Based Stationarization Approach (2008)
  • Author(s): H. Ijima, and A. Ohsumi
  • Journal Title: Proc. 16th European Signal Processing Conference (EUSIPCO2008), Lausanne, Switzerland (CD-ROM)
  • NAID: 130006983285
  • Peer Reviewed
• [Journal Article] 非定常雑音に埋もれた信号の検出一定常化操作によるアプローチ (2008)
  • Author(s): 井嶋博
  • Journal Title: システム/制御/情報Vol.52, No.11 52 Pages: 401-406
  • Peer Reviewed
• [Journal Article] Detection of Signals in Nonstationary Random Noise via Stationarization of Data Incorporated with Kalman Filter (2007)
  • Author(s): H. Ijima, Y. Yamashita, and A. Ohsumi
  • Journal Title: Proc. 7th IEEE International Symposium on Signal Processing and Information Technology(ISSPIT 2007), Cairo, Egypt Pages: 1077-1081
  • Peer Reviewed
• [Journal Article] Estimation of Motion Parameters of Moving Target Using Wigner Distribution (2007)
  • Author(s): H. Ijima, A. Matsuoka, T. Nakajima, and A. Ohsumi
  • Journal Title: Proc. 2007 IEEE International Conference on Signal Processing and Communication(ICSPC07), Dubai, UAE Pages: 688-691
  • Peer Reviewed
• [Journal Article] Estimation of Motion Parameters of Moving Target Using Wigner Distribution (2007)
  • Author(s): H. Ijima, A. Matsuoka, T. Nakajima, A. Ohsumi
  • Journal Title: Proc. 2007 IEEE Int. Conf. Signal Processing and Communications Pages: 688-691
  • Peer Reviewed
• [Journal Article] Detection of Signals in Nonstationary Random Noise via Stationarization of Data Incorporated with Kalman Filter (2007)
  • Author(s): H. Ijima, Y. Yamashita, A. Ohsumi
  • Journal Title: Proc. The 7th IEEE Int. Symp. Signal Processing and Information Technology Pages: 1077-1081
  • Peer Reviewed
• [Journal Article] Time-delay Estimation of Signals in Nonstationary Random Noise via Stationarization and Wigner Distribution-based Approach (2006)
  • Author(s): H. Ijima, A. Ohsumi, and S. Yamaguchi
  • Journal Title: Proc. 14th European Signal Processing Conference (CD-ROM)
  • Peer Reviewed
• [Journal Article] Nonlinear Parametric Estimation for Signals in Nonstationary Random Noise via Stationarization and Wigner Distribution (2006)
  • Author(s): H. Ijima, A. Ohsumi, and S. Yamaguchi
  • Journal Title: Proc. 2006 International Symposium on Nonlinear Theory and its Applications Pages: 851-854
  • Peer Reviewed
• [Journal Article] 定常化操作による非定常雑音に埋もれた信号の検出の一手法 (2006)
  • Author(s): 井嶋博・大住晃・奥井亮
  • Journal Title: 電子情報通信学会論文誌 J89-A巻6号 Pages: 535-543
  • NAID: 110007384404
  • Peer Reviewed
• [Journal Article] 定常化操作による非定常雑音に埋もれた信号の検出の一手法 (2006)
  • Author(s): 井嶋博, 大住晃, 奥井亮
  • Journal Title: 電子情報通信学会論文誌 J89-A巻・6号 Pages: 535-543
  • NAID: 110007384404
• [Journal Article] Nonlinear Parametric Estimation for Signals in Nonstationary Random Noise via Stationarization and Wigner Distribution (2006)
  • Author(s): H.Ijima, A.Ohsumi, S.Yamaguchi
  • Journal Title: Proc. 2006 International Symposium on Nonlinear Theory and its Applications Pages: 851-854
• [Journal Article] Time-delay Estimation of Signals in Nonstationary Random Noise via Stationarization and Wigner Distribution-based Approach (2006)
  • Author(s): H.Ijima, A.Ohsumi, S.Yamaguchi
  • Journal Title: Proc. 14th European Signal Processing Conference
• [Presentation] 非定常雑音に埋もれた信号のカルマンフィルタを用いた定常化操作による検出 (2008)
  • Author(s): 井嶋博・大住晃
  • Organizer: 第52回システム制御情報学会研究発表講演会, pp.693-694
  • Place of Presentation: 京都