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2005 Fiscal Year Final Research Report Summary

Research of the navigation support system with AIS and Doppler radars

Research Project

Project/Area Number 15560690
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Naval and maritime engineering
Research InstitutionTokyo University of Marine Science and Technology

Principal Investigator

FUJISAKA Takahiko  Tokyo University of Marine Science and Technology, Faculty of Marine Technology, Associate Professor, 海洋工学部, 助教授 (00345399)

Co-Investigator(Kenkyū-buntansha) IMAZU Hayama  Tokyo University of Marine Science and Technology, Faculty of Marine Technology, Professor, 海洋工学部, 教授 (00016958)
Project Period (FY) 2003 – 2005
KeywordsAIS / Marine Radar / Coherent Radar / Remote Information Sensing / Pulse Doppler Radar
Research Abstract

The following results were obtained in this research.
(1)The resolution of the ISAR (Inverse Synthetic Aperture Radar) images was estimated through the rotational and translational motion data collected in the Tokyo Bay, on board the training ship Shioji Maru during July, 2004. As result, it was shown that the identification of a ship was possible using the ISAR images. First, was clarified the relationship between the cross-range resolution of the ISAR image and the change of the pitch angle of the vessel. Then, was show that the resolution of ISAR images was 0.5mk〜2.0m.
(2)The image of a ship obtained by the marine radar is not necessarily corresponding to its true shape because of multiple reflections and scintillation. Therefore, the estimation of the ship's shape and its aspect from the radar image are difficult at present. In this paper, a method to estimate the ship's shape by means of the integration of the radar images is proposed. According to the proposed method, the aspect angle of the ship can be estimated with 5 degrees error and the length of the ship can be estimated with 40m error.

  • Research Products

    (4 results)

All 2006 2005

All Journal Article (4 results)

  • [Journal Article] レーダ映像の合成による形状推定に関する研究2006

    • Author(s)
      石渡隼也, 藤坂貴彦, 今津隼馬
    • Journal Title

      日本航海学会論文集 第114号

      Pages: 251-257

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Study of estimating shape by integrating radar images2006

    • Author(s)
      J.ISHIWATA, T.FUJISAKA, H.IMAZU
    • Journal Title

      The journal of JAPAN INSTITUTE of NAVIGATION vol.114

      Pages: 251-257

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] 船舶監視におけるISAR画像の分解能2005

    • Author(s)
      藤坂貴彦, 今津隼馬
    • Journal Title

      日本航海学会論文集 第113号

      Pages: 127-133

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Cross range resolution of ISAR images in monitoring ships2005

    • Author(s)
      T.FUJISAKA, H.IMAZU
    • Journal Title

      The journal of JAPAN INSTITUTE of NAVIGATION vol.113

      Pages: 127-133

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 2007-12-13  

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