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Accurate and Precise Velocity Measurement of Moving Fluid using Coherency between Adjacent Pulses

Research Project

Project/Area Number 15K14264
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Naval and maritime engineering
Research InstitutionKobe University

Principal Investigator

KOUGUCHI Nobuyoshi  神戸大学, 海洋底探査センター, 教授 (90234690)

Research Collaborator KUBOTA Takashi  
LIU Pen  
IKAWA Akihiro  
Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords精密速度計測 / ドップラー方式 / コヒーレントドップラーソーナー / 波数の決定 / ドップラーソーナー / コヒーレント方式 / パルス間相関 / 精密流速計測 / 海洋計測
Outline of Final Research Achievements

Conventional, usually used, Doppler sonar, though unlimited by velocity range ambiguity, takes seconds to return valuable velocity readings. Coherent Doppler sonar has been proposed to provide accurate velocity with short time lag for current or turbulent. However, the velocity ambiguity seriously limits its general application. In this research, combined Doppler sonar had been proposed to overcome the disadvantages of both conventional and coherent Doppler sonars. An adaptive algorithm was used for combined Doppler sonar to provide accurate and precise velocity information at a wide range of SNRs. Experiments were carried out to evaluate the performance of combined Doppler sonar proposed. Based on experimental results, with suitable ambiguity velocities, combined Doppler sonar would provide accurate and precise velocity information at a wide range of SNRs. Additionally, we applied for a patent about our proposed method.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (12 results)

All 2016 2015 Other

All Journal Article (5 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (4 results) (of which Int'l Joint Research: 2 results) Remarks (2 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] 屋内水槽におけるコヒーレントドップラーソーナーの速度計測実験結果について2016

    • Author(s)
      河口 信義,劉 鵬
    • Journal Title

      海洋音響学会講演論文集

      Volume: 2016 Pages: 5-8

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Experimental Results of Combined Method of Conventional and Coherent Doppler Sonar2015

    • Author(s)
      Peng LIU, Nobuyoshi KOUGUCHI and Takashi KUBOTA
    • Journal Title

      Proceedings of the Oceans '15 IEEE Washington D.C.

      Volume: 2015

    • Related Report
      2015 Research-status Report
  • [Journal Article] Adaptive Algorithm for Combined Method of Conventional and Coherent Doppler Sonar2015

    • Author(s)
      Peng LIU and Nobuyoshi KOUGUCHI
    • Journal Title

      Proceedings of the Oceans '15 IEEE Genova

      Volume: 2015

    • Related Report
      2015 Research-status Report
  • [Journal Article] Performance Evaluation of Adaptive Algorithm for Combined Method of Conventional and Coherent Doppler Sonar2015

    • Author(s)
      Peng LIU and Nobuyoshi KOUGUCHI
    • Journal Title

      海洋音響学会講演論文集

      Volume: 2015 Pages: 39-40

    • Related Report
      2015 Research-status Report
  • [Journal Article] Measurement Error Analysis of Combined Doppler Sonar using Adaptive Algorithm2015

    • Author(s)
      Peng LIU and Nobuyoshi KOUGUCHI
    • Journal Title

      海洋音響学会誌

      Volume: Vol.42, No.1 Pages: 11-22

    • NAID

      130005116104

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 屋内水槽におけるコヒーレントドップラーソーナーの速度計測実験結果について2016

    • Author(s)
      河口 信義
    • Organizer
      海洋音響学会
    • Place of Presentation
      東京大学生産技術研究所(東京都・目黒区)
    • Year and Date
      2016-05-19
    • Related Report
      2016 Annual Research Report
  • [Presentation] Experimental Results of Combined Method of Conventional and Coherent Doppler Sonar2015

    • Author(s)
      Takashi KUBOTA
    • Organizer
      IEEE Oceans
    • Place of Presentation
      Washington D.C. (U.S.A)
    • Year and Date
      2015-10-19
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Adaptive Algorithm for Combined Method of Conventional and Coherent Doppler Sonar2015

    • Author(s)
      Peng LIU
    • Organizer
      IEEE Oceans
    • Place of Presentation
      Genova (Italia)
    • Year and Date
      2015-05-18
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Performance Evaluation of Adaptive Algorithm for Combined Method of Conventional and Coherent Doppler Sonar2015

    • Author(s)
      Peng LIU
    • Organizer
      海洋音響学会
    • Place of Presentation
      東京大学生産技術研究所( 東京都・目黒区駒場)
    • Year and Date
      2015-05-14
    • Related Report
      2015 Research-status Report
  • [Remarks] 神戸大学研究者紹介システム

    • URL

      http://kuid.ofc.kobe-u.ac.jp/InfoSearch/html/researcher/researcher_7f_MdsVxQPTO-IBQ3mbe3w_ja.html

    • Related Report
      2015 Research-status Report
  • [Remarks] 海洋・航海計測学領域ウェブ

    • URL

      http://www.research.kobe-u.ac.jp/gmsc-cyber-nav/

    • Related Report
      2015 Research-status Report
  • [Patent(Industrial Property Rights)] ドプラ速度計及び速度計測方法2015

    • Inventor(s)
      河口信義,劉鵬
    • Industrial Property Rights Holder
      神戸大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2015-085397
    • Filing Date
      2015-04-17
    • Related Report
      2015 Research-status Report

URL: 

Published: 2015-04-16   Modified: 2018-03-22  

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