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On The Real Time Data Processing of UHF Interferometer

Research Project

Project/Area Number 06452200
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 電力工学・電気機器工学
Research InstitutionOsaka University

Principal Investigator

KAWASAKI Zenichiro  Osaka University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (60126852)

Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥5,500,000 (Direct Cost: ¥5,500,000)
Fiscal Year 1995: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1994: ¥3,500,000 (Direct Cost: ¥3,500,000)
Keywordswinter thunderstorm / interferometer / lightning channel / imaging / capacitive antenna / electric field change / leader / return strokes
Research Abstract

We designed and manufactured an Radio Interferometric Receiver to reconstruct lightning channels and progressions inside thunderclouds to understand lightning features. To obtain the high time resolution we digitize the observed data every one microsecond. The receiver consists of eight channels, and the volume of one data set is 20 Mbytes. Due to the enormous size of a data set it is not easy to realize a real time data processing. We operate the Interferometer to observe the Laser Triggered Lightning, and the demand to get a real time image of a lightning channel is increasing. At the beginning of this project we intended to achieve our requirement by using the Digital Signal Processor (DSP). We recognized the recent development of Engineering Workstation (EWS) enables us to carry out the real time data processing. We reorganized the whole system including Interferometric receiver, A/D converter and EWS.We finally realize the quasi Real Time Data Processing for Lightning Observations, and conducted the Winter Thunderstorm Project and the maritime Continent Thunderstorm Experiment. During these two project we operated our Interferometer and captured many interesting data sets. The data processing in detail is now undergoing.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] 河崎善一郎,他: "SFIFIR operation and evaluation of its performance" Geophgsical Research Letters. 21. 1133-1136 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 王道洪,他: "a preliminary study on laser triggered lightning" Journal of Geophysical Research. 99. 16907-16912 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 牛屋知雄,他: "雷放電に伴う電界変化の時間同期多地点観測" 電気学会論文誌B. 114-B. 1160-1167 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] A. M. Hussein, 他: "Simultareous measurements of lightning Paraueters" Journal of Geophysecal Research. 100. 8853-8861 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 王道洪,他: "Luminous propagation of lightning Attachnent" Journal of Geophysecal Research. 100. 11661-11667 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 和田将一,他: "UHF波帯干渉計の製作と雷観測(その1)" 電気学会論文誌B. 116. 322-331 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] J. S. Chang, 他: "Handbook of Electrostatic Processes" Mareel Dekker, Inc, 763 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] A.M.Hussein, W.Janischewskyj, J.-S.Chang, V.Shostak, W.A.Chisholm, P.Dzurevych and Z.-I.Kawasaki: "Simultaneous Measurement of Lightning Parameters for Strokes to the Toronto Canadian National Tower" J.of Geophysical Research. 100, D5. 8853-8861 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] D.Wang, T.Ushio, Z.-I.Kawasaki, K.Matsuura, Y.Shimada, S.Uchida, C.Yamanaka, Y.Izawa, Y.Sonoi and N.Simokura: "A Possible Way to Trigger Lightning Using a Laser" J.of Atmospheric and Terrestrial Physics. 57,5. 456-466 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] D.Wang, Z.-I.Kawasaki, K.Yamamoto, K.Matsuura, J.S.Chang, W.Janischewskyj: "Luminous Propagation of Lightning Attachment to CN Tower" J.of Geophysical Research. 100, D6. 11661-11667 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] D.Wang, N.Takagi, T.Watanabe, T.Ushio, Z.-I.Kawasaki, K.Matsuura, Y.Shimada, S.Uchida and C.Yamanaka: "Progression of Leader System in Long Gap Laser Triggered Discharges" J.of Atmospheric Electricity. 15,2. 67-74 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] M.Kawada, Z.-I.Kawasaki, K.Matsu-ura, M.Kawasaki: "Non-Contact Detection of Electromagnetic Noise Occurrence due to Partial Discharges by Spatial Phase Difference Method" Trans.IEE of Japan. 115-B,10. 1168-1173 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] M.Wada et al.: "UHF Interferometer System and Observation of Lightning Discharge : Part 1 -Performance to Interferometer System-" Trans.IEE of Japan. 116-B. 321-331 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 河崎善一郎他: "SAFIR operation and evaluation of its per formance" Geophysical Research Letters. 21. 1133-1136 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] 王 道洪 他: "A prelimincry study on laser triggered lightning" Journal of Geophysical Research. 99. 16907-16912 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] 牛尾和雄他: "雷放電に伴う電界変化の時間同期多地点観測" 電気学会論文誌B. 114-B. 1160-1167 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] A.M.Hussein 他: "Simultaneous measurement of lightning parameters" Journal of Geophysical Research. 100. 8853-8861 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 王 道洪 他: "Luminous propagation of lightning attachment" Journal of Geophysical Research. 100. 11661-11667 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 和田将一他: "UHF波帯干渉計の製作と雷観測(その1)" 電気学会論文誌B. 116. 322-331 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] J.S.Chang 他: "Handbook of Electrostatic Processes" Marcel Dekker,Inc., 763 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 河崎善一郎他: "SFIFIR operation and evaluction of it's performance" Geophysical Research Letters. 21. 1133-1136 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 王道洪他: "A preliminary study laser-triggered lightning" Journal of Geophysical Research. 99. 16907-16912 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 牛尾知雄他: "雷放電に伴う電界変化の時間同期多地点観測" 電気学会論文誌B. 114. 1160-1167 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 王道洪他: "Luminous propagation of lightning attechmsct to CN Tower" Journal of Geophysical Research. 100(印刷中). (1995)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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