International Earth Rotation Service - VLBI Technical Development Center News No.10

published by
Communications Research Laboratory, 4-2-1 Nukui-kita, Koganei, Tokyo 184, Japan

CONTENTS

• Overview of the Tenth TDC Meeting (T. Kondo)
• Report of the Technical Workshop for APT and APSG in 1996 (TWAA96) (Y. Takahashi)
• Technical Reports
  • Recent Status of the Key Stone Project VLBI System (Y. Koyama)
  • The Multimedia Virtual Laboratory (MVL) and Its Application to Cooperative Research (S. Hama)
  • Overview of Development of High-speed VLBI Terminal and the Compatibility of VLBI Terminals (Y. Takahashi)
  • Plan for a High-rate Data Recorder and a New Data Acquisition Terminal (H. Kiuchi, et al.)
  • Next Generation VLBI Terminals (Should be) Planned at CRL (T. Kondo)
  • Preliminary Experiments of Radio Interferometer Using Fiberoptic Links Modulated in Radio Frequency (J. Amagai, et al.)
  • Effects of Precession and Nutation on Short (a few Hours) VLBI Experiments (Y. Takahashi)
  • GSI's New Correlation Processing System (Y. Fukuzaki)
  
  
  

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  Technical Development Center (TDC) at the Communications Research Laboratory (CRL) is supposed to do
  1) the development of new observation techniques and new systems for advanced Earth's rotation observations by VLBI and other space techniques,
  2) the promotion of research in Earth rotation by advanced methods in VLBI,
  3) the distribution of new VLBI technology.
  The TDC meeting, attended by the ordinary members from inside the CRL and the special members from the outside, is held twice a year. The special members advise the committee, concerning the plan of technical developments. The TDC newsletter is published biannually by CRL to inform the IERS community its current activities.

  This news was edited by Tetsuro Kondo and Yasuhiro Koyama, Kashima Space Research Center, who are editorial staff members of TDC at the Communications Research Laboratory, Japan. The editors wish to thank Dr.O.J.Sovers for his kind help in the correction of the news translated from Japanese to English.

  Inquires on this issue should be addressed to:

  
                 T. Kondo
                 Kashima Space Research Center
                 Communications Research Laboratory
                 893-1 Hirai, Kashima, Ibaraki 314, Japan
  
                 TEL    : +81-299-84-7137
                 FAX    : +81-299-84-7159
                 e-mail : kondo(AT)nict.go.jp
     
  

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  TECHNICAL DEVELOPMENT CENTER NEWS No.10, May, 1997
  International Earth Rotation Service - VLBI Technical Development Center News
  published by
  Communications Research Laboratory, 4-2-1 Nukui-kita, Koganei, Tokyo 184, Japan
  
  VLBI and related activities at the Communications Research Laboratory are available from the home page of the Radio Astronomy Applications Section of the Kashima Space Research Center on the World Wide Web (WWW). The URL to view the home page is : //www2.nict.go.jp/wireless/spacelab/ksrc/index-j.html
  
  

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  Updated on June 9, 1997.
  
  

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