J-GLOBAL ID:200904060235945780  Research Project code:9950000222 Update date:Mar. 23, 2005

Experiment on an optically coupled real time radio interferometer

Study period:1997 - 0
Organization (1):
Investigating Researcher (7):
Research overview:
To cooperate a joint experiment by the National Astronomical Observatory of Japan-Communications Research Laboratory-NTT, connection was made to the Mitaka campus, National Astronomical Observatory of Japan, apan Aerospace Exploration Agency, Usuda Deep Space Center, and a 34 m-antenna in Kashima Space Research Center, through large capacity (2 Gbps) optical fiber nets and; a real time experiment on VLBI was conducted. The result finds success in materializing the real time VLBI at the 1Gbps band between a 64 m-antenna and the 34 m-antenna in Kashima. This is a technique useful for observation at 1 Gbps aiming at the next generation space VLBI system. In addition, the use of the optical lines applied to semi -real time correlation processing for the VLBI observation for deciding a satellite orbit.
Keywords (4):
VLBI ,  radio wave interference ,  optical fiber network ,  real time observation
Project Organization (1):
  • (A089001000)
Research program: Ordinary Research
Ministry with control over the research :
Ministry of Education, Culture, Sports, Science and Technology

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