Adaption of the VLBI Standard Interface to the K5 VLBI System

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  • Koyama Yasuhiro
    National Institute of Information and Communications Technology
  • Kondo Tetsuro
    National Institute of Information and Communications Technology Ajou University, Department of Space Survey & Information Engineering
  • Sekido Mamoru
    National Institute of Information and Communications Technology, Kashima Space Research Center
  • Nakajima Junichi
    National Institute of Information and Communications Technology, Yokosuka Research Laboratories
  • Kimura Moritaka
    National Institute of Information and Communications Technology, Kashima Space Research Center
  • Takeuchi Hiroshi
    Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science

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Other Title
  • K5VLBIシステムにおけるVLBI標準インターフェース対応への取り組み

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The development of the K5 VLBI (very lo ng baseline interferometry) system began in 1999. One of the purposes for developing the K5 VLBI system was to realize real-time VLBI observation and correlation processing to be performed under different settings and modes according to the characteristics of the observing sessions. To realize this purpose, diverse component systems were developed to allow the flexible combination of these components. The specifications of the VLBI Standard Interface (VSI), on the other hand, were discussed and designed within the international VLBI community to allow easy interconnectivity between multiple components for VLBI observations and correlation processing developed independently by different institutions. Through the hardware specifications of VSI (VSI-H), both electrical and physical properties of the interface have been defined and standardized. By applying the defined specifications, differently designed VLBI systems can be expected to easily connect and work together. In this paper, we report our efforts to adapt VSI-H specifications into the design of the K5 VLBI system.

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