Development and Performance of the Real-Time VLBI Correlator (RVC)
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概要
- 論文の詳細を見る
The Real-time VLBI Correlator (RVC) is a new type processor for the Very-Long-Baseline Interferometry (VLBI). This correlator was primarily designed for supporting the VLBI Space Observatory Programme (VSOP). Two particular techniques, the fringe rotator after correlation and the lag-time extension technique, are newly developed for the RVC. The correlation circuit size of VLBI correlator is reduced to half by introducing the new fringe rotator, and it makes possibly to realize a large delay window being essential in finding a cross correlation in real-time. The delay window can be changed flexibly with the lag-time extension technique, and its technique is useful to detect the fringe peak in a VSOP observation. The new correlator was installed at the Usuda Deep Space Center in Japan, and is used in VSOP and other domestic VLBI observations. In this paper, the key features of the Real-time VLBI Correlator (RVC) focusing on these advanced techniques are presented, and the results of its performance test are shown.
- 2000-11-25
著者
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MURATA Yasuhiro
Institute of Space and Astronautical Science
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MURATA Yasuhiro
The Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency
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FUJISAWA Kenta
Department of Physics, Faculty of Science, Yamaguchi University
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FUJISAWA Kenta
National Astronomical Observatory
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KOBAYASHI Hideyuki
Institute of Applied Biochemistry, University of Tsukuba
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川口 則行
国立天文台
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KAWAGUCHI Noriyuki
National Astronomical Observatry of Japan
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Iguchi S
National Astronomical Observatory
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Kawano Nobuyuki
National Astronomical Observatory Of Japan Iwate Jpn
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Kawaguchi Noriyuki
National Astronomical Observatory
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Murata Yasuhiro
Institute Of Space And Astronautical Science Japan Aerospace Exploration Agency
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IGUCHI Satoru
the Department of Electronic Engineering, The University of Electro-Communications
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Miki Tetsuya
The Department Of Information And Communication Engineering The University Of Electro-communications
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Kobayashi Hideyuki
Institute Of Applied Biochemistry The University Of Tsukuba
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Miki Tetsuya
The Department Of Electronic Engineering The University Of Electro-communications
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Miki Tetsuya
The Department Of Electronic Engineering The University Of Electro Communications
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Murata Yasuhiro
The Institute Of Space And Astronautical Science
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KAWAGUCHI Noriyuki
National Astoronomical Observatory of Japan
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