IEICE TRANSACTIONS on Communications
An IP Based Realtime VLBI Observation Testbed with Multiple STM-16c Links
Summary :
This paper presents a realization of our IP based realtime VLBI (Very Long Baseline Interferometer) observation testbed with the highest sensitivity in the world. Today's rapid deployment of high-speed wide area networks will give a major breakthrough in VLBI astronomy in terms of its observational sensitivity and immediateness. VLBI requires huge amount of data transfer from several radio telescopes located separately each other for calculating cross-correlation. High-speed networks can be applied to such data transfer instead of conventional magnetical tape recording and physical transportation, which cause a serious performance bottleneck. We have newly designed and implemented a special component named gigabit network access node, which can exchange 2.048 Gbps telescope data through a 2.488 Gbps OC-48c/STM-16c SONET/SDH link. We have also constructed the world's first multi-gigabit-rate VLBI observation testbed using actual high-speed wide area optical networks and successfully conducted several real observations.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E87-B No.3 pp.651-659
- Publication Date
- 2004/03/01
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- Special Section PAPER (Special Section on Internet Technology IV)
- Category
- New Applications
Authors
Teruyuki HASEGAWA
Toru HASEGAWA
Noriyuki KAWAGUCHI
Kenta FUJISAWA
Kazuhiro TAKASHIMA
Hisao UOSE
Shoichiro ASANO
Keyword
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Teruyuki HASEGAWA, Toru HASEGAWA, Noriyuki KAWAGUCHI, Kenta FUJISAWA, Kazuhiro TAKASHIMA, Hisao UOSE, Shoichiro ASANO, "An IP Based Realtime VLBI Observation Testbed with Multiple STM-16c Links" in IEICE TRANSACTIONS on Communications,
vol. E87-B, no. 3, pp. 651-659, March 2004, doi: .
Abstract: This paper presents a realization of our IP based realtime VLBI (Very Long Baseline Interferometer) observation testbed with the highest sensitivity in the world. Today's rapid deployment of high-speed wide area networks will give a major breakthrough in VLBI astronomy in terms of its observational sensitivity and immediateness. VLBI requires huge amount of data transfer from several radio telescopes located separately each other for calculating cross-correlation. High-speed networks can be applied to such data transfer instead of conventional magnetical tape recording and physical transportation, which cause a serious performance bottleneck. We have newly designed and implemented a special component named gigabit network access node, which can exchange 2.048 Gbps telescope data through a 2.488 Gbps OC-48c/STM-16c SONET/SDH link. We have also constructed the world's first multi-gigabit-rate VLBI observation testbed using actual high-speed wide area optical networks and successfully conducted several real observations.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e87-b_3_651/_p
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@ARTICLE{e87-b_3_651,
author={Teruyuki HASEGAWA, Toru HASEGAWA, Noriyuki KAWAGUCHI, Kenta FUJISAWA, Kazuhiro TAKASHIMA, Hisao UOSE, Shoichiro ASANO, },
journal={IEICE TRANSACTIONS on Communications},
title={An IP Based Realtime VLBI Observation Testbed with Multiple STM-16c Links},
year={2004},
volume={E87-B},
number={3},
pages={651-659},
abstract={This paper presents a realization of our IP based realtime VLBI (Very Long Baseline Interferometer) observation testbed with the highest sensitivity in the world. Today's rapid deployment of high-speed wide area networks will give a major breakthrough in VLBI astronomy in terms of its observational sensitivity and immediateness. VLBI requires huge amount of data transfer from several radio telescopes located separately each other for calculating cross-correlation. High-speed networks can be applied to such data transfer instead of conventional magnetical tape recording and physical transportation, which cause a serious performance bottleneck. We have newly designed and implemented a special component named gigabit network access node, which can exchange 2.048 Gbps telescope data through a 2.488 Gbps OC-48c/STM-16c SONET/SDH link. We have also constructed the world's first multi-gigabit-rate VLBI observation testbed using actual high-speed wide area optical networks and successfully conducted several real observations.},
keywords={},
doi={},
ISSN={},
month={March},}
Copy
TY - JOUR
TI - An IP Based Realtime VLBI Observation Testbed with Multiple STM-16c Links
T2 - IEICE TRANSACTIONS on Communications
SP - 651
EP - 659
AU - Teruyuki HASEGAWA
AU - Toru HASEGAWA
AU - Noriyuki KAWAGUCHI
AU - Kenta FUJISAWA
AU - Kazuhiro TAKASHIMA
AU - Hisao UOSE
AU - Shoichiro ASANO
PY - 2004
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E87-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2004
AB - This paper presents a realization of our IP based realtime VLBI (Very Long Baseline Interferometer) observation testbed with the highest sensitivity in the world. Today's rapid deployment of high-speed wide area networks will give a major breakthrough in VLBI astronomy in terms of its observational sensitivity and immediateness. VLBI requires huge amount of data transfer from several radio telescopes located separately each other for calculating cross-correlation. High-speed networks can be applied to such data transfer instead of conventional magnetical tape recording and physical transportation, which cause a serious performance bottleneck. We have newly designed and implemented a special component named gigabit network access node, which can exchange 2.048 Gbps telescope data through a 2.488 Gbps OC-48c/STM-16c SONET/SDH link. We have also constructed the world's first multi-gigabit-rate VLBI observation testbed using actual high-speed wide area optical networks and successfully conducted several real observations.
ER -
English
