Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002spie.4845...35h&link_type=abstract
Advanced Global Communications Technologies for Astronomy II. Edited by Kibrick, Robert I. Proceedings of the SPIE, Volume 4845
Astronomy and Astrophysics
Astronomy
Scientific paper
At present, the signals received by the 10 antennas of the Very Long Baseline Array (VLBA) are recorded on instrumentation tapes. These tapes are then shipped from the antenna locations - distributed across the mainland USA, the US Virgin Islands, and Hawaii - to the processing center in Socorro, New Mexico. The Array operates today at a mean sustained data rate of 128 Mbps per antenna, but peak rates of 256 Mbps and 512 Mbps are also used. Transported tapes provide the cheapest method of attaining these bit rates. The present tape system derives from wideband recording techniques dating back to the late 1960s, and has been in use since the commissioning of the VLBA in 1993. It is in need of replacement on a time scale of a few years. Further, plans are being developed which would increase the required data rates to 1 Gbps in 5 years and 100 Gbps in 10 years. With the advent of higher performance networks, it should be possible to transmit the data directly to the processing center. However, achieving this connectivity is complicated by the remoteness of the antennas -
Hunt Gareth
Romney Jonathan D.
Walker Robert Craig
No associations
LandOfFree
Directly connecting the Very Long Baseline Array does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Directly connecting the Very Long Baseline Array, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Directly connecting the Very Long Baseline Array will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1194248