Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001exa....11...57n&link_type=abstract
Experimental Astronomy, v. 11, Issue 1, p. 57-69 (2001).
Astronomy and Astrophysics
Astronomy
3
Fringe Detection, High Sensitivity, Quasar, Vlbi
Scientific paper
We report on the detection of VLBI fringes from quasars by a new VLBI system operating at 1 Gbps (1024 Mbits-per-second). Newly developed 1024 Msps (mega sample-per-second) AD samplers and 1024 Mbps recorders were used for the observations. A correlator with external buffers was used for the 1024 Mbps correlation processing of the tapes data. Our new VLBI system enabled 1024 Mbps VLBI, and this allowed the sampling of a 512 MHz bandwidth from a radio telescope receiver. This is the highest sampling speed ever used for VLBI, and the widest bandwidth used for VLBI observation. Initial sensitivity as evaluated by SNR comparison with earlier VLBI systems produced results to matched the expanded bandwidth. In our first observations, simultaneous optical fibre linked real-time VLBI observations were made to check the validity of data and precisely detemine the clock offsets among the radio telescopes.
Kawaguchi Noriyuki
Kimura Masahiro
Kondo Toshiaki
Koyama Yusei
Kurihara Noriyuki
No associations
LandOfFree
1-Gbps VLBI, The First Detection of Fringes 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 1-Gbps VLBI, The First Detection of Fringes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 1-Gbps VLBI, The First Detection of Fringes will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1211249