The Australia Telescope Long Baseline Array
نویسندگان
چکیده
منابع مشابه
A Wideband Upgrade for the Australia Telescope Compact Array
The maximum signal bandwidth on the Australia Telescope Compact Array (ATCA) is to expand from 128MHz to 2GHz. Central to this development is a Field Programmable Gate Array (FPGA)-based digital filterbank correlator featuring high dynamic range and flexible configuration. Associated analog to digital conversion requirements will push the limits of high-speed sampling and quantisation technique...
متن کاملThe Use of the Long Baseline Array in Australia for Precise Geodesy and Absolute Astrometry
We report the results of a successful 12 hour 22 GHz VLBI experiment using a heterogeneous network that includes radio telescopes of the Long Baseline Array (LBA) in Australia and several VLBI stations that regularly observe in geodetic VLBI campaigns. We have determined positions of three VLBI stations, atca-104, ceduna and mopra, with an accuracy of 4–30 mm using a novel technique of data ana...
متن کاملThe Karoo Array Telescope
The Karoo Array Telescope (KAT) will be a “1% demonstrator” for the SKA, located in a radio quiet reserve in the Karoo region of the Northern Cape province of South Africa. Besides developing technologies for the SKA project, the KAT will perform wide-field surveys that will be precursors to the eventual SKA products. The nominal specification for the KAT are listed, and the proposed science th...
متن کاملPrecise geodesy with the Very Long Baseline Array
We report on a program of geodetic measurements between 1994 and 2007 which used the Very Long Baseline Array and up to 10 globally distributed antennas. One of the goals of this program was to monitor positions of the array at a 1 millimeter level of accuracy and to tie the VLBA into the International Terrestrial Reference Frame. We describe the analysis of these data and report several intere...
متن کاملThe Australia Telescope Compact Array Broadband Backend (CABB): Description & First Results
Here we describe the Compact Array Broadband Backend (CABB) and present first results obtained with the upgraded Australia Telescope Compact Array (ATCA). The 16-fold increase in observing bandwidth, from 2× 128 MHz to 2× 2048 MHz, high bit sampling, and addition of 16 zoom windows (each divided into a further 2048 channels) provide major improvements for all ATCA observations. The benefits of ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1988
ISSN: 0074-1809
DOI: 10.1017/s007418090013534x