THE VERY LONG-BASE-LINE ARRAY

被引:150
作者
NAPIER, PJ
BAGRI, DS
CLARK, BG
ROGERS, AEE
ROMNEY, JD
THOMPSON, AR
WALKER, RC
机构
[1] MIT,HAYSTACK OBSERV,WESTFORD,MA 01886
[2] NRAO,CHARLOTTESVILLE,VA 22903
基金
美国国家科学基金会;
关键词
D O I
10.1109/5.284733
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The Very Long Baseline Array (VLBA) consists of ten high-performance antennas and a 20-station correlator. The 25-m-diameter reflector antennas are located geographically to optimize spatial frequency coverage for high-quality imaging using VLBI techniques. The antennas are equipped with receivers for nine frequency bands over the range 300 MHz to 45 GHz. A wideband, high-density, recording system allows unattended operation at a sustained data rate of 128 Mb/s for a day, and peak rates of up to 512 Mb/s. The antennas operate unattended most of the time, and are controlled by a single operator in the Array Operations Center (AOC) at Socorro, NM. The correlator, located in the AOC, supports processing of all observations with the array.
引用
收藏
页码:658 / 672
页数:15
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