Antenna Array Characterization via Radio Interferometry Observation of Astronomical Sources

被引:0
|
作者
Colegate, T. M. [1 ]
Sutinjo, A. T. [1 ]
Hall, P. J. [1 ]
Padhi, S. K. [1 ]
Wayth, R. B. [1 ]
de Vaate, J. G. Bij [2 ]
Crosse, B. [1 ]
Emrich, D. [1 ]
Faulkner, A. J. [3 ]
Hurley-Walker, N. [1 ]
Acedo, E. de Lera [3 ]
Juswardy, B. [1 ]
Razavi-Ghods, N. [3 ]
Tingay, S. J. [1 ]
Williams, A. [1 ]
机构
[1] Curtin Univ, Int Ctr Radio Astron Res ICRAR, Perth, WA 6845, Australia
[2] Netherlands Inst Radio Astron, ASTRON, NL-7990 AA Dwingeloo, Netherlands
[3] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
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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
We present an in-situ antenna characterization method and results for a "low-frequency" radio astronomy engineering prototype array, characterized over the 75-300MHz frequency range. The presence of multiple cosmic radio sources, particularly the dominant Galactic noise, makes in-situ characterization at these frequencies challenging; however, it will be shown that high quality measurement is possible via radio interferometry techniques. This method is well-known in the radio astronomy community but seems less so in antenna measurement and wireless communications communities, although the measurement challenges involving multiple undesired sources in the antenna field-of-view bear some similarities. We discuss this approach and our results with the expectation that this principle may find greater application in related fields.
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页数:4
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