Antenna array characterization via radio interferometry observation of astronomical sources
| Autor: | Colegate, T. M., Sutinjo, A. T., Hall, P. J., Padhi, S. K., Wayth, R. B., de Vaate, J. G. Bij, Crosse, B., Emrich, D., Faulkner, A. J., Hurley-Walker, N., Acedo, E. de Lera, Juswardy, B., Razavi-Ghods, N., Tingay, S. J., Williams, A. |
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| Rok vydání: | 2015 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1109/CAMA.2014.7003436 |
| Popis: | We present an in-situ antenna characterization method and results for a "low-frequency" radio astronomy engineering prototype array, characterized over the 75-300 MHz 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. Comment: 4 pages, 6 figures; 2014 IEEE Conference on Antenna Measurements & Applications (CAMA), 16-19 Nov. 2014, pp.1-4 |
| Databáze: | arXiv |
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