Abstract
We describe developments in a radio frequency interference (RFI) detection instrument dubbed RATTY 2. With uncertain RFI environments in mind, the system is hardware and software reconfigurable, functioning either as a spectrometer or a transient-signal analyser. RATTY 2 is equipped with a 900 MHz bandwidth, 10-bit, non-interleaved analogue-digital converter (ADC) and the data is processed on a Reconfigurable Open Architecture Computer Hardware 2 (ROACH) platform. A computer is used for post-processing dynamically-stored data. Two different strategies were followed in designing the RF front-end systems for signal conditioning prior to digitisation: 1) a single mixer, down-converting topology, and 2) a multiple Nyquist-zone sampling configuration. The two systems are evaluated and compared in this paper. © 2013 IEEE.
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CITATION STYLE
Botha, A. R., Reader, H. C., Manley, J., Malan, S., Kriel, H. K., Van Der Merwe, P. S., … Anderson, R. J. (2013). Dynamic RFI measurement systems on a ROACH-2 platform ICEAA-IEEE APWC-EMS. In Proceedings of the 2013 International Conference on Electromagnetics in Advanced Applications, ICEAA 2013 (pp. 502–505). https://doi.org/10.1109/ICEAA.2013.6632287
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