Structure of Direct RF Sampling Receivers for GNSS Signals

다국어 초록 (Multilingual Abstract)

A direct RF sampling method refers to a technique that directly converts a passband signal to an intermediate band or a baseband without using a mixer. This method is less complicated than an existing RF receiver because a mixer is not used.
It uses digital processing after sampling, and thus can flexibly process signals in a number of bands using software. In this process, it is important to select an appropriate sampling frequency so that a number of signals can be converted to an intermediate band that is easy to process. In this study, going beyond previously studied direct RF sampling frequency selection methods, conditions that need to be additionally considered during receiver design were examined, and the structure of a direct RF sampling receiver that satisfies these conditions was suggested.

참고문헌 (Reference)

1 R.G. Vaughan, "The theory of bandpass sampling" Institute of Electrical & Electronics Engineers (IEEE) 39 (39): 1973-1984, 1991

2 W.H.W. Tuttlebee, "Software-defined radio: facets of a developing technology" Institute of Electrical & Electronics Engineers (IEEE) 6 (6): 38-44, 1999

3 Huang, Y., "Sampling Rate Determination for RF Integrated Front End of Multiple Satellite Navigation Systems" 1-4, 2010

4 Alonso, A., "SDR Direct- Sampling Device for Multistandard GNSS Signals" 256-259, 2008

5 Bin, H., "Reaching for the STARx: A Software-Defined All-GNSS Solution" GNSS Magazine 9 : 50-60, 2014

6 Barrak, R., "RF Subsampling GNSS Receiver: Potential Advantages and Feasibility Study" 1-6, 2011

7 D.M. Akos, "Direct bandpass sampling of multiple distinct RF signals" Institute of Electrical & Electronics Engineers (IEEE) 47 (47): 983-988, 1999