Effects of Jamming on the Accuracy of GPS Position Solutions in an Experimental Set-up

Patrick Oonincx, Barend Lubbers

Abstract:	Deliberate jamming of Global Navigation Satellite Systems (GNSS) is becoming more and more a problem in both Navigation Warfare and civilian use of the system. For a better understanding of the effects of a jammer on a GPS receiver we conducted an experiment including a low-cost GPS receiver. This paper discusses the results of this experimental study in which we investigated the influence of radio frequency interference on positioning using a low-cost GPS receiver. The study has been performed with an experimental set-up where a jammer influences a software defined receiver at several distances in an open field. Post-processing the measurements showed that for certain distances the receiver was unable to receive the signals of some satellites with the jammer active. As a result the 95% confidence ellipses enlarged in these situations. Furthermore it was observed that size of the confidence regions depend heavily on the geometry of the satellites, whose signals could be received in the measurements. Results on the pseudorange errors for several jammer to receiver distances are also included in the paper.
Published in:	Proceedings of the 29th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2016) September 12 - 16, 2016 Oregon Convention Center Portland, Oregon
Pages:	217 - 222
Cite this article:	Oonincx, Patrick, Lubbers, Barend, "Effects of Jamming on the Accuracy of GPS Position Solutions in an Experimental Set-up," Proceedings of the 29th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2016), Portland, Oregon, September 2016, pp. 217-222. https://doi.org/10.33012/2016.14746
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