GPS Anti-Spoofing Techniques for Smart Grid Applications

Matthew Trinkle, Zhenghao Zhang, Husheng Li, Aleksandar Dimitrovski

Abstract:	This paper proposes a simple anti-spoofing technique applicable to timing receivers in smart grid applications. The likelihood of spoofing at each timing receiver is determined based on the direction of arrival (DOA) of the GPS signals. If they all come from one direction a spoofer is deemed more likely. The DOA of the spoofer is determined from the power ratio of the GPS signals on two antennas with dissimilar radiation patterns. Experimental results for both a spoofed and non-spoofed scenario are presented to verify the technique. An overall framework that applies to a network of PMUs is also introduced which combinesGPS anti-spoofing techniques in the physical layer within each PMU with a trustworthiness framework in the signal processing layer. This allows evidences from both layers to be combined to improve the performance of anti-spoofing.
Published in:	Proceedings of the 25th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2012) September 17 - 21, 2012 Nashville Convention Center, Nashville, Tennessee Nashville, TN
Pages:	1270 - 1278
Cite this article:	Trinkle, Matthew, Zhang, Zhenghao, Li, Husheng, Dimitrovski, Aleksandar, "GPS Anti-Spoofing Techniques for Smart Grid Applications," Proceedings of the 25th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2012), Nashville, TN, September 2012, pp. 1270-1278.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In