Pushing the Boundary of GNSS Inertial Systems into Interference and Jammed Environments

G. Gao, M. Bobye

Abstract:	Methods for mitigating the effects of harsh GNSS environments generally take two different approaches. The first approach is from the navigation side by utilizing complimenting technologies, such as GNSS/INS integration. With a tightly coupled architecture, such as that used by NovAtel’s SPAN® technology, a receiver can typically acquire and track signals more quickly than standalone GNSS receivers. The second approach is to use enhanced signal processing of the raw GNSS signals similar to the GAJT™ anti-jam technology developed by NovAtel. The integration of SPAN and GAJT is novel in that it provides a robust solution for users who require both high signal tracking sensitivity and high precision positioning capabilities within GNSS denied/compromised environments. This paper also describes how the enhanced hybrid system allows for the possibility to do RTK and other high precision applications. Test results that illustrate the hybrid system performance are presented.
Published in:	Proceedings of the ION 2013 Pacific PNT Meeting April 23 - 25, 2013 Marriott Waikiki Beach Resort & Spa Honolulu, Hawaii
Pages:	411 - 418
Cite this article:	Gao, G., Bobye, M., "Pushing the Boundary of GNSS Inertial Systems into Interference and Jammed Environments," Proceedings of the ION 2013 Pacific PNT Meeting, Honolulu, Hawaii, April 2013, pp. 411-418.
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