Advanced GNSS Integrity using Signals of Opportunity

Michael A. Enright

Abstract:	With mobile users ever increasing reliance on Global Navigation Satellite Systems (GNSS), the integrity and robustness of the position has becomes even more critical. The Global Positioning System (GPS), for example, has inherent challenges in maintaining acceptable performance due to low received signal power in environments that are susceptible to multipath, shadow fading, intentional/unintentional interference, spoofing, etc. To counter these effects and provide for GNSS integrity while also providing the ability to navigate in the absence of GNSS, we present a novel solution that utilizes a broader signal set, both communication and navigation based. By using signals high-power commercial cellular signals such as Wideband Code Division Multiple Access (WCDMA) and Long Term Evolution (LTE) in combination with broadcast signals such as digital television (DTV), termed signals of opportunity (SoOP), it is possible to provide a much more robust navigation capability.
Published in:	Proceedings of the 2012 International Technical Meeting of The Institute of Navigation January 30 - 1, 2012 Marriott Newport Beach Hotel & Spa Newport Beach, CA
Pages:	83 - 89
Cite this article:	Enright, Michael A., "Advanced GNSS Integrity using Signals of Opportunity," Proceedings of the 2012 International Technical Meeting of The Institute of Navigation, Newport Beach, CA, January 2012, pp. 83-89.
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