LightSquared Interference on GNSS Signals: A Theoretical Assessment

D. Fontanella, M. Paonni, B. Eissfeller

Abstract:	Recently the potential interference of LightSquared (LSQ) signals on the GNSS services in L1 band has become a topic of big discussion within the navigation community. In 2011, the Federal Communications Commission established a Technical Working Group with a broad number of participants dedicated to examining this compatibility issue. Part of the extensive analyses performed is documented in [1] and [2]; the investigation is however still open and further results will be soon available. This work aims to theoretically assess the influence of the planned LSQ signals on the GNSS signals’ performance in L1 band. The first part of the paper focuses on the characterization of the LSQ signal and the terrestrial network. Then the assumptions related to the GNSS receiver are presented. Finally the degradation of the carrier-to-noise density ratio and the code tracking error are shown for the selected GNSS signals as a function of the distance from the LSQ signal transmitter.
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:	801 - 811
Cite this article:	Fontanella, D., Paonni, M., Eissfeller, B., "LightSquared Interference on GNSS Signals: A Theoretical Assessment," Proceedings of the 2012 International Technical Meeting of The Institute of Navigation, Newport Beach, CA, January 2012, pp. 801-811.
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