Performance Analysis of a VDFLL GNSS Receiver Architecture Under Ionospheric Scintillation and Multipath Conditions

F.M.G. Sousa and F.D. Nunes

Abstract: A noncoherent vector delay/frequency-locked loop (VDFLL) architecture for GNSS receivers is proposed. A bank of code and frequency discriminators feeds a central extended Kalman filter that estimates the receiver’s position and velocity, besides the clock error. The VDFLL architecture performance is compared with the one of the classic scalar receiver, both for scintillation and multipath scenarios, in terms of position errors. We show that the proposed solution is superior to the conventional scalar receivers, which tend to lose lock rapidly, due to the sudden drops of the received signal power.
Published in: Proceedings of IEEE/ION PLANS 2014
May 5 - 8, 2014
Hyatt Regency Hotel
Monterey, CA
Pages: 602 - 611
Cite this article: Sousa, F.M.G., Nunes, F.D., "Performance Analysis of a VDFLL GNSS Receiver Architecture Under Ionospheric Scintillation and Multipath Conditions," Proceedings of IEEE/ION PLANS 2014, Monterey, CA, May 2014, pp. 602-611.
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