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Advisor(s)
Abstract(s)
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.
Description
Keywords
Kalman Filters Delay Lock Loops Discriminators Frequency Locked Loops Ionospheric Electromagnetic Wave Propagation Nonlinear Filters Radio Receivers Radiowave Propagation Satellite Navigation
Citation
Publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.