1 research outputs found
Multi-Frequency Kalman Filtering for Joint Ionospheric Delay and Multipath Mitigation
This paper tackles the problem of robust Global
Navigation Satellite System (GNSS) ranging in the presence
of ionospheric activity and multipath signals. We
introduce a novel algorithm that fuses the incoming signals
from different frequency bands and is able to separate
the purely geometry dependent code phase delay from the
ionosphere induced signal delay. Additionally, it performs
simultaneous channel estimation and equalization of multipath
signals. The proposed algorithm appears to be able
to provide an unbiased code phase estimation with the
estimation variance of the best from the signals used