Abstract
A methodology has been developed to construct SBAS ionospheric grid based on the data from ionosphere radio occultation monitoring systems such as COSMIC. This methodology facilitates calculation of vertical delay of GNSS signals on frequency L1 for any geographical location. The corrections are used by a single-frequency receiver for improving the accuracy of position estimation in solving the navigation problem. Using the combination of ionosphere model and the data from radio occultation monitoring systems, it is possible to form real-time corrections on a global scale, and to make their short-term forecasts. The proposed method testing results showed good conformance with the data from vertical sounding stations, and the magnitudes of vertical delays of signal on frequency L1, represented by EGNOS system as differential corrections.
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Aleshkin, A.P., Myslivtsev, T.O., Nikiforov, S.V. et al. Calculation of Navigation Corrections for a Single-Frequency GNSS Receiver Based on Satellite Radio Occultation Data. Gyroscopy Navig. 10, 15–20 (2019). https://doi.org/10.1134/S2075108719010024
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DOI: https://doi.org/10.1134/S2075108719010024