engleski

Signal Path Geometries for Ionospheric Corrections in Single-Frequency Space-Borne GNSS Receivers

Even though the satellites in orbits of different heights are tracked from Earth, for many applications there is a need for precise satellite positioning or timing and therefore, such satellites carry Global Navigation Satellite Systems (GNSS) receivers. Many of those are single-frequency receivers. Signals from the main and side lobes of GNSS satellites, arriving to a satellite-borne receiver from different directions, are used to calculate the position and time. To compensate for the ionospheric error, ionospheric models integrated within GNSS, intended for use on Earth, cannot be applied without modifications. For each GNSS signal arriving to the space-borne receiver, the cross-section of the path within the ionosphere must be determined, and the resulting ionospheric error compensated.

Corrections, GNSS, Ionosphere, Orbit, Single-Frequency

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