1997•Annals of GeophysicsOpen access
Measurements of ionospheric TEC in the direction of GPS satellites and comparison with three ionospheric models
G. Mirenna, Federica Riguzzi, Enrico Zuccheretti
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Abstract
The IEN Galileo Ferraris uses GPS for time and frequency synchronization. To obtain high performance it is important to reduce the error due to the ionospheric time-delay in GPS measurements. Evaluations of TEC in the direction of GPS satellites, obtained from three different ionospheric models, have been compared with corresponding measurements by GPS signal.
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