On the application of the raw-observation-based PPP to global ionosphere VTEC modeling: an advantage demonstration in the multi-frequency and multi-GNSS context

Ionospheric Time-Delay Algorithm for Single-Frequency GPS Users

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Satellite Network, Geostationary Orbit, Engineering +15

A global mapping technique for GPS‐derived ionospheric total electron content measurements

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Geophysics, Thin Spherical Shell, Geospace Physics +15

The IGS VTEC maps: a reliable source of ionospheric information since 1998

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Geophysics, Engineering, Ionospheric Information +5

Mapping and predicting the Earth's ionosphere using the Global Positioning System.

Stefan Schaer · 1999 · 863 citations

Geophysics, Data Assimilation, Engineering +7

The Multi-GNSS Experiment (MGEX) of the International GNSS Service (IGS) – Achievements, prospects and challenges

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Engineering, Global Navigation Satellite System, International Gnss Service +7