With the current data availability from both ground‐and space‐based sources, the network of
ground‐based Global Positioning System (GPS) receivers, GPS occultation receivers, in situ …

In an era of significant air traffic expansion characterized by a rising congestion of the
radiofrequency spectrum and a widespread introduction of Unmanned Aircraft Systems …

In order to better understand the differential code biases (DCBs) of global navigation
satellite system, the IGGDCB method is extended to estimate the intra-and inter-frequency …

In the context of the International GNSS Service (IGS), several IGS Ionosphere Associated
Analysis Centers have developed different techniques to provide global ionospheric maps …

A worldwide network of receivers tracking the transmissions of Global Positioning System
(GPS) satellites represents a new source of ionospheric data that is globally distributed and …

Since 1 June 1998, the group of Astronomy and Geomatics of the Polytechnic University of
Catalonia (gAGE/UPC) is contributing to the international project of defining an ionospheric …

The main goal of this paper is to provide a summary of our current knowledge of the
ionosphere as it relates to space geodetic techniques, especially the most informative …

Benefiting from global multi-frequency and multi-constellation GNSS measurements
provided by the experimental International GNSS real-time service (IGS RTS), a predicting …

“SuomiNet,” a university-based, real-time, national Global Positioning System (GPS)
network, is being developed for atmospheric research and education with funding from the …

Abstract As a new Ionosphere Associate Analysis Center (IAAC) of the International GNSS
Service (IGS), Chinese Academy of Sciences (CAS) started the routine computation of the …