This article describes the current status of the Deep Space Network advanced systems research into ionospheric calibration techniques, based on Global Positioning System (GPS) data. A GPS-based calibration system is planned to replace the currently used Faraday rotation method by 1989. The SERIES receiver system used in this research determines the differential group delay of signals transmitte...

With the appearance of such satellite systems as GPS, GLONASS, Galileo, and others, the total electron content TEC measured by means of navigational satellites became a key parameter characterizing a state of the ionized space. In turn, functioning of navigational and telecommunication systems needs models of TEC for an estimation of accuracy of positioning, for the short-term and long-term pre...

IONORING (IONOspheric RING) is a tool capable to provide the real-time monitoring and modeling of ionospheric Total Electron Content (TEC) over Italy, in latitudinal longitudinal ranges 35°N–48°N 5°E–20°E, respectively. exploits Global Navigation Satellite System (GNSS) data acquired by RING (Rete Integrata Nazionale GNSS) network, managed Istituto di Geofisica e Vulcanologia (INGV). The system...

Accurately predicting total electron content (TEC) during geomagnetic storms is still a challenging task for ionospheric models. In this work, neural-network (NN)-based model proposed which predicts relative TEC with respect to the preceding 27-day median TEC, storm time European region (with longitudes 30°W–50°E and latitudes 32.5°N–70°N). The (referred as TEC), latitude, longitude, universal ...