Installation and configuration of an Ionospheric Scintillation Monitoring Station based on GNSS receivers in Antarctica ...

• Main Authors: Linty, Nicola, Hunstad, Ingrid
• Format: Text
• Language: English
• Published: Istituto Nazionale di Geofisica e Vulcanologia (INGV) 2016
• Subjects: Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.13127/rpt/354; https://editoria.ingv.it/rapporti/2016/rapporto354/

Global Navigation Satellite Systems (GNSSs), such as the US Global Positioning System (GPS), The Russian GLONASS or the European Galileo, are space-based navigation systems. GNSSs enable a generic user located anywhere on the Earth to determine in real time his Position, Velocity and Time (PVT), by means of a Radio Frequency (RF) electro-magnetic signal, the Signal-In-Space (SIS), transmitted by a constellation of satellites orbiting around Earth. Uninterrupted Positioning, Navigation, and Timing (PNT) solution is determined by GNSS receivers, which continuously process the SIS from the satellites in view. GNSS receivers are part of the GNSSs ground segment. They are a suboptimal implementation of a maximum likelihood estimator of the SIS propagation time. The PNT solution is indeed based on the computation of the SIS Time Of Arrival (TOA), according to the satellite and receiver local clocks. This is achieved thanks to the presence of a different Pseudo Random Noise (PRN) spreading code in the modulated SIS ...