By Jari Nurmi, Elena Simona Lohan, Stephan Sand, Heikki Hurskainen
This e-book covers multi-band Galileo receivers (especially E1-E5 bands of Galileo) and addresses all receiver development blocks, from the antenna and entrance finish, via information of the baseband receiver processing blocks, as much as the navigation processing, together with the Galileo message constitution and place, speed, Time (PVT) computation. furthermore, hybridization ideas with communications structures for stronger localization are mentioned and an open-source GNSS receiver platform (available for obtain) built at Tampere college of expertise (TUT) is addressed in detail.
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Additional info for GALILEO Positioning Technology
S. Lohan (&) Á H. Hurskainen Á J. ﬁ © Springer Science+Business Media Dordrecht 2015 J. Nurmi et al. S. Lohan et al. Fig. 1 Single-link model: wave propagation from a single satellite to the GALILEO receiver through a wireless channel including multipath the information needed by the receiver to compute its ﬁnal position, velocity and time (more about the later in Chap. 7). , the interference due to the presence of the other signals in the frequency band of interest, is lumped into the noise term and it is not addressed separately.
Speciﬁc references dealing with near-far effects in the context of GNSS are for example (Morton et al. 2007; Nunes and Sousa 2012). As we have mentioned multipaths, an illustration of LOS and NLOS scenarios is shown in Fig. 2. The left-hand plot has a direct path between the transmitter and the receiver (LOS component) and it may have also one or several delayed paths (the multipaths). The NLOS scenario refers to the situation when the direct Line of Sight is absent and only the multipath signals reach the receiver.
Bartolomé et al. The Constellation Ground Control Centres The GCCs host all centralised functions of the GCS, including spacecraft Constellation Monitoring & Control, spacecraft Constellation Planning, Flight Dynamics and Operations Preparation. The GCC implements as well the GCS network interface with external Galileo entities involved in the system operations such as the External Satellite Control Centers (ESCCs) and the In Orbit Test (IOT) station located at Redu, Belgium. The Telemetry, Tracking and Commanding Facility The GCS architecture comprises a worldwide network of Telemetry, Tracking and Control ground stations or facilities connected to the Galileo Control Centres.
GALILEO Positioning Technology by Jari Nurmi, Elena Simona Lohan, Stephan Sand, Heikki Hurskainen