Tag Archives: Galileo Navigation Message

Galileo Navigation Message is the data transmitted by the Galileo satellites

Galileo Signal Polarization

Polarization is a property of electromagnetic waves that can oscillate with more than one orientation. By convention, the orientation of the wave’s electric field at a point in space over one period of the oscillation specifies its orientation.

The magnitude and direction of an electric field is defined by what is called an electric field vector. The Galileo transmitted signals are Right-Hand Circularly Polarized (RHCP), which means that the electric field vectors have a constant magnitude but the direction changes in a rotary manner. If the wave is frozen in time, the electric field vector of the wave describes a helix along the direction of propagation. Read more…

Galileo Frequency bands

The Galileo Navigation Signals are transmitted in four frequency bands (E5a, E5b, E6 and E1) providing a wide bandwith for the transmission of the Galileo signals.

The Galileo frequency bands have been selected in the allocated spectrum for Radio Navigation Satellite Services (RNSS) and in addition to that, E5a, E5b and E1 bands are included in the allocated spectrum for Aeronautical Radio Navigation Services (ARNS), employed by Civil-Aviation users, and allowing dedicated safety-critical applications. Read more…