Читать книгу Global Navigation Satellite Systems, Inertial Navigation, and Integration - Mohinder S. Grewal - Страница 29

Galileo will provide 10 right‐hand circularly polarized navigation signals in three frequency bands. The various Galileo navigation signals will use four different navigation (NAV) data formats to support the various service supported by Galileo: F/NAV (Free NAV), I/NAV (Integrity NAV), C/NAV, and G/NAV (Galileo NAV). The I/NAV signals contain integrity information, while the F/NAV signals do not. The C/NAV signals are used by the CS, and the G/NAV signals are used by the PRS.