IFR » Instruments and Nav Aids » Global Navigation Satellite System (GNSS/GPS)

56.28 Global Navigation Satellite System (GNSS/GPS)

56.28.2 Describe in basic terms the principal GNSS systems – GPS, Galileo, GLONASS and BeiDou.

56.28.4 Describe the three main segments of the GNSS (GPS) system.

56.28.6 Outline the elements of the control segment.

56.28.8 Describe the user segment, including the basic principle of satellite ranging.

56.28.10 Explain the principles of fixing position using the GNSS system; including:

(a) the number of satellites required for 2D and 3D fixing;

(b) the operation of RAIM;

(c) the number of satellites required for fault detection (FD) and for fault detection and exclusion (FDE); and

(d) barometric aiding.