GBAS/SCAT-I Mode (Options R&S
EVSG-K4/-K5)
R&S
®
EVSG1000
171
User Manual 1178.6227.02 ─ 06
6.1
Basics on GBAS and SCAT-I Analysis
The following topics summarize some background information on the GBAS and other
avionics-related standards. The provided overview information is intended as an
explanation of the used terms and does not aim to be comprehensive.
...................................................................................173
Final Approach Segment (FAS) Construction Data
...............................................173
Time Slot Synchronization via PPS
.......................................................................174
6.1.1
GBAS Specifics
GBAS is a ground based augmentation system that can enhance satellite navigation.
The GBAS is intended to improve aircraft safety and to enhance satellite navigation
and the full range of precision approach and landing procedures, as well as the termi-
nal area operations.
GBAS components
The illustration in
is a simplified representation of the GBAS' three main
components:
●
the GNSS satellite subsystem
●
the airborne subsystem
●
the GBAS ground subsystem.
The ground equipment consists of four reference GNSS receivers at exactly defined
positions around the airport, GBAS ground station, and a VHF data broadcast transmit-
ter (VDB).
Basics on GBAS and SCAT-I Analysis