RAIM Flashcards
1
Q
What is RAIM?
A
Receiver Autonomous Integrity Monitoring
2
Q
How many satellites are required for an aircraft GPS position?
A
4
3
Q
How many satellites are needed for RAIM?
A
Preferably 6, minimum 5
4
Q
How does RAIM work?
A
RAIM is a fault detection software. With information from 6 satellites can eliminate the data from any faulty satellite. This will leave 5 Satellites and still RAIM capability
5
Q
What happens if RAIM removes 2 Satellites worth of data?
A
Then the GPS position of the aircraft is being calculated using 4 satellites and RAIM cannot be assured
6
Q
What happens if RAIM is unavailable?
A
GPS data recieved by aircraft cannot be assured
