GPS Flashcards

1
Q

3 Components of GPS?

A
  1. Space: Satellites (24 total) (6 orbital phases)
  2. Control: Ground stations, master control station, monitoring stations
  3. User: G1000, iPhone
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2
Q

How does GPS work

A

Pseudoranging:
Distance and Time (Beam sends out to the plane, then back to us) (THINK DME) (1-2 satellites)

Trilateration:
-3 or more satellites give us a 2D position of where we are
-4 or more satellites give us 3D position of where we are (altitude)

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3
Q

What is RAIM & Main Functions??

A

Receiver Autonomous Integrity Monitoring

2 Main Functions
1Baroult Detection (5 sattelites) (4 sats)
2. Fault Detection & Exclusion (6 sattelites) (5 sats)

*Baro aiding capability, brings these satellite requirements down one (us)

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4
Q
A
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