sources of gps errorper satellite

• Satellite clock drift (1.5 m) (1usec = 300m)

• Orbit estimation errors (2.5 m)

• Atmospheric and relativistic effects (5.5 m)

• Receiver noise (0.3 m)

• Multipath interference (0.6 m)

• Intentional randomization to reduce civilian grade accuracy (30m)

http://www.trimble.com/gps/howgps/gpsfram2.htm

Previous slide

Next slide

Back to first slide

View graphic version