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Talk Abstract
Real Time GPS Absolute Positioning Errors

James R. Clynch
Department of Oceanography
Naval Postgraduate School
Monterey, Ca 94934

The overall GPS error budget for absolute (Standalone) positioning will be reviewed. Now that the effects of Selective Availability have been removed, the characteristics of the remaining errors can be more clearly seen. Particular emphasis will be placed on the errors in the Broadcast Ephemeris. The error the user sees from this source are not statistically nice. They have several major components, and change discontinuously when new data is broadcast. The generation procedure will be shown as well as the resulting errors.


Back to Mathematical Challenges in Global Positioning Systems (GPS)

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