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Session A1: Augmentation Services, Integrity, and Authentication 1

Models for the Effect of Integrity Monitors on GNSS User Error Range Distributions
Juan Blanch, Yu-Fang Lai, Todd Walter, Stanford University and Pedro Silva, Hexagon
Date/Time: Wednesday, Sep. 18, 9:43 a.m.

We develop and evaluate a novel method to characterize the user error range error distribution after it has been monitored. This approach enables a simple characterization of the post-monitor distribution that accounts for the prior probability of a fault, the nominal errors of the prior distribution and the measurement error characteristics. This approach could enable the reduction of error bounds in current systems providing GNSS integrity like SBAS.



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