Paired overbounding for nonideal LAAS and WAAS error distributions |
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Authors: | Jason Rife Sam Pullen Per Enge Boris Pervan |
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Institution: | Dept. of Aeronaut. & Astronaut., Stanford Univ., CA; |
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Abstract: | A significant challenge in fielding space-based and ground-based augmentation systems (SBAS and GBAS) for GPS involves the validation of navigation integrity, which requires the establishment of error bounds for aircraft position. This paper introduces a new approach to validating position-domain integrity by using two-sided envelopes for each ranging source. This paired-bounding approach allows for error distributions of arbitrary form and thus improves on earlier integrity validation approaches restricted to zero-mean, symmetric, and unimodal distributions |
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