Positioning, Navigation, and Timing Trust Inference Engine
from Inside GNSS
Critical infrastructure has a compelling need to infer the assurance of PVT estimates — as do users in general. However, traditional PNT platforms do not offer a principled way to infer assurance from multiple anti-spoofing (A-S) techniques, situational awareness (SA) information and other auxiliary sources such as network data. Here we introduce a PNT Trust Inference Engine (PNTTING) that can assess PNT trust according to probabilistic models with rigorous semantics.
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