Observed arrival · 2026-09-26
NavGuard proposes aircraft-based GNSS integrity mapping
The concept would aggregate GNSS integrity indicators broadcast by ADS-B-equipped aircraft into a real-time view of coverage across airspace.
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- Aviation operators monitoring GNSS integrity
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- The proposed pipeline combines integrity indicators with aircraft position and report time to create a spatial coverage window.
Field notes
The proposed inputs include Navigation Integrity Category (NIC), with NACp, SIL, and SDA listed as optional indicators. The page says reports would be tied to aircraft position and time before being aggregated, but it provides no live display or evidence of deployment. It identifies Gavin Nicholas MacLennan as the inventor and describes the material as a public technical disclosure.
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Editorial observations of this landing page, not a rating.
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