Detecting GNSS spoofing in civil aviation through VDL signal physics and AIS maritime cross-correlation โ independent of GPS.
Civil aviation relies almost entirely on GNSS for positioning. Spoofing attacks can silently redirect aircraft by feeding false satellite signals โ and current systems have no independent way to verify.
Attackers broadcast counterfeit GPS signals, causing aircraft navigation systems to compute false positions without any onboard alarm.
Documented GPS spoofing events near Kaliningrad and the eastern Baltic have affected commercial aviation, exposing critical infrastructure vulnerability.
Current RAIM and SBAS systems detect satellite failures โ not intentional spoofing. There is no sovereign, ground-truth verification layer.
WHITTLE-PNT cross-validates reported GNSS positions against physical observables that are impossible to spoof remotely.
Our ground station receives VDL data link transmissions from aircraft. The physical signal carries Doppler and timing signatures that reveal the aircraft's true position โ regardless of what the GPS says.
In coastal corridors, ships and aircraft derive positions from the same GPS constellation. If aircraft positions shift but nearby maritime AIS positions remain stable โ it's targeted spoofing.
A fusion engine that combines all independent data streams into a single navigation integrity score.
| Score | Status | Action |
|---|---|---|
| > 0.85 | โ Verified | Normal operations |
| 0.50 โ 0.85 | โ ๏ธ Degraded | Flag for human review |
| < 0.50 | ๐จ Spoofing | Automatic escalation + evidence capture |
Operational ground station receiving live aircraft data links at 136 MHz
Maritime position data from coastal stations and satellite AIS providers
Beyond line-of-sight telemetry via Iridium/Spire satellite links
High-performance computing for real-time multi-source data fusion
Cryptographic protocol where radio physics serves as the trust anchor
Real-time visualization of navigation integrity across monitored airspace
WHITTLE-PNT is developed under the European Space Agency's Navigation Innovation and Support Programme, addressing resilience techniques for GNSS receivers.
Building sovereign navigation integrity for European critical infrastructure.
Malgorzata Tolisz โ CEO & Chief System Architect
malgorzata.tolisz@viaratech.com
+48 511 839 132
Turzany 9, 56-160 Wiลsko, Dolnoลlฤ skie, Poland
KRS: 0001048610 ยท REGON: 525915492 ยท ESA-Star: 1df4838f