Department of Transportation study of GPS alternatives
Vulnerabilities of GPS
Skyhook’s Precision Location
Skyhook Testing Performance:
Technology Readiness LevelOnly two vendors who competed had a technical readiness level (TRL) of nine, which is the highest rank available, in all positioning cases. This includes dynamic indoor, dynamic outdoor, indoor and airborne. The technology readiness refers to if a system can be demonstrated in the field, and if the service could be rapidly implemented. Technical readiness and accuracy of location data are essential when analyzing performance in these tests.
Outdoor Positioning Accuracy
Four positioning scenarios were conducted during the demonstration: dynamic outdoor positioning with holds, static outdoor positioning, static indoor positioning, and airborne positioning, Skyhook performed the best in both outdoor positioning accuracy scenarios, with highly accurate performance specifically in static outdoor positioning. The static outdoor positioning scenario involved gathering data at three surveyed static points.