USDOT releases PNT and GPS Backup Technologies report
The report details the results of field demonstrations of mature PNT technologies that could offer complementary service in the event of GPS disruptions
The U.S. Department of Transportation (USDOT) released the Complementary Positioning, Navigation, and Timing (PNT) and GPS Backup Technologies Demonstration Report to Congress final report. USDOT’s Volpe National Transportation Systems Center (Volpe Center) conducted field demonstrations of candidate PNT technologies that could offer complementary service in the event of Global Positioning System (GPS) disruptions. The purpose of the demonstrations was to gather information on PNT technologies at a high Technology Readiness Level that can work in the absence of GPS.
“The results of the thorough scientific research conducted by this demonstration effort indicate that there are suitable, mature, and commercially available technologies to back up or to complement the timing services provided by GPS. However, the demonstration also indicates that none of the systems alone can universally back up the positioning and navigation capabilities provided by GPS and its augmentations. This necessitates a diverse universe of positioning and navigation technologies,” said Diana Furchtgott-Roth, USDOT’s Deputy Assistant Secretary for Research and Technology.