Is a ground-based positioning system now being fielded the answer to GPS’ vulnerabilities?
Monday, 8 July 2013
Graham Warwick, Aviation Week Magazine, Monday, 8 July 2013
How does a squadron charged with testing navigation and guidance systems in extreme jamming know where its aircraft and weapons are and how they are performing when GPS is jammed? The answer from next year on will be by using a local positioning system that has the potential to back up GPS wherever jamming or spoofing could have disastrous results, such as critical infrastructure, airports or guiding unmanned aircraft in civil airspace.
The U.S. Air Force is to deploy a ground-based non-GPS positioning system, developed by small Australian company Locata, over 2,500 sq. mi. of the White Sand Missile Range, N.M., to provide a highly accurate, sub-meter, reference for “navigation warfare” testing by the 746th Test Sqdn. The LocataNet system works like GPS, but on a different frequency and at much higher power, so it works when GPS is jammed.