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By GCN Staff

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GPS satellites improve position accuracy, deter spoofing

The Air Force will soon begin early implementation of the GPS Civil Navigation message and will use the process to help develop new countermeasures against spoofing, according to an article in Aviation Week.

GPS satellites will begin early broadcast of the more accurate navigation messages on the new civil L2C and L5 signals.

The L2C signal will enable "dual frequency," which will increase position accuracy and provide fast initial location.  L5 -- the international "safety of life signal" for aviation --  will enable moving from landmark and radar-based navigation to GPS-guided approaches and landings.

These upgrades improve anti-jam capabilities for the warfighter and improve security for military and civil users around the world.

The early implementation of the message broadcast is expected to begin in April 2014 and help development of user equipment compatible with the civil signals. The pre-implementation phase will also help the Air Force find new ways to protect against the growing threat of spoofing, in which vehicles can be put off course by counterfeit signals, Aviation Week reported. 

Posted by GCN Staff on Apr 14, 2014 at 9:55 AM


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