Lockheed Martin GPS IIIF

By Graham Warwick
GPS has become a household term over the last 50 years. Over the coming decades, it is likely to be subsumed into another three-letter term, PNT.
Emerging Technologies

By Bill Carey
WAAS is undergoing a major upgrade and preparing to incorporate the Pentagon’s new L5 civil signal for aviation safety services.
Airports & Networks

By Graham Warwick
Over 50 years, GPS has evolved and inspired the development of similar systems by other nations.
Space

By Michael Bruno
How much has GPS boosted U.S. businesses? The answer is astronomical.
Space

By Steve Trimble
The U.S. Air Force hailed the test flights as a “groundbreaking achievement," but magnetic navigation technology still faces technical limitations.
Sensors & Electronic Warfare