Featured in global positioning system

New GPS Receiver Offers Navigation Accurate To An Inch
New Ground-Based Indoor Positioning Tech Is Accurate Down To Just A Few Inches
The First Direct Measurements of Earth’s Rotation, Made With the World’s Most Stable Ring Laser
Next-Gen GPS Satellite, Accurate to Within Three Feet and Indoors, is Ready for Testing
Ground-Based Version of Satellite GPS Could Make Positioning Technology Accurate to Inches Anywhere
Radar Shoes Could Help Locate Users Where Satellite Signals Won’t Go
To Thwart Predators, South Korea Is Issuing GPS Devices to Schoolchildren
U.S. Air Force Urgently Seeks Alternatives to GPS
Television Signals Plug the Holes in GPS
Every Step You Take . . . Every Move You Make . . . My GPS Unit Will Be Watching You