Left: World map showing the location of GPS ground components It is shown that the issue associated with assuring Position, Navigation, and Timing is not one of building backup systems to augment the GPS, but, rather, one of designing and building … [Read more...] about Assured Position, Navigation, and Timing for the United States
Contributor: Dr. Gene H. McCall*
Universal Positioning, Navigation, and Timing: A System for the Future
Abstract The problems of the vulnerability of the Global Positioning System to jamming and interference and the inadequate performance of eLoran are addressed. A new system, which should satisfy national needs for decades into the future, is … [Read more...] about Universal Positioning, Navigation, and Timing: A System for the Future
GPS Vulnerability: Options and Alternatives
Abstract The Global Positioning System (GPS) was declared operational on December 8, 1993. Since that time the system and the receivers that use it have been improved to a level of performance unimagined by its creators. Also, the system has been … [Read more...] about GPS Vulnerability: Options and Alternatives
Securing the GPS
Recently, there has been a considerable interest shown in the fact that the nation has become very dependent on the GPS signals and the capabilities that they enable. There have been many presentations by those who claim that GPS signals are weak … [Read more...] about Securing the GPS