If you are interested in the Global Positioning System (GPS) and are not related to Rip Van Winkle, then you have heard about the controversy surrounding the latest AEP ground control segment software upgrade, designated as version 5.5C.More>>

On January 11, 2010, when the GPW Wing and the 2SOPS loaded the updated AEP 5.5C software to the "B" side of the ground control segment, it immediately caused a problem with a specific subset of GPS SAASM receivers. A second, unrelated problem manifested in different receivers two weeks later. Both...More>>

Numbers and geometry matter where GPS is concerned, and many of you have read these words in many of my columns or heard them in my presentations. Fortunately the U.S. military must have been listening as well, because just last week the Commander of U.S. Strategic Command General Chilton approved ...More>>

Teams in the National Football League have backups. The United States government, military, financial network, wireless communication and transportation infrastructures do not. Having ridden to election in part on the back of the previous administration’s lack of readiness for and response to...More>>

The National Geospatial-Intelligence Agency (NGA) has awarded Navteq a contract as the map data and content provider for the comprehensive global commodity dataset (SATNAV) that offers transportation, public venues and miscellaneous points of interest data layers.More>>

Collaborative navigation in GPS-denied environments can play a key role for dismounted warfighters, civilians, or robots in security, intelligence, and first-responder activities. Multi-sensor fusion algorithms based on optimization and a novel distributed iterative extended Kalman Filter produce a...More>>

GPS-denied navigation indoors, underground, on moving reference frames, and in urban canyons can be achieved in a practical approach suitable for use by the warfighter or emergency responder, using robotic vision algorithms and coupled MEMS-based dead-reckoning modules. Current robotic vision...More>>

A lightweight mobile testbed of the French Defence Procurement Agency replicates the onboard activity of an armored tank, using an augmented-reality image enriched with a dynamic overlay of 3D-projected information, including navigation channels, waypoints, and terrain anomalies. 6D real-time...More>>

A pseudolite system developed for the U.S. Army uses signals of opportunity to enable high-precision navigation in regions of GPS denial.More>>

Preplanning information about terrain is as important as real-time navigation for achieving peak performance in autonomous driving. Both preplanning and navigation — and key technologies to support them — helped the Carnegie Mellon Red Team successfully guide the robot vehicles Sandstorm and...More>>