Driving Blind — with Assistance 6D Positioning and Augmented Reality Jul 1, 2008 By: Aubert Carrel, Francis Martinez, Alain Lefaucheux, Xavier Leroi

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 positioning is derived from an RTK-differential GPS receiver, hybridized with inertial sensors via Kalman-filtering software.

Piercing the Veil Tests of a Flexible Pseudolite-Based Navigation System Mar 1, 2007 By: Aleksandar Jovancevic, Nikhil Bhatia, Joseph Noronha, Brijesh Sirpatil, Michael Kirchner, Deepak Saxena

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

Get Ready, Get Set, Race! Position and Orientation Data for Autonomous Navigation Sep 1, 2006 By: William "Red" Whittaker, Louis Nastro

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 H1ghlander through the 2005 DARPA Grand Challenge course.

Radar'd Out GPS Vulnerable to High-Power Microwaves Apr 1, 2006 By: Stanley F. Williams

Commercial GPS equipment, often present in military applications, is not designed to survive in one of the world's harshest electromagnetic environments -- the topside of a modern naval warship. One ship's radar can often disable another nearby ship's GPS antennas.

Guided to Gather — Toy Plane Upgraded with Telemetry Feb 1, 2006 By: Vanessa Espinar, Dana Wiese

GPS/INS and infrared optical sensors propel USGS's transformation of a remote-controlled one-quarter–scale recreational aircraft into a low-cost unmanned aerial vehicle designed for environmental particulate collection.

PPS versus SPS Why Military Applications Require Military GPS Jan 1, 2006 By: John T. Kelly

Low-cost, civilian Standard Positioning Service (SPS) GPS technology can appear desirable for some military applications and even operational fielding. Significant concerns abound, however, including misunderstandings of operational tradeoffs and increased exposure to specific threats.