 | Alternative Navigation for GPS Denied Areas
Sep 1, 2008
By:Mark D. Chapman, Michael G. Farley
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 algorithms such as Simultaneous Location and Mapping (SLAM) are throughput-intensive and are not practical for the dismounted user. The MEMS provides excellent instantaneous sensor pointing information that reduces the SLAM processing requirements significantly.
 |
 | 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.
|
 | 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.
|
 | 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.
|
 | 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.
|
 | 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.
|
| 
