What Lies Ahead
The massive turnover that occcurs when the United States executive branch moves from the hands one political party to another will see the departure of many officials with GPS expertise. Who will fill the gap and what will that mean for the nation’s premier space-based positioning, navigation, and timing program?
Clashing trajectories pressure GNSS providers - but growing commercial markets inspire a search for compatibility at the third plenary meeting of the International Committee on GNSS.
An Error Isotropy–Based Approach for Multiple
A new technique for computing protection levels in “liability critical” applications — those in which large undetected GNSS position errors can have severe legal or economic consequences.
GNSS Friend or Foe?
The IMES positioning and communications system developed as part of Japan’s Quasi-Zenith Satellite System may be the perfect answer for “seamless” ubiquitous positioning — or perhaps a jamming threat to the integrity of GPS.
So, President Obama wants to spend some money on infrastructure, eh? Well, here’s an idea: send some of it GPS’s way.
The idea of flying two or more satellites in controlled formations with
complementary sensors on board to execute scientific research missions
will receive a lot of practical attention in the near future. In some cases, GNSS signals will be used to meet the
high-precision positioning and orientation requirements for this
application. Other, higher-orbit missions will employ RF-based
techniques similar to those used to make GNSS carrier phase
measurements. The second and final part of the series describes the technologies and techniques used in this scientific
GNSS data points and factoids to amuse and inform
Sibling Rivalry at ICG, Gas Tax Wars in Oregon, What Next in Washington D.C., and The Gift of the Magi