Global Navigation Satellite Systems Engineering, Policy, and Design
Global Navigation Satellite Systems Engineering, Policy, and Design
When we find ourselves in times of trouble, it can help to take the long view. Pull back, zoom out, range free. Consider…
By Alan Cameron
A great man has left us, left the international GNSS community. Dr. Javad Ashjaee passed away in Moscow on May 30 from the…
By Alan Cameron
The Federal Communications Commission should really consider updating its motto. “Firm, fast, flexible, and fair” has a bit of an old-fashioned ring. As…
By Alan Cameron
We stand at an existential crossroads while someone else decides our future. I don’t mean the choice of direction, currently roiling the front…
By Alan Cameron
GPS keeps a digital twin sequestered in El Segundo, California. Galileo has an Earth-bound space vehicle in Noordwijk, the Netherlands, straining at its…
By Alan Cameron
One may well ask, when doesn’t it? That aside, some controversy has arisen in the world of competitive running, and self-competitive running as…
By Alan Cameron
Plans have been submitted for a rocket launch site in the north of Scotland that could boost communications satellites into orbit in two…
By Alan Cameron
I strode into the plenary session of the ION International Technical Meeting, primed and ready for a barrage of modernity, of out-in-front advances…
By Alan Cameron
Very occasionally, history repeats itself, in oddly nuanced ways. I stand today at such a juncture. Nineteen years ago Glen Gibbons, the founder…
By Alan Cameron
The emergence of global navigation satellite systems, combined with the evolution of GPS, introduces new possibilities for the use of GNSS in aviation….
By Alan Cameron
Integrity denotes the measure of trust placed in the correctness of the information provided by navigation systems. Safety critical applications require integrity measures…
By Alan Cameron
A frequently asked question about GPS is: How accurate is a GPS-based position? The experienced GPS user knows that a big difference lies…
By Alan Cameron
The European Space Agency (ESA) funded the development of a new GNSS/INS navigation system called DINGPOS to assess the potential utility of Galileo…
By Alan Cameron
When the GPS program was established, military services were undoubtedly targeted as its primary user group, focusing on outdoor operations and offering the…
By Alan Cameron
The usual formulation of position determination involves four unknowns: three physical dimensions (X,Y,Z) and the satellite-receiver time offset. In cases where we can…
By Alan Cameron
