From Theory to Flight: Part 1
In this first part of a two-part series, a research team based at the University of Minnesota–Twin Cities describes the activities at a UAV research lab there, including design of simulations and research avionics, and operation of small UAVs that make aircraft safer and more fuel-efficient.
Why GPS Will Continue to Dominate Consumer GNSS
A GNSS Forum commentary takes us on a journey through the evolution of consumer GNSS and a look into the future, asserting that GPS is the dominant GNSS system.
Results of the Galileo In-Orbit Validation Test Campaign
Nine years after the start of the Galileo In-Orbit Validation (IOV) phase in 2004, ESA conducted a test campaign to demonstrate that the system configuration currently deployed is on track to deliver its expected performance. ESA engineers describe the campaign and its results
Tracking and Mitigating a Jamming Signal with an Adaptive Notch Filter
The rise of inexpensive yet powerful GNSS jammers is driving numerous R&D efforts to find ways to thwart the use of such devices. Researchers at the European Commission Joint Research Center describe their use of an infinite impulse response adaptive notch filter to mitigate the effects of jamming.
Budget Cuts Put GPS Redesign on Hold, Stall Modernization; Dual-Launch Still a Possibility
Recognizing the Assets and Values That We've Inherited
We must acknowledge the reality of — and debt owed to — the GPS
C/A-code’s historical precedence, its persistent utility, and its
incorporation into the more than one billion GNSS receivers in use
In this issue: No Love from the FAA, SVN64, Black Swans, Glonass-M #54 and India's second geosynchronous satellite
Will Modern Also Be Better?
After 46 years of familiarity with the GPS C/A code, GNSS manufacturers and civil users are being introduced to a bunch of relative strangers: nearly a dozen new signals coming on the air in the next few years.