Opinions

UAV industry demonstrates innovation

February 23, 2017By
Shadow launch.

A new system using RF detection of drone radio transmissions to warn of incoming drones is just one of several interesting developments in the unmanned systems sector this month. read more

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Expert Opinions: The effect of LEO constellations on GNSS services

February 20, 2017By
Per Enge, Professor and Director, Stanford university Center for Position Navigation and Time

Experts explain the potential for low-Earth orbit constellations to augment services provided by the four medium-Earth orbit GNSS. read more

Agricultural robot market impacted by urbanization, less land

February 12, 2017By
GPS0217_Magnum-340-Wheeled-Tractor_alan-out-in-front

Robots are way cool. Anyone three or older knows that. And agricultural robots were among the first envisioned civilian applications of GPS. When Brad Parkinson went to Stanford in 1984, one of the earliest demonstrations he and his bright new students conducted was fully automatic GPS control of farm tractors on a rough field to an accuracy of 2 inches.... read more

The changing face of defense PNT

February 8, 2017By
warfighter-tunnel-O

With a host of innovative technologies on the horizon, PNT is about so much more than GPS these days, and the military knows it. GPS is not going anywhere. But it’s not a complete solution either. read more

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Establishing orthometric heights using GNSS — Part 11

February 1, 2017By
Figure 1 – GPS on Bench Marks Residuals using GEOID12B computed using NGS GPS on Bench Marks Shapes/rasters

Strategically Occupying Stations to Support NGS’ GPS on Bench Marks Program This is the 11th segment in my series on “Establishing Orthometric Height Using GNSS.” Each column has focused on a specific topic and provided procedures and tools for analyzing that topic. The columns are meant to build on each other. When addressing a topic that has been discussed in... read more

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CNN explores space warfare, US military’s use of GPS

January 26, 2017By

A spaceborne laser zaps a GPS satellite, disabling it. A “kamikaze” satellite hits and destroys other nations’ critical satellites. Another satellite moves beside an Intelsat bird — and listens in. A new CNN special considers all of these possibilities in an exploration of an arms race in space, showcasing the devastation that would be caused by space warfare and how the... read more

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Expert Opinions: Integrity in the vehicle environment

January 23, 2017By
Chris Rizos, Professor, Geodesy and Navigation, 
University of New South Wales

Q: Why do we need to take integrity seriously in the vehicle environment?   A: Since the 1980s, surveyors and geodesists have used GPS for high-accuracy positioning. We take for granted centimeter- and even millimeter-level accuracy positioning capability that is faster, more reliable, at a lower cost and with fewer constraints than ever before. However, the demand for “trustworthy positioning”... read more

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Drone developments: Avionics, fuel cells and swarms

January 18, 2017By
H2QUAD 1000 quad-rotor UAV, on site in France.

The first year I was at the Association for Unmanned Vehicle Systems International (AUVSI) convention in 2012 (well before it became Xponential) in Las Vegas, Nevada, I spent a lot of time looking for any exhibitors who were thinking of business in commercial unmanned aerial systems (UAS). At that time, the U.S. military had not yet suffered the major budget... read more

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