Recent eVTOL innovations, FAA-certified autonomous flight systems and UAV testbeds are reshaping urban air mobility and cargo automation ...

This article is based on a presentation to the National Space-Based Positioning, Navigation and Timing Advisory Board in June 2015. The study reported on at the meeting was requested by the National ...

Though marvelous, GNSS are also highly vulnerable. eLoran, which has no common failure modes with GNSS, could provide continuity of essential timing and ...

Recent changes in hardware and standards make one-meter accuracy possible, in some cases as soon as this year. The transcript of a talk given to Android developers earlier this year, this article ...

Positioning, navigation and timing (PNT) orbs guide 50-ton robots carrying containers at the Ports of Auckland. In a world-exclusive report, GPS World visited with officials at the Ports of Auckland, ...

What happened is open to educated conjecture. In this column, I’ll briefly cover the history of spoofing, its basic techniques, some spoofing tests that we conducted, and then return to the infamous ...

You may have heard about “NMEA data” with respect to GPS. NMEA can be confusing because there are a few NMEA messages, not just one.

Unmanned aerial vehicle (uav) used in the spoofing tests; owned by the University of Texas. A radio signal sent from a half-mile away deceived the GPS receiver of a UAV into thinking that it was ...

China’s BeiDou GNSS is newer, has more features, is more accurate, and has more satellites in the skies of more nations than the venerable U.S. GPS, according to Sarah Sewall, Executive Vice President ...

More Is Better The technique of precise point positioning (PPP) is making inroads in the positioning industry. However, one issue hampering its more widespread adoption is the convergence time ...

According to the Russia and CIS Radionavigation Plan, the terrestrial Chayka system, a version of Loran-C, is maintained to protect their homeland with navigation and timing services when signals from ...

By James R. Clynch, Andrrew A. Parker, Richard W. Adler, and Wilbur R. Vincent, Naval Postgraduate School; Paul McGill and George Badger, Monterey Bay Aquarium Research Institute “Mr. Holmes, they ...