Government, industry and public safety leaders call for action on PNT resiliency as threats escalate.

This new collaboration will demonstrate how terrestrial 5G-based timing can provide scalable solutions to complement and ...

Launched in 2003, Canada’s Precise Point Positioning (PPP) service, CSRS-PPP, continues to solidify its place as a ...

You’ve probably heard of at least one of those terms in any discussion around GPS anti-jam technology for defense. Because they are all terms that describe essentially the same thing: a specialized ...

By Daniel Shepard, Jahshan A. Bhatti, and Todd E. Humphreys u0007 Unmanned aerial vehicle (uav) used in the spoofing tests; owned by the University of Texas. A radio signal sent from a half-mile away ...

Timing from atomic clocks is now an integral part of data-center operations. The atomic clock time transmitted via Global Position System (GPS) and other Global Navigation Satellite System (GNSS) ...

This update to a seminal article first published here in 1998 explains how statistical methods can create many different position accuracy measures. As the driving forces of positioning and navigation ...

What is a mobile GNSS solution? Are the terms “mapping grade” and “resource grade” still useful? Who is using which devices for which tasks? Bernhard Richter, VP Geomatics at Leica Geosystems, which ...

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 ...

GPS signals are so weak, they cannot be used reliably where they are obstructed. But if the satellites were much closer, their signals would be much stronger.

The figure in the box titled “GEOID18 Conversion Surface in cm” is the surface that represents the difference between NAVD 88 as a datum and the geopotential (geoid) surface used in the gravimetric ...

Upholding the principles of “ superior construction, excellent management, and substantial development,” the BeiDou Navigation Satellite System (BDS) implements multifaceted strategies to ensure ...