High-precision orbit and clock information is a basic requirement for precise positioning with Global Navigation Satellite Systems (GNSSs) such as the American GPS or the European Galileo. Satellite ...

This initiative aims to augment the existing GPS constellation with small, low-cost satellites to enhance resilience for both military and civil users. The program’s initial phase, Lite Evolving ...

With the advent of satellite navigation, the requirement for accurate time reached the order of nanoseconds, because a signal delay of one nanosecond corresponds to roughly one foot of distance on the ...

The Space Force wants to launch dozens of small, cheap satellites as part of its Resilient GPS program, meant to augment the existing constellation. (Astranis) The Space Force wants its next fleet ...

Fig. 2: Influence of radiation pressure modeling on clock residuals for GPS III satellites as a function of the Sun-Earth-satellite angle epsilon. Fig. 2: Influence of radiation pressure modeling on ...

The initial 10 new "GPS IIIF" satellites are the first of a potential 22 in an estimated $9.2 billion program for spacecraft with greater accuracy and jam-proof signals for the GPS system, which ...

Using Einstein’s theory of general relativity, physicists found that clocks on the Moon would run 56 microseconds faster than ...

This method, called GPS spoofing, tries to deceive a GPS receiver by transmitting fake signals that appear legitimate but ...

Launch marks milestone in breakthrough partnership to unlock vehicle autonomy and industrial automation with ...

There are several examples of the theory of relativity that we can observe in real life and the technologies we use today.