This is why atomic clocks were one of the enabling technologies for GPS. In turn, atomic clocks on GNSS satellites became the most convenient way to calibrate and synchronize local clocks on the ...

The Pentagon’s first batch of new and more capable GPS satellites, part of the GPS IIIF program, is facing significant delays ...

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 ...

The Space Force is targeting $50 to $80 million per satellite — a fraction of the $250 million it costs for just one Lockheed ...

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 ...

Chinese scientists have advanced in developing a high-power microwave weapon system that uses multiple transmitting vehicles ...

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