LOS ANGELES AIR FORCE BASE, El Segundo, Calif. — The U.S. Air Force Global Positioning System (GPS) IIF-4 satellite is ready for launch aboard a United Launch Alliance Atlas V Launch Vehicle on May 15 ...

Global Positioning System jamming is on the rise, highlighting risks to the U.S. economy from financial systems to civilian ...

Aerojet’s liquid second-stage engine helped power the Boeing Delta II launch vehicle and its Global Positioning System (GPS) satellite into orbit today for the U.S. Air Force from Cape Canaveral Air ...

Global Navigation Satellite System (GNSS) positioning techniques have evolved significantly over recent decades, spanning from traditional single-frequency methods to advanced multi-constellation and ...

Accurate smartphone positioning in dense urban environments remains challenging due to signal blockage, multipath effects, and unreliable satellite visibility. This study presents a new positioning ...

Urban environments present unique challenges for GNSS, which is the backbone of many navigation applications including smartphones and autonomous vehicles. The performance of GNSS systems deteriorates ...

The Michibiki No. 5 satellite that Japan's H3 rocket failed to put into orbit on Dec. 22 was supposed to form part of a ...

The West may be divided on tariffs, but all countries can agree that protecting global navigation satellite systems from interference from China, Russia and Iran is a matter of extreme importance.

TOKYO (Reuters) - Japan launched a rocket carrying a satellite with a local version of the U.S. global positioning system (GPS) on Thursday, which is expected to increase the precision of location ...

Global Navigation Satellite Systems (GNSS) underpin modern positioning and navigation, integrating signals from multiple satellite constellations such as GPS, GLONASS, Galileo and BeiDou. Recent ...