Since the dawn of GPS, researchers have worked to improve the accuracy of estimated positioning, navigation and timing (PNT) from the receiver-derived pseudorange, carrier-phase and Doppler ...

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 ...

No audio available for this content. (Image: Authors/Trimble) For those who want high accuracy, but don’t need it full time, high-productivity dedicated professional solutions may not be ...

Self-driving cars need to know exactly where on the road they are located at all times. A new invention could revolutionize the development of driverless vehicles—and give us more accurate GPS on our ...

A new carrier-phase-based method for satellite-ground time synchronization has ushered in a new era of precision, achieving picosecond-level accuracy that far surpasses traditional methods. This ...