Powerful jamming knocked out GPS and BeiDou in Nanjing, affecting millions of residents and city services.

The spacecraft is the 56th BeiDou satellite to get off the ground. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. China launched a satellite for ...

While serving on the National Security Council staff in the Biden administration, I was tasked with strengthening the resilience of U.S. critical infrastructure, namely its reliance on GPS for ...

Traditional inertial navigation systems calculate position by continuously integrating motion data. Over time, even microscopic measurement errors accumulate, gradually pushing position estimates off ...

No audio available for this content. Figure 1. Global position accuracy of the BDS B1C signal (95%) Chart: Test and Assessment Research Center of China Satellite Navigation Office Over the past year, ...

A new study reveals advanced methods for improving orbit determination (OD) of large constellations of Low Earth Orbit (LEO) satellites, utilizing Global Navigation Satellite System (GNSS) ...

June 10, 2024: Once more, the Russian GLONASS is in trouble. The problem is a familiar one, too many GLONASS satellites are ending their service lives, usually seven years, and Roscosmos, the Russian ...