The positioning, navigation, and timing (PNT) information is fundamental to modern information systems. Over the years, people have invented many navigation systems to get PNT information, whereas ...

A novel method using signals of opportunity from Low Earth Orbit (LEO) satellites is redefining what’s possible in satellite-based navigation. Researchers have developed a joint pseudo-range and ...

Researchers from the Aerospace Information Research Institute, Chinese Academy of Sciences, have pioneered a combined pseudo-range and Doppler positioning method that leverages signals from ...

Satellite-based positioning, a cornerstone of modern geospatial technology, relies on a constellation of orbiting satellites to provide precise geolocation and timing information to receivers ...

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 ...