Gladys Mae West, the quiet mathematician behind the Global Positioning System that now guides everything from ride-hailing ...

As a Navy mathematician in the 1950s and beyond, she played an unheralded but foundational role in making possible the global satellite-based mapping system.

What if GPS had existed in 1565? No satellites or microelectronics, sure—but let’s play along. Imagine the bustling streets of Antwerp, where merchants navigated the sprawling city with woodcut maps.

Abstract: GPS has evolved into a vital component of our critical infrastructure. Originally developed over 50 years ago as a military navigation system, it has since been transformed into an ...

Global Navigation Satellite Systems (GNSS) have revolutionised location-based services by providing positioning information through satellite signals. In urban environments, however, positioning ...