History and Development of Global Navigation Satellite System (GNSS)

Global Navigation Satellite Systems (GNSS) are a type of satellite-based navigation system that provides location and time information to users on Earth. The most well-known GNSS is the United States’ Global Positioning System (GPS), but other countries have developed or are in the process of developing their own systems as well, such as Russia’s GLONASS, the European Union’s Galileo, and China’s BeiDou.