How do autonomous vehicles “see” the world with position sensing?
Everybody knows about GPS, which is an acronym for the Global Positioning System, America’s satellite navigation system. Together with its foreign counterparts, including GLONASS, Galileo, and Beidou among others, they are known collectively as the Global Navigation Satellite System, or GNSS. What more does an autonomous or a semi-autonomous vehicle need? Plenty, as we will see.