A navigation system for self-driving vehicles that uses satellite radar data has won the top prize in the European Earth-monitoring competition.

In its third year, the Copernicus Masters competition - previously known as the GMES Masters - received more than 140 business proposals from teams in 23 European countries.

The competition seeks innovative solutions for business and society based on Earth observation data, while fostering creative product development and entrepreneurship in Europe.

The 2013 winners were announced on Tuesday at an event in Munich, Germany.