The GPS recievers see at least three satellites to know excatly where you are and where the goals are. The pico-sized transmitter in the ball and the two base stations use radio triangulation to always know where the ball is.
The GPS recievers see at least three satellites to know excatly where you are and where the goals are. The pico-sized transmitter in the ball and the two base stations use radio triangulation to always know where the ball is.