Disclosed is a method for enhancing data wipeoff using predicted future navigation data and improved timing alignment. Proper time alignment of predicted future navigation data to the navigation data to be wipeoff enhances data wipeoff by reducing or elimi...

The invention consists in a method for ascertaining the mutual visibility of two points (A, B), comprising at least the following functional steps: determine the position of the above-mentioned points (A, B) and trace the route that joins them; if the dist...