Wireless electronic devices suitable for tracking a terrestrial object within a close range, and more particularly, an object in continuous or intermittent movement which is bearing a specific device. A device and method for tracking the bearer of a specific electronic device, in an open or closed space using a second device connected to the first by a data link. Methods for determining the exact coordinates of the bearer in movement in a Cartesian plane centered on the second device which may also be itself in movement.