portable device and method of geolocation and location of an object in continuous movement in a constrained environment

The invention includes a portable device and a vehicle tracking and locating method continues to a moving object in a constrained environment. This device comprises: - means (10) for determining the vector travel speed of the object by measuring airspeed suitable for performing measurements relative wind generated by the motion of the object and outputting a corresponding signal (11), - means (12) for processing this signal adapted to calculate the velocity vector of the object and the position thereof, and - a unit (13) for displaying this position.