Method for determining a trajectory of a movable carrier in real-time and in non-real-time

A system for determining a trajectory of a movable carrier, comprising:

• a movable device (DM), on board the movable carrier, comprising at least one relative position information sensor and at least one absolute position information sensor, the movable device being configured for determining, at each instant ti, a merged trajectory (TrA) of the movable carrier, with the merged trajectory (TrA) being obtained by merging data provided by the relative position information sensor with data provided by the absolute position information sensor, and, at a plurality of determined instants tk determined from among the instants ti, for generating a merged data packet (Dkfus) comprising data merged at the determined instant tk and at least one confidence indicator (ckfus) associated with the data packet of the merged position at the determined instant tk, with the confidence indicator (ckfus) comprising information concerning the precision of the data provided by the absolute position information sensor;
• a fixed device (DF), configured for determining, at each determined instant tk, a regularized trajectory (TrB) as a function of the detection of a jump in position of the movable carrier in the merged data packet between the previous determined instant tk−1 and the determined instant tk.