DESCRIZIONE
An apparatus (1) and method for ascertaining object kinematics of a movable object (20), comprising a trajectory calculation filter (2) for calculating an estimated movement direction (I) of the object (20) on the basis of a predicted position (II) of the object (20) and on the basis of the position (x k, y k) of the object (20) specified in radar measurement data of the object; and comprising a calculation unit (3) for calculating Cartesian speeds (v<i />xk, vyk) of the object (20) depending on the measured radial object speed (vradk) and a measured object angle (ϕk), which are specified in the radar measurement data of the object (20), and depending on the estimated movement direction (III) of the object (20) that is calculated in the trajectory calculation filter (2).