| 摘要 |
The device has devices for measuring the position of the vehicle with respect to a reference direction (10), and a mirror (7). The device has also devices for measuring the angular distance (dx) between an emitted beam (12), along a known direction with respect to the axis and the beam reflection. The angular distance is a function of the angle ( alpha ) between the emitted beam and the reference direction. The device has a form of reference fixed to the radar by means of which the emission source for the beam is positioned. This reference is moved so that the direction of the emitted ray is known and that the beam is parallel to the axis.
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