| 摘要 |
A high speed laser ranging device composed of a transmitter/receiver unit and a target including a retroreflector adapted to receive a laser pulse (Ii) transmitted by the unit and to return it parallel to itself. This transmitter/receiver unit travels, with respect to the target, along a relative path with an overall relative velocity V, and normal to an instantaneous line joining it to the target, with a transverse relative velocity vt which, on average, is of the order of at least 1 km/sec. The retroreflector has a cube corner shape with three reflecting plane faces, two of which are normal to the third one, and forming between each other a dihedral angle (71) referred to as the "corrected dihedral angle", differing from 90 DEG by a deviation value epsilon at least equal to one arcsecond. The "corrected dihedral angle" is contained within a plane (P) passing through the axis (n) of the cube corner and is at least approximately normal to the average orientation of the transverse relative velocity V within the field of view (C) of the cube corner and the deviation epsilon ranges between the minimum and maximum values of vt/(c. sin THETA ), in radians, within this field of view, where THETA is the angle between the instantaneous line and the corrected dihedral angle, and where C is the speed of light.
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