G - Physics – 01 – B
Patent
G - Physics
01
B
354/2, 343/37, 3
G01B 11/26 (2006.01) F41G 3/26 (2006.01) G01S 5/16 (2006.01) G01S 17/42 (2006.01)
Patent
CA 1116277
Abstract of the Disclosure The positions of target reflectors at a distance from a measuring station are measured with fan-shaped annularly sweeping beams of radiation emitted from the measuring station and reflected back to a detector there when each beam is intercepted by a reflector. Expected reflector distribution is analyzed to ascertain, as between adjacent reflectors at equal distances from the station, the minimum projected distance expectable between such reflectors in a separation direction in which separation can be maximum and the maximun projected distance between then in the transverse direction. Each of at left two beams has its long cross-section dimension oriented to be at an angle to that of the other and at an angle to the separation direction which is such that its tangent value is greater than the ratio of said maximum distance to said minimum distance. Each of those beams is swept to move between intersection with an origin point on one side of a solid angle space swept by the beam and intersection with another point that is on the opposite side of said space and is spaced in the separation direction from the origin point. Angular positions of both beams are aligned increasing magnitudes with increasing distance from the origin point, for unambiguous measurement of target posi- tions. For a given orientation of long cross-section dimensions of each beam, targets at like distances from the station must each be in an hour-glass-shaped region of isolation related to that beam orientation.
322595
Marks & Clerk
Saab-Scania Aktiebolag
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