System for determining the position of at least one target by tr

Details System for determining the position of at least one target by tr System for determining the position of at least one target by tr

1990-01-17

1991-04-16

Hannaher, Constantine

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

356 1, 342126, G01C 308, G01C 320

Patent

active

050085433

ABSTRACT:
A system is disclosed for determining the position of at least one target by triangulation, comprising two passive sighting devices which measure the intensity of radiation received along a sighting line which scans a vertical sighting plane. They are disposed at a distance from each other along the same vertical axis and are driven in rotation about this common axis so that their sighting planes merge. A circuit extracts the angular coordinates of the target, relative to each of the sighting devices, and computes the distance of the target by triangulation in the vertical sighting plane.

REFERENCES:
patent: 2489222 (1949-11-01), Herbold
patent: 3706493 (1972-12-01), Redmann
patent: 3961851 (1976-06-01), Gerharz
patent: 4697081 (1987-09-01), Baker
patent: 4704533 (1987-11-01), Rose et al.
patent: 4745284 (1988-05-01), Masuda et al.
patent: 4806936 (1989-02-01), Williams
patent: 4847485 (1989-07-01), Koelsch

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