Laser rangefinder testing system incorporating range simulation

Details Laser rangefinder testing system incorporating range simulation Laser rangefinder testing system incorporating range simulation

G - Physics

01

S

G01S 7/40 (2006.01) G01C 3/08 (2006.01) G01S 7/497 (2006.01) G09B 9/56 (2006.01) G09B 23/22 (2006.01)

Patent

CA 2111068

LASER RANGEFINDER TESTING SYSTEM INCORPORATING RANGE SIMULATION ABSTRACT A range extinction simulator system that simulates an outdoor laser test range in a relatively small area, which provides for a computer controlled, electronic laser range simulator used to test laser rangefinders. The system evaluates a laser rangefinder's output energy and programs a laser transmitter to fire into the rangefinder at a specific optical power level needed to simulate a return signal from a target for a given range, atmospheric attenuation, and target reflectivity. This invention allows laser rangefind- ers to be tested without the necessity of a long distance (typically outdoor) laser range. The system provides for a significant cost savings over current test systems andimproves the ability to perform varied tests on laser rangefinders. The specific advan- tages that are realized are the elimination of the outdoor, fixed range, laser test facility with its associated maintenance and safety problems; the elimination of the necessity to move hardware to be tested from the manufacturing floor or development laboratory to the outdoor laser range for testing; the ability to test laser rangefinders during bad weather, and the ability to test laser rangefinders at variable ranges, target reflectivities, and atmospheric conditions, rather than at a single fixed range, single target reflectivity, and uncontrolled atmospheric conditions.

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