Multi-pulse, multi-return, modal range processing for...

G - Physics – 01 – S

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G01S 17/10 (2006.01) G01S 7/487 (2006.01) G01S 7/481 (2006.01) G01S 7/497 (2006.01)

Patent

CA 2203598

A laser rangefinding system (12) that utilizes multiple pulse, multiple return, modal range processing for clutter rejection. A laser source (16) emits a series of laser beam pulses (42), and each reflected return from objects (46) in a scene for each of the pulses is recorded. Each return signal above a predetermined threshold is added as a count to a count table within a selected bin representing the range of the return signal. After all of the analog return signals are recorded, the range bin with the most counts is selected as the range of a target.

L'invention est un système de télémétrie laser (12) qui utilise un traitement modal multi-impulsion et multiretour des distances pour éliminer le fouillis. Une source laser (16) émet une série d'impulsions de faisceau laser (42) et chaque signal réfléchi par les objets (46) d'une scène pour chacune des impulsions est enregistré. Chaque signal de retour qui se trouve au-dessus d'un seuil prédéterminé est versé, dans une table de comptage, dans une case sélectionnée représentant la distance de l'objet réflecteur. Après l'enregistrement de tous les signaux de retour, la distance de la cible est déterminée par la case contenant le nombre le plus élevé de signaux de retour.

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