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Proceedings Paper

SIRE (sight-integrated ranging equipment): an eyesafe laser rangefinder for armored vehicle fire control systems
Author(s): Howard S. Keeter; Glen A. Gudmundson; Milton A. Woodall II
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Paper Abstract

The Sight Integrated Ranging Equipment (SIRE) incorporates an eyesafe laser rangefinder into the M-36 periscope used in tactical armored vehicles, such as the Commando Stingray light tank. The SIRE unit provides crucial range data simultaneously to the gunner and fire control computer. This capability greatly reduces 'time-to-fire', improves first-round hit probability, and increases the overall effectiveness of the vehicle under actual and simulated battlefield conditions. The SIRE can provide target range up to 10-km, with an accuracy of 10-meters. The key advantage of the SIRE over similar laser rangefinder systems is that it uses erbium:glass as the active lasing medium. With a nominal output wavelength of 1.54-microns, the SIRE can produce sufficient peak power to penetrate long atmospheric paths (even in the presence of obscurants), while remaining completely eyesafe under all operating conditions. The SIRE is the first eyesafe vehicle-based system to combine this level of accuracy, maximum range capability, and fire control interface. It simultaneously improves the accuracy and confidence of the operator, and eliminates the ocular hazard issues typically encountered with laser rangefinder devices.

Paper Details

Date Published: 1 April 1991
PDF: 10 pages
Proc. SPIE 1419, Eyesafe Lasers: Components, Systems, and Applications, (1 April 1991); doi: 10.1117/12.43849
Show Author Affiliations
Howard S. Keeter, Optic-Electronic Corp. (United States)
Glen A. Gudmundson, Optic-Electronic Corp. (United States)
Milton A. Woodall II, Optic-Electronic Corp. (United States)

Published in SPIE Proceedings Vol. 1419:
Eyesafe Lasers: Components, Systems, and Applications
Anthony M. Johnson, Editor(s)

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