SIRE (sight-integrated ranging equipment): an eyesafe laser rangefinder for armored vehicle fire control systems

Howard S. Keeter; Glen A. Gudmundson; Milton A. Woodall II

doi:10.1117/12.43849

1 April 1991 SIRE (sight-integrated ranging equipment): an eyesafe laser rangefinder for armored vehicle fire control systems

Howard S. Keeter, Glen A. Gudmundson, Milton A. Woodall II

Author Affiliations +

Proceedings Volume 1419, Eyesafe Lasers: Components, Systems, and Applications; (1991) https://doi.org/10.1117/12.43849
Event: Optics, Electro-Optics, and Laser Applications in Science and Engineering, 1991, Los Angeles, CA, United States

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.

Citation Download Citation

Howard S. Keeter, Glen A. Gudmundson, and Milton A. Woodall II "SIRE (sight-integrated ranging equipment): an eyesafe laser rangefinder for armored vehicle fire control systems", Proc. SPIE 1419, Eyesafe Lasers: Components, Systems, and Applications, (1 April 1991); https://doi.org/10.1117/12.43849

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