Applications of a Gated Imaging System in Evaluation of Laser Designator Performance,
ARMY MATERIEL TEST AND EVALUATION DIRECTORATE WHITE SANDS MISSILE RANGE N MEX
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In the early 1970s the Army Materiel Test and Evaluation Directorate, White Sands Missile Range, undertook a multi-year test methodology development program to perfect techniques and develop hardware required to evaluate an anticipated family of Army Laser Designators. Standard laboratory test instruments and procedures were readily available however, the more complex problems of energy distribution within the laser beam were not resolved. A concurrent development, at this point, was a shift toward acquiring data, wherever possible, in an image format, and subsequently processing the data on a large-scale digital computer. These two ideas led to the development and subsequent procurement of a data acquisition system known as the Laser Spot Scanning System or LS3. The LS3 is a gated, image-intensified silicon vidicon camera with a standard S-1 response. The camera is equipped with a 1.06 micron spike filter mounted on a 15 mm to 150 mm zoom lens. Mounted on top of the cameras environmental container is a YAG 444 series photo-diode with associated optics. The photo-diode controls the gating function of the camera. Control of the camera is remoted, and the output recorded on a standard video tape recorder andor displayed on a standard closed circuit television monitor.
- Lasers and Masers