EXPLORATORY RESEARCH ON SCORING TECHNIQUES BY OBSCURATION.
Abstract
The technique of scoring by obscuration has been investigated. The technique, which is completely passive and non-cooperative, detects the obscuration of background illumination caused by a passing projectile. Miss distance to the projectile is determined by the binocular ranging principle. A breadboard model of an electrooptical system employing this technique has been designed and fabricated. The model is a twochannel system, each channel containing an iris, a lens, a recticle, a photomultiplier tube, and electronic circuitry. The design is simple and entirely self contained requiring no elaborate support or data processing equipment. Laboratory and field evaluations of the system were successful in demonstrating the feasibility of the techniques. Accuracies of = 5% of miss distance over a range of 50-100 feet were achieved during a number of field tests. Recommendations for extending the field of view of the system are presented. In addition, a duplexing technique for determining relative trajectory and a technique for scoring at altitudes above the atmosphere are described. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1965
- Accession Number
- AD0465425
Entities
People
- Alan Bessen
- Arthur Wermund
Organizations
- Sperry Corporation