Glint Field Trial Results and Application to Glint Threshold Distance Algorithm
Abstract
This report describes the results and applications of the U.S. and U.K. joint venture glint field trials conducted in the summer, 1997, in Malvern, England, under Army operations information exchange agreement IEA-A-A-96-1998. As a model validation and verification effort, the Field Trial results obtained would be used to improve the integrity of an existing U.S. Glint threshold algorithm. Software adjustments would tentatively be made to the existing algorithm to improve glint threshold distance calculation accuracy, making the modified model a better iterative eye armor design tool. The combined effects of atmospheric extinction and turbulent distortion CN2 play a major role in degrading the optical image or electro-optical energy transmitted along its sun to reflector to observer optical path. A range of relative reflectivity coefficients corresponding to reflecting surface solar incidence angles describe the optical reflectivity characteristics of the surface in question. Incorporating these effects and the detector (eye) power angular resolution concepts, spectrally resolved and integrated contrast ratios of reflecting source to background, which are independent of solar fluctuations, can generate more accurate visual threshold domains and a more useful reflecting surface design tool.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1998
- Accession Number
- ADA342520
Entities
People
- Brian Kimball
- William J. Chevalier
Organizations
- United States Army Soldier Systems Center