Accession Number : AD0270630

Title :   VISUAL DETECTION FROM AIRCRAFT

Corporate Author : GENERAL DYNAMICS/POMONA CALIF

Personal Author(s) : LINGE,ASBJORN

Report Date : DEC 1961

Pagination or Media Count : 1

Abstract : An analysis was made of the visual capability of an observer in an aircraft to detect certain military-type targets on the ground. The visibility study was conducted in a general manner so as to be useful in any evaluation of unaided visual detection capabilities in airborne vehicles. General methods were sought for determining the accumulative probability of detecting targets as a function of aircraft speed and altitude, target and background characteristics, and the observer's environment. The methodology derived to ascertain the probabilities of detection for a static observer viewing targets against a visually homogeneous background is described. A method wherein the static detection probabilities may be transformed into the cumulative probabilities for a moving observer searching a limited area for targets is also described. The general problem was studied, and a number of figures for various atmospheric and traget-background conditions were generated. A Soviet JS-III tank was chosen as a typical militarytype ground target. (Author)

Descriptors :   *EYE, *SPACE PERCEPTION, *TARGET RECOGNITION, *TELEGRAPH EQUIPMENT, AIRBORNE, ARTIFICIAL RADIOACTIVITY, ATTENUATION, CLIMATE, PROBABILITY, VISIBILITY

Distribution Statement : APPROVED FOR PUBLIC RELEASE