Accession Number : AD0786526

Title :   A Model of Masking by Terrain Applied to Visual Observation.

Descriptive Note : Technical rept.,

Corporate Author : ARMY MISSILE COMMAND REDSTONE ARSENAL ALA SCIENTIFIC AND ENGINEERING SYSTEMS DIV

Personal Author(s) : Weldon,Mark R.

Report Date : SEP 1974

Pagination or Media Count : 54

Abstract : A simulation of masking by terrain, as applied to visual observation is described in detail. Basically the model generates the trajectory of a light ray from an observer to an observed point, examines the terrain at specified intervals along the trajectory, and determines if, and where, the light ray trajectory is masked by terrain. (Author)

Descriptors :   *Aerial targets, *Visual perception, *Masking, Terrain models, Line of sight, Coordinates, Trajectories, Computerized simulation

Subject Categories : Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE