Accession Number : AD0767211

Title :   A Two-Reference-Point Procedure for Locating a Target.

Descriptive Note : Final rept. Oct 69-Sep 71,

Corporate Author : AEROSPACE MEDICAL RESEARCH LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Aume,Nilss M.

Report Date : MAY 1973

Pagination or Media Count : 23

Abstract : Subjects flying in a light aircraft at 3000-ft altitude estimated the locations of ground targets in relation to two fixed markers. Sighting was done with naked eyes or by use of a special sighting device. The estimates were expressed in polar coordinates: the distance was expressed as a ratio to the inter-marker distance, and the angle in terms of clock hours with respect to a line through the markers. A target precisely in middle between the markers produced no error. Otherwise, errors--the distance between the target and its estimate--increased with greater target-to-center distances. The sighting device failed to produce any improvements, due to the amount of tracking necessary and to turbulence. (Author)

Descriptors :   (*SURFACE TARGETS, *POSITION FINDING), (*AERIAL RECONNAISSANCE, *CLOSE SUPPORT), AVIATION PERSONNEL, TARGET ACQUISITION, ERRORS, VISUAL PERCEPTION, TRIANGULATION, FLIGHT TESTING, ANALYSIS OF VARIANCE

Subject Categories : Military Operations, Strategy and Tactics
      Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE