Accession Number : AD0644933

Title :   BEARING AND RANGE ACCURACY OBTAINED BY TRACKING SIMULATED TARGETS WITH THE UNAIDED JOYSTICK -- MARKER CONTROL MECHANISM ON THE EXPERIMENTAL TARGET DESIGNATION EQUIPMENT,

Corporate Author : JOHNS HOPKINS UNIV BALTIMORE MD PSYCHOLOGICAL LAB

Personal Author(s) : Gebhard,J. W.

Report Date : 01 NOV 1950

Pagination or Media Count : 4

Abstract : The report presents the findings of an experiment designed to appraise the accuracy with which an operator can manually track a moving target by means of an electronic marker controlled by a joystick. Conclusions: (a) The average bearing error made in operating the ETDE under a number of conditions of course, speed, range, S/N ratio, and sweep rate is 1.22 degrees. (b) The average range error under the same conditions is 0.34 miles. In addition, the operators offered the opinion that it was easier to track fast targets than slow ones. They felt that more damping was needed in the manual-control mechanism for tracking low speed targets.

Descriptors :   (*TRACKING, ACCURACY), TARGET ACQUISITION, DISPLAY SYSTEMS, DIRECTION FINDING, RANGE FINDING, PERFORMANCE(HUMAN), ERRORS, HUMAN FACTORS ENGINEERING

Subject Categories : Direction Finding
      Human Factors Engineering & Man Machine System

Distribution Statement : APPROVED FOR PUBLIC RELEASE