Accession Number : ADA301662

Title :   Operator Cursor Positioning Performance On Navigational Update and Targeting Tasks: Evaluation of Gain Functions for the B-2 Radar-Embedded Cursor System.

Descriptive Note : Interim rept. Jun 94-Jan 95,

Corporate Author : SCIENCE APPLICATIONS INTERNATIONAL CORP MCLEAN VA

Personal Author(s) : Doyal, Jeffrey A. ; Irvin, Gregg E. ; Ramer, David P.

PDF Url : ADA301662

Report Date : APR 1995

Pagination or Media Count : 92

Abstract : Sixteen USAF crew members participated in experiments evaluating cursor slewing performance with the B-2 radar-embedded cursor system. Performance was evaluated with the current linear force/cursor velocity function and an alternative sigmoidal function expected to elicit improved performance. One experiment utilized a radar update task requiring only fine positioning movements of the cursor. The second experiment consisted of a semi-operational targeting task in which both gross and fine positioning movements of the cursor were required. In addition, the effects of ambiguity of the target pixel and variability in cursor system processing delay were examined. In both experiments, the alternative gain function elicited lower designation time and fewer overshoots than the current function.

Descriptors :   *FLIGHT CREWS, *JET BOMBERS, *RADAR EQUIPMENT, *AIRCRAFT EQUIPMENT, *SYMBOLS, *AIMING, *SLEWING, *SCREENS(DISPLAYS), POSITION(LOCATION), IMPACT, PERFORMANCE(HUMAN), ACCURACY, PROTOTYPES, SYNTHETIC APERTURE RADAR, TARGETS, TIME, AIR NAVIGATION, POSITION FINDING, GLOBAL POSITIONING SYSTEM, ERRORS, GAIN, TARGETING, AMBIGUITY.

Subject Categories : Bombers
      Computer Programming and Software
      Human Factors Engineering & Man Machine System

Distribution Statement : APPROVED FOR PUBLIC RELEASE