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

摘要

Sixteen USAF crew members participated in experiments evaluating cursor slewingperformance 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.