The Effects of Superimposing Symbology on a Simulated Night Vision Goggle Display
ANACAPA SCIENCES INC FORT RUCKER AL
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The U.S. Army is acquiring a system that superimposes instrument symbology on night vision goggle NVG imagery. However, previous research indicates that the symbology may distract a pilots attention from obstacle detection, recognition, and avoidance and may interfere with proper scanning patterns. To test the effects of combining imager and symbology, 36 helicopter pilots were presented night-flight scenarios simulating NVG imagery only, symbology only, and imagery plus symbology. The aviators were required to monitor and respond to predefined scene and symbology targets. They detected and responded rapidly to a high percentage of targets when viewing the scene-only and symbology-only scenarios. Their performance decreased significantly when the two types of information were presented together, but the decrease was small when compared to the increased amount of information available in the display. Aviator performance improved with practice and was related to experience and eye dominance. The aviators suggested several modifications for the symbology suite.
- Optical Detection and Detectors