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 pilot's 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.


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    Title :

    Effects of Superimposing Symbology on a Simulated Night Vision Goggle Display


    Contributors:

    Publication date :

    1993


    Size :

    100 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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