Modeling Pilot Performance under Degraded Visual Environment

摘要

Army Aviation mission scenarios have inherent risks associated with them and risks are amplified under degraded visual environment (DVE) flight conditions. As part of the Aviator Risk Assessment Model (AvRAM), DVE obscurants (i.e., rain, fog, dust, smoke, and snow) have been modeled using published sensor penetration data for visible, infrared, and lower frequency bands. Visibility calculations as well as time and distance calculations for target detection were performed for different sensor configurations and sensitivities, environmental conditions, and airspeed. The AvRAM includes a simplified target identification paradigm that incorporates probability of correct identification as a function of distance and time.