Perception Coherence Zones in Flight Simulation

摘要

The development and tuning of flight simulator motion filters relies on understanding human motion perceptionnand its limitations. Of particular interest to flight simulation is the study of visual-inertial coherence zones.nCoherence zones refer to combinations of visual and inertial cues that, although not being physically coherent, stillnprovide the pilot with the perception of a congruent motion, indicating a realistic simulation. Coherence zones havenbeen measured before during passive tasks, for predetermined stimuli. During a pilot-in-the-loop simulation,nhowever, the type of inertial and visual cues being provided are considerably influenced by the pilot’s controlnstrategy. For this reason, it is important to understand how the amplitude and frequency content of the stimuli affectnthe perception of a coherent motion. Three experiments were performed to measure the effect of cue amplitude andnfrequency on yaw perception coherence zones. In accordance with previous research, themeasured coherence zonesnwere generally wider for higher amplitudes of the visualmotion cue. At higher amplitudes of the visual cue, subjectsnpreferred inertial motion amplitudes that were lower than the visual cue amplitude. The stimulus frequency wasnshown to have an effect on the coherence zones. For a higher frequency stimulus the preferred inertial motionnamplitudeswere significantly lower than for a lower frequency stimulus. These results are explained using amodel ofnthe semicircular canals dynamics.