Analysis of the influence of HUD brightness adjustment on pilots' information perception

Abstract: In order to study the visual effects of the external visual environment and HUD character brightness design on HUD information recognition, a 2×2 within-subject experimental design with two factors of character display brightness and environmental illumination was used, and the subjects were required to operate under experimental conditions. Complete the complete flight simulation process. The experiment collected subjects' performance data, SART scale data and physiological data. The experimental results show that the brightness factor is significant for the accuracy rate, and the environmental illumination factor is significant for the reaction time; among them, the environmental illumination factor is significant for the heart rate variability index SDNN, CV, and is borderline significant for the breathing index.

Keywords: HUD, situation awareness, display brightness, ambient illuminance

DOI: 10.54941/ahfe1005203

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