Enhanced vision simulator for human factors evaluations

James M. Suiter

doi:10.1117/12.210965

5 June 1995 Enhanced vision simulator for human factors evaluations

James M. Suiter

Proceedings Volume 2462, Cockpit Displays II; (1995) https://doi.org/10.1117/12.210965
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

Abstract

A low-cost Operational Development and Evaluation System (ODES) was developed for evaluating and demonstrating Head Up Display (HUD) technology, including projected out the window graphics. This consisted of commercial workstations and PC's, a prototype autopilot control panel and an engineering F-15 HUD unit. Software utilized functional partitioning to provide maximum flexibility for modification, expansion and rehosting of software functions. For human factors evaluation of Enhanced Vision Systems (EVS), a real-time simulation was needed for subjects to respond to. Real-time simulated enhanced vision, such as that using millimeter wave radar, is not possible without supercomputers or oversimplification of the radar simulation. We solved this problem by defining operational scenarios for evaluation, generating the EVS radar simulation off-line, transferring simulation run results to a Silicon Graphics (SG) machine for B-scope to C-scope conversion and contrast enhancement and recording the SG images on an optical disk, a frame at a time. For real-time simulation, an ODES system was modified to control the playback of the optical disk recorder through the HUD raster subsystem in coordination with the aircraft model position as driven by the autopilot. The system was first put to use in a study of EVS raster obscuration issues.

Citation Download Citation

James M. Suiter "Enhanced vision simulator for human factors evaluations", Proc. SPIE 2462, Cockpit Displays II, (5 June 1995); https://doi.org/10.1117/12.210965

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KEYWORDS

Heads up displays

Visualization

Radar

Computer simulations

Extremely high frequency

Enhanced vision

Optical discs

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