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10 June 1994 Helmet-mounted display symbology for automated nap-of-the-earth rotorcraft flight
Richard A. Coppenbarger
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Proceedings Volume 2218, Helmet- and Head-Mounted Displays and Symbology Design Requirements; (1994) https://doi.org/10.1117/12.177379
Event: SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, 1994, Orlando, FL, United States
Abstract
Helmet-mounted display (HMD) symbology for an automated Nap-of-the-Earth (NOE) guidance and control system is described. In the automated system, referred to as Pilot-Directed Guidance (PDG), pilot control inputs are interpreted as high-level velocity commands to an inner-loop guidance and control system that is responsible for obstacle detection and avoidance maneuvering. The success of the PDG concept has been shown to be highly dependent upon the intelligent use of inertially stabilized symbology to provide navigational information and velocity command feedback to the pilot. Individual symbol functions and drive laws are described along with the associated display difficulties encountered at NOE airspeeds and altitudes. The important findings of a fixed base simulation experiment, relating to the use of HMD symbology, are given along with pilot commentary and opinion.
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Richard A. Coppenbarger "Helmet-mounted display symbology for automated nap-of-the-earth rotorcraft flight", Proc. SPIE 2218, Helmet- and Head-Mounted Displays and Symbology Design Requirements, (10 June 1994); https://doi.org/10.1117/12.177379
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KEYWORDS
Head-mounted displays
Control systems
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