Dr. Louis J. Glaab Profile

Dr. Louis J. Glaab

at NASA Langley Research Ctr

SPIE Involvement:

Author

Publications (2)

Proceedings Article | 27 April 2007 Paper

Synthetic vision systems: operational considerations simulation experiment

Lynda Kramer, Steven Williams, Randall Bailey, Louis Glaab

Proceedings Volume 6559, 655903 (2007) https://doi.org/10.1117/12.717684

KEYWORDS: Heads up displays, Fourier transforms, Light sources and illumination, Synthetic vision, Visualization, Visibility, Navigation systems, Databases, LCDs, Safety

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Proceedings Article | 25 May 2005 Paper

Initial development of a metric to describe the level of safety associated with piloting an aircraft with synthetic vision systems (SVS) displays

Anthony Bartolone, Louis Glaab, Monica Hughes, Russell Parrish

Proceedings Volume 5802, (2005) https://doi.org/10.1117/12.605247

KEYWORDS: Safety, Electronic support measures, Control systems, Prototyping, Synthetic vision, Visibility, Cockpit displays, Manufacturing, 3D displays, Visualization

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Synthetic Vision Systems (SVS) displays provide pilots with a continuous view of terrain combined with integrated guidance symbology in an effort to increase situation awareness (SA) and decrease workload during operations in Instrument Meteorological Conditions (IMC). It is hypothesized that SVS displays can replicate the safety and operational flexibility of flight in Visual Meteorological Conditions (VMC), regardless of actual out-the-window (OTW) visibility or time of day. Throughout the course of recent SVS research, significant progress has been made towards evolving SVS displays as well as demonstrating their ability to increase SA compared to conventional avionics in a variety of conditions. While a substantial amount of data has been accumulated demonstrating the capabilities of SVS displays, the ability of SVS to replicate the safety and operational flexibility of VMC flight performance in all visibility conditions is unknown to any specific degree. The previous piloted simulations and flight tests have shown better SA and path precision is achievable with SVS displays without causing an increase in workload, however none of the previous SVS research attempted to fully capture the significance of SVS displays in terms of their contribution to safety or operational benefits. In order to more fully quantify the relationship of flight operations in IMC with SVS displays to conventional operations conducted in VMC, a fundamental comparison to current day general aviation (GA) flight instruments was warranted. Such a comparison could begin to establish the extent to which SVS display concepts are capable of maintaining an “equivalent level of safety” with the round dials they could one day replace, for both current and future operations. Such a comparison was the focus of the SVS-ES experiment conducted under the Aviation Safety and Security Program's (AvSSP) GA Element of the SVS Project at NASA Langley Research Center in Hampton, Virginia. A combination of subjective and objective data measures were used in this preliminary research to quantify the relationship between selected components of safety that are associated with flying an approach. Four information display methods ranging from a “round dials” baseline through a fully integrated SVS package that includes terrain, pathway based guidance, and a strategic navigation display, were investigated in this high fidelity simulation experiment. In addition, a broad spectrum of pilots, representative of the GA population, were employed for testing in an attempt to enable greater application of the results and determine if “equivalent levels of safety” are achievable through the incorporation of SVS technology regardless of a pilot's flight experience.

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