21st Congress of International Council of the Aeronautical Sciences, Melbourne, Australia, 13-18 September, 1998
Paper ICAS-98-1.8.3

APPLICATION OF GROUND COLLISION AVOIDANCE SYSTEM NUISANCE CRITERIA

Huffman R., Skoog M., Pineiro L.* Ferm M.**
Edwards AFB, USA; *Wright Patterson AFB, USA; **DMA, Sweden

Keywords: ground collision avoidance system, nuisance criteria

The United States Air Force has been actively pursuing ground collision avoidance system technology for the past decade. Despite this effort, controlled flight into terrain remains the number one cause of aircraft loss in the United States Air Force. Research suggests the primary limitation of current ground collision avoidance system technology is the excessive occurrence of nuisance warnings. Pilots quickly learn to ''tune out" ground collision avoidance system warnings or turn the systems off entirely to avoid these false warnings. Currently, only one criteria exists to indicate the threshold between valid warnings and those that will be considered nuisances by the pilots. The purpose of this paper is to demonstrate how to apply this criteria to a ground collision avoidance system.

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