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Defense Intelligence Reference Document Cognitive Limits On Simultaneous Control Of Multiple Unmanned Spacecraft

Defense Intelligence Agency · 31 pages · text from the file's own layer

This Defense Intelligence Reference Document, dated 15 December 2010, is a Defense Intelligence Agency report from its Advanced Aerospace Weapons System Applications (AAWSA) Program. It looks at how many unmanned spacecraft one human pilot could control during future deep-space missions, drawing on research into air traffic control and piloting of multiple unmanned vehicles. It concludes that the limits are about 16 craft for simple tasks, 7 for moderately complex tasks and 4 for complex mixed fleets. It adds that physiological measures can signal when an operator is overloaded.

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  • p. 5 …the focus of this paper as little work has been done in this specific area. However…
  • p. 6 …It is not a surprise that there is little work in this specific area - in fact…
  • p. 9 …The sympathetic system mediates response to stress, while the parasympathetic system works to maintain homeostasis and…
  • p. 13 …Only 1300 obeyed a Presidential order to return to work under the "peril to national safety…
  • p. 16 …during the 8-hour workday, night time after work. Additionally, controllers completed the State- Trait Anxiety…
  • p. 18 …time, an observation they note confirms earlier work on F4 crew members performing flight tasks of…
  • p. 21 …model with the SME approach doesn't work for predicting workload in the ATC task. 39…
  • p. 22 …it is intended for the pilot to work alongside the automation rather than rely on it…
  • p. 25 …This measure is called utilization and previous work in systems engineering 48 and queuing theory has…
  • p. 27 …The number of four is consistent with standard estimates of human working memory being able to…
  • p. 28 …picture can be maintained, even with external working memory augmentation, for more than about 16 objects…
  • p. 29 …Vigilance requires hard mental work and is stressful. Hum Factors 50, 433-441 (2008). 14 Dussault…
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decrease between single and dual control cases. The authors attribute this to the UAV
interface complexity of 4 screens per vehicle. The authors conclude that further study is
required in augmentation strategies and system development. 46
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Figure 6. Examples of Unmanned Military vehicles: (left to right, top to bottom) Predator, Global Hawk, Fire
Scout, Bell Eagle, BAE Mantis, rendering of an airwing of mixed UAVs, Tomahawk cruise missile, remote ground
vehicles, and the Raven.
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Report, from the dia collection. The PDF is mirrored here; the original link is under it. 31 pages are in the text index: search them above, or from the library's search.