Human Factors in the Design of Tactical Display Systems for the Individual Soldier (1995) / Chapter Skim
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Overview and Summary
Pages 1-8
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The land warrior helmet-mounted displays are to serve several functions: output and control of the thermal weapon sight; reception of navigation information, such as maps and current location from the global positioning satellite system; and venous command and control functions, such as messages regarding danger and troop movements. Interest and plans for providing individual, dismounted soldiers with new tactical information systems has been partly motivated by combat experiences in recent conflicts.
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For example, a particular category of information may call for a format that is not compatible with an otherwise promising display device. THE PANEL'S TASK The charge to the panel is to examine the relationship among the tactical information needs of individual soldiers; the possible devices available now or in the near future for processing, transmitting, and displaying such information; and the human performance implications of the use of such devices.
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For some other criteria (e.g., the extent to which the degraded resolution drastically diminishes depth cues and greatly reduced field of view restricts performance) , particularly those that are tied to specific combat missions and conditions, new field research will be needed to provide a solid base of evidence for future engineering design decisions.
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The relative likelihood of this configuration working well or working better than the monocular option could be determined by human factors analysis, and its actual superiority or inferiority could be determined by narrowly targeted field experiments. Another feature of the second approach is that it can be used to generate rich data about individual differences.
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· The And Warrior System and its head-mounted display system must be systematically tested in a range of realistic battle conditions, not only to aid th development and refinement of employment doctrine, but also to validate technical capabilities, system performance, and development priorities. · To achieve the expected enhancements in performance, the And Warrior System and its head-mounted display must be compatible with the mental, psychological, and physical characteristics of the infantry soldier.
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These problems may be reduced by using the system in an intermittent fashion or by designing a fully synthetic environment. · Opaque monocular displays and see-through displays can lead to loss of stereoscopic depth perception.
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The second phase of the present project should help establish the priority level of design option testing and the methodological framework that will enable effective field research. From a research perspective, much of what is known about visual performance comes from laboratory investigations using standard, highly simplified visual tasks.
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From page 8... ...
Research plans should include procedures for detecting design features that might actually support situation awareness by directing the soldiers' attention to salient aspects of a scene or circumstance that otherwise might be missed. Implications for doctrine, personnel selection, training, and employment concept are significant.
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