Display Design for Electronic Countermeasures Application--Scope Size and Threat Density.
Final technical rept. Oct 70-Jan 71,
AEROSPACE MEDICAL RESEARCH LAB WRIGHT-PATTERSON AFB OHIO
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Subjects were required to identify threat symbols on a simulated electronic countermeasures ECM scope display while performing a single-axis, first-order, unstable compensatory tracking task. Performance with 3- and 4-inch-diameter display scopes was compared. A repeated-measures experimental design was used involving two different 30-minute test missions -- each varying in threat density from 0 to 18. Twenty right-handed male college students served as subjects. By comparing subject performance at the various threat densities it was determined that 7 was the maximum number of threats that a subject could effectively process with each scope size. Results showed no statistically significant difference in performance between the 3-inch and the 4-inch scopes. Author
- Personnel Management and Labor Relations
- Human Factors Engineering and Man Machine Systems