Display Design for Electronic Countermeasures Application--Scope Size and Threat Density.
Abstract
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1971
- Accession Number
- AD0731186
Entities
People
- David E. Thorburn
- Earl D. Sharp
- John P. Lyons
- William N. Kana
Organizations
- Air Force Research Laboratory