Studies Leading to Standardization of Radar Symbology: III. Discrimination in Mixed Displays, Cathode Ray Tube Presentation.

Abstract

The report covers continued experiments toward standardization of radar symbology. Ten code complexes previously used in paper and pencil tests have been replicated on a cathode ray tube (CRT). Each code consists of five geometric symbols representative of a display vocabulary. Thirty subjects repeatedly selected individual symbols from a mixed display. Performance was measured in terms of errors and time to locate. The best and worst codes confirmed paper and pencil experiments previously reported. Times and errors were consistently greater on the CRT. Symbol characteristics contributing to reduced efficiency are analyzed and tentative rules for CRT symbols are presented. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1971
Accession Number
AD0738132

Entities

People

  • C. Jane Davis

Organizations

  • Human Engineering Laboratory

Tags

DTIC Thesaurus Topics

  • Cathode Ray Tubes
  • Discrimination
  • Efficiency
  • Electron Tubes
  • Electronic Equipment
  • Language
  • Social Problems
  • Standardization
  • Vocabulary

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Electronics Engineering
  • Systems Analysis and Design