Accession Number:

AD0688125

Title:

RADAR SYMBOLOGY STUDIES LEADING TO STANDARDIZATION: II. DISCRIMINATION IN MIXED DISPLAYS

Descriptive Note:

Technical memo.

Corporate Author:

HUMAN ENGINEERING LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

Report Date:

1969-03-01

Pagination or Media Count:

87.0

Abstract:

The report covers continued studies toward standardization coding symbols for an information display. Experiments were directed toward locating the most readily discriminated five-symbol code complex as measured by errors and location times. Experiment 1 attempted to simplify testing procedures by using a card sorting task. The same five-symbol code was presented as a black- on-white simulated display in Experiment 2. Results were not comparable and the simulated display was used in further experiments with a variety of codes. Legibility and association values of individual forms varied with the population of shapes within the code complex. Experimental results led to general recommendation for code design.

Subject Categories:

  • Printing and Graphic Arts
  • Human Factors Engineering and Man Machine Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE