A Study on the Effects of Continuous Wave Jamming on the Detection of Anti Aircraft Operations Center Symbols

摘要

Detection time was studied for four geometric shapes, considered for adoption as Antiaircraft Operations Center Symbols, that were exposed to three degrees of simulated continuous wave jamming. The shapes studied were the Circle, Cross, Half Circle and Cross-Within-Circle. Their diame¬ters remained constant at 5/l6. The shapes were generated electronically on a Planned Position Indicator display.nDetection time increased for all four symbols as the intensity of continuous wave jamming increased, hut this increase was not significant for the increase from the no noise to the mild noise level. All symbols, except for the Cross, had approximately the same detection time for each of the three noise levels. Any differences were not significant.nThe number of errors made by the subject were small and did not show any trend.