Abstract
Eight signal-to-noise ratios and four target accelerations were systematically varied in an attempt to determine functional relationships between these parameters and measures of time-on-target, frequency of target loss and the average duration of each loss on an A-scope compensatory tracking task. Nine Si were required to maintain a triangular pulse in the center of a stationary notch by manipulating a velocity controlled handwheel. The results indicated that visual noise had a pronounced effect upon time-on-target, but the effects of target acceleration were negligible. However, target acceleration had a pronounced effect upon frequency of losing target track and both parameters affected average duration of a loss. The results are discussed in terms of analyzing system performance.
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