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用实验方法研究了图形离散度与图形信号传信绩效的关系。实验的自变量为图形的离散度参数，取值范围为０．３－０．７。应变量为通道容量。实验的刺激信号为２５个矩形组合图形。结果表明，矩形组合图形的离散度与传信绩效的关系为一种非线性函数关系。离散度适中（０．５左右）的图形信号传信绩效较高，增大或减小图形的离散度均不利于信息的有效传递。
The relationship between the pattern dispersion and the performance of the graphic signal transmission was studied experimentally. Experimental variables for the graphics of the discrete parameters, the value range of 0.3-0.7. The dependent variable is the channel capacity. Experimental stimulus signals for the 25 rectangular combination of graphics. The results show that the relationship between the dispersion of the rectangular combination graph and the performance of the signaling is a nonlinear function. Discrepancies moderate (0.5 or so) of the graphics signal transmission performance is higher, increasing or decreasing the graphics of the dispersion are not conducive to the effective transmission of information.