若输入信道的各符号等概出现，求该信道 的互信息量 • 画出不同信噪比下的互信息量变化的曲线， 以M为参数，画一簇曲线（其中加上一条 AWGN信道容量曲线作对比） • 调整函数a=f(x)，使当x=si时，a=iA‐b，b也为 一实常数，在A和 不变的情况下，互信息 量随b的变化情况是什么趋势？ • b的取值对互信息量随信噪比的变化曲线的 影响-If the input channel of the symbols, such as concept, for the channel mutual information- painting a different signal to noise ratio of the mutual information quantity curve, in M for parameters and draw a cluster of curves (which plus a AWGN channel capacity curves for comparison)- adjustment function a=f (x), so that when x =si. B a=iA-, B also is a real constant, unchanged in a and sigma, mutual information quantity changes with B is what trend? The influence of the value of B on the mutual information and the change curve of the signal to noise ratio