说明：  分析了离散无记忆信道(DMC)模型概率特征及Blahut-Arimoto算法,用matlab实现了可控制精度的DMC容量迭代计算。
(Analysis of the discrete memoryless channel (DMC) model probability characteristics and Blahut-Arimoto algorithm, using matlab to achieve the capacity to control the accuracy of the DMC iteration.)