信息率失真函数的迭代计算 信息率失真函数的迭代计算，迭代精度取为10^(-7) 在信源的输入概率分布Pa和失真矩阵d已知的条件下求出信息率失真函数 函数说明： [Pba,Rmin,Dmax,Smax]=RateDF(Pa,d,S) 为信息率失真函数 变量说明： Pa：信源的输入概率矩阵，d：失真矩阵，S：拉氏乘子 Pba：最佳正向转移概率矩阵， Smax：最大拉氏乘子 Rmin：最小信息率，Dmax：允许的最大失真度-Information on the calculation of the rate-distortion function iteration iterative information rate-distortion function calculations, iterative precision is taken as 10 ^ (-7) in the source input probability distributions Pa and distortion matrix d information obtained under conditions known rate-distortion Function Descr iption : [Pba, Rmin, Dmax, Smax] = RateDF (Pa, d, S) for the information rate-distortion function variables Descr iption: Pa: source input probability matrix, d: distortion matrix, S: Lagrange multiplier Pba: most the maximum allowable distortion: Best forward transition probability matrix, Smax: maximum Lagrange multiplier Rmin: minimum information rate, Dmax