Abstract
This paper mainly discusses and analysises the calculation method of rate-distortion function, and to simulate by using mathematics software MATLAB(Matrix Laboratory). Information Theory is an Applied Mathematics which uses probability theory and mathematical statistics methods to do study. As people continue to deepen the understanding and use of information, information science is applied in many aspects. However, in actual communication, distortion-free communication is impossible, and not necessary, therefore, this paper proceed from the discrete source to discuss the information transfer process and feature of the stationary memoryless source, and analysis the Minimum information rate of information Source when limit distortion is the maximum allowable distortion D. It is complex to calculate the information rate distortion function R (D) of general discrete source, in this paper, the iterative algorithm with parameters is used to calculate the R(D), introduces general methods to calculate the R(D) which using iterative algorithm with parameters. MATLAB is a mathematics software which applied in algorithm development, data visualization, data analysis and numerical calculation, in this paper, the calculation of information rate distortion function of discrete source is realized by programming.
Keywords：Discrete source Rate-distortion Iterative algorithm MATLAB
