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人类社会的生存和发展离不开对信息的获取、传递、处理、再生、控制和利用。尤其在人类进人高度信息化的21世纪以来,移动、互联网通信,多媒体、计算机和空间技术等信息技术获得了人类难以想象的发展。这些应用领域中,只要是涉及信息的存储、传递和处理就要用到Shannon信息理论,人们对于信息的概念和基本理论已不再感到陌生、抽象和难以理解,并开始意识到学习和掌握信息理论的重要性。在此形势下,信息论与编码作为信息与计算科学专业的一门重要的专业课,其课程内容主要是运用概率论与数理统计的方法来研究信息、信息熵、通信系统、数据传输、密码学、数据压缩等问题,从而提高信息系统的可靠性、有效性、保密性和认证性,使得信息系统达到最优化。
The survival and development of human society can not be separated from the acquisition, transmission, processing, regeneration, control and utilization of information. Especially in the 21st century when human beings have entered a highly informatized society, the information technology such as mobile, Internet communications, multimedia, computer and space technology has gained unimaginable human development. In these fields of application, Shannon’s information theory is used as long as it involves the storage, transmission and processing of information. People no longer feel strange, abstract and difficult to understand the concepts and basic theories of information, and begin to realize that learning and mastering information The importance of theory. Under this circumstance, information theory and coding, as an important specialized course of information and computing science, mainly uses the methods of probability theory and mathematical statistics to study information, entropy, communication system, data transmission, cryptography, Data compression and other issues, thereby improving the reliability, effectiveness, confidentiality and certification of information systems, making the information system to optimize.