论文部分内容阅读
一、前言为改善通信的可靠性,各地都在研究纠错编码的应用。然而,在现实的通信系统中,为改善可靠性,这些码发挥了多大效果却无法断言。其主要理由是在码的设计阶段假想错误的统计特性与现实信道的错误统计特性间,存在着很大的差别。为此,在应用随机错误纠错码时,必须研究实际信道中的错误为何种形式,具有所谓的
I. Preface To improve the reliability of communication, all over the world are studying the application of error correction coding. However, in real communication systems, how effective these codes are, they can not be asserted in order to improve reliability. The main reason is that there is a big difference between the statistical characteristics of hypothetical errors and the statistical errors of the actual channels in the code design phase. For this reason, when applying a random error correction code, it is necessary to study what kind of error the actual channel is, having a so-called