在脉冲传输过程中,一般都不希望码元之间的干扰。消除这种干扰曾成为脉冲传输技术的主要研究目标之一。与此相反,也有特意利用这种干扰的编码形式,例如部分响应。所谓部分响应就是有意地附加码元之间的干扰,其结果使得传输信号的性质与传输线路的特性相适应。本文即介绍部分响应原理的提出、定义、分类以及所存在的问题与应用事例等。 In the pulse transmission process, generally do not want the interference between the symbols. Elimination of such interference has become one of the main research goals of pulse transmission technology. In contrast, there are also forms of encoding that specifically exploit this interference, such as partial responses. The so-called partial response is the intentional addition of interference between symbols, the result of which makes the nature of the transmitted signal compatible with the characteristics of the transmission line. This article describes the introduction of part of the response principle, definition, classification and the problems and application examples.