A code that provides an inherent method of correcting errors detected in received data. The process is termed forward error correction. Such a code provides for the introduction of redundant bits as necessary to make all correct bit patterns conform to a particular rule according to some algorithm. The hardware with which the code is used provides for the analysis of bit patterns that deviate from the rule in order to determine which bits are in error and to change them.; 用一定的方法糾正接收數(shù)據(jù)中錯(cuò)誤的一種代碼,糾錯(cuò)過程稱為前向糾錯(cuò)。主要為保證采用 冗余位能使所有的校正位模式按照某種算法與特定的規(guī)則相符合。使用這種糾錯(cuò)碼時(shí),硬件 對(duì)偏離規(guī)則的位模式進(jìn)行分析,以確定哪一位有錯(cuò)并加以糾正。