| 释义 |
block code
(信息)分组［块］代码;［块码］
In data transmission, error control codes in which k parity bits check only the n information bits in an (n+k) bit block. Usually the information bits are transmitted first. The (n+k) bit block is also known as a code word, and each word can be independently decoded. Block codes are very suitable for use in error detection and retransmission systems since data is checked, detected and retransmitted in blocks.
数据传输过程中的错误控制码,其中k个奇偶校验位只校验(n+k)位信息块中的n个信息 位。通常,信息位首先被传输。(n+k)位信息块即一个代码字,每个字可以独立地译码。由于 数据以块为单位校验、检测和传输,因此,信息组代码非常适用于错误检测和重发系统。 |