几个检错码和分组码技术详解

Several Error Detection Code and Block Code Technology Explained

编码技术是保障通信信道顺畅的关键技术。奇偶校验码只能发现奇数个错误，不能发现偶数个错误。奇偶校验适合于单独偶发的错码。对于长度不大于列长的突发错误，我们可以用水平一致校验码。方正码除了可以检测出奇数个错误，也有可能发现偶数个错误。G矩阵或H矩阵可以进行线性分组码的编码和译码。

Coding techniques to protect the communication channel is smooth key technologies. Parity-check codes can only be found in odd mistake and can not find even a mistake. Parity for the occasional error in a separate code. For the length of not more than a long burst errors out, we can use the same standard checksum. Founder surprisingly few yards apart can detect an error, but also may find that even a mistake. G matrix or H matrix can be linear block code encoding and decoding.