循环冗余校验，中文名称为循环冗余校验（码）。它是一类重要的线性分组码，编码和解码方法简单，检错和纠错能力强，在通信领域广泛地用于实现差错控制。-Cyclic Redundancy Check, the Chinese name for the Cyclic Redundancy Check (code). It is important for a class of linear block codes, encoding and decoding method is simple, error detection and error correction capability, in the widely used communications error control implementation.