摘要
有线电视网络分布广、环境复杂 ,通信过程中难免受到干扰 ,目前在一些厂家内部协议中的数据校验纠错方法还比较传统 ,不能有效起到抗干扰的作用。为了提高通信的可靠性 ,值得关注和广泛应用的是一种简单而重要的通信差错控制技术———CRC。介绍了循环冗余校验CRC(CyclicRedundancyCheck)的差错控制原理和程序实现 ,并提出更具有实际应用价值的快速CRC算法的程序实现。
It is hard for the HFC network communication to avoid the disturbance caused by its wide-distributing and complicated environment. The traditional checkout method, which can not resist disturbance effectively is applied in the private protocols in some manufacturers. It is worth paying more attention to the simple and important technique of CRC. In this paper, we mainly discuss the theory of CRC and realization, and put forward a quick realization method of CRC.
出处
《中国有线电视》
北大核心
2004年第19期26-30,共5页
China Digital Cable TV
