一种实用的有线电视加解扰方案

A Practical Scheme on the Scrambling and the Descrambling of CATV

在分析了电视加扰技术中的模拟加扰方式和数字加扰方式后，对数字加扰时基处理中的行旋转、行置换、行变换等方法做了详细分析；为了保护有线电视加扰系统的安全，采用了随机数的产生、数据的加密等技术。最后详细介绍了一个包括加。

After analying the analogic and digital scrambling ways,line rotation scrambling,line jitter scrambling,line permutation ways of digital scrambling processing are discussed in detail.In order to protect CATV scrambling system,random number generator and data encryption techniques are used.At the end of the paper,an experimental system is described which includes the scrambling system,descrambling system and the controls of users.