Design of CATV Scrambling and Descrambling System Based on Pseudo-random Algorithm
Xijun Liu · Video Engineering · 2011
The method based on pseudo-random linear superposition algorithm produce a variety of code for scrambling RF of CATV which is presented in this paper.Design and realization of hardware and software of scrambler and descrambler are described in detail,control and management of descrambler are completed through the host computer management system,the problem of high cost and poor security in scrambling system of CATV at present is solved.This system is successfully applied in many regions,and it has good practical value.