TD-951型可寻址加解扰付费电视系统  

Addressable scrambling/descrambling pay TV system TD 951

作　　者：郭福云[1] 刘国威 郑伟 范家华 

机构地区：[1]天津大学电子系

出　　处：《电视技术》1997年第9期35-38,共4页Video Engineering

摘　　要：介绍一种具有优良性能价格比的多模式可寻址加解扰付费电视系统，本系统引入了较长周期的伪随机序列作为加扰控制序列，使加扰图象具有较好的还原性和较强的隐匿性。该系统经过广电部检测中心的测试和上网试验，指标符合ＧＹ／Ｔ１１４国家行业标准。This paper presents a multi mode addressable scrumbling/descrumbling pay TV system with excellent cost effectiveness.Psudeo random sequence with relatively long cycle is introduced as scrumbling/descrumbling control sequence in this system so that scrumbled pictures have better recovery ability and hiding power.The system has been tested by the test center of the Ministry of Radio,TV and Films,and it is in compliance with Chinese industrial standard GY/T114.

关 键 词：有条件接收 付费电视系统 可寻址 加解扰 

分 类 号：TN948.1[电子电信—信号与信息处理]