| 数字视频广播条件接收 |
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| 引用本文： | 丁莉.数字视频广播条件接收[J].中国传媒大学学报,2002,9(4):56-61. |
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| 作者姓名： | 丁莉 |
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| 作者单位： | 北京广播学院,电子与信息工程系,北京,100024 |
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| 摘 要： | 条件接收是数字视频广播中极其缩、复用、智能卡、机项盒等技术,实现对用户的授权控制和授权管理.本文主要分析了数字视频广播的条件接收系统.
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| 关 键 词： | 条件接收 加扰 解扰 加密 解密 控制字 |
| 文章编号： | 1007-8819(2002)04-0056-06 |
| 修稿时间： | 2002年5月22日 |
Conditional Access in the Digital Video Broadcasting |
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| DING Li.Conditional Access in the Digital Video Broadcasting[J].Journal of Communication University of China Science and TEchnology,2002,9(4):56-61. |
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| Authors: | DING Li |
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| Abstract: | Conditional access plays an very important role in the digital video broadcasting. It realizes subscribers' authority and management with technologies of scrambling/descrambling, encryption/decryption, digital video/audio compression and complex, smartcard, STB and so on. This paper analyzes the basic theory of conditional access system in the digital video broadcasting. |
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| Keywords: | CA Scrambling Descrambling Encryption Decryption CW |
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