| CAS在DVB系统中的软件实现方式 |
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| 引用本文： | 王骐,王青萍,王怀兴.CAS在DVB系统中的软件实现方式[J].西安航空技术高等专科学校学报,2011,29(3):44-47. |
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| 作者姓名： | 王骐 王青萍 王怀兴 |
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| 作者单位： | 湖北第二师范学院物理与电子信息学院,湖北武汉,430205 |
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| 摘 要： | CAS(条件接收系统)是DVB(数字视频广播)重要的组成部分。研究一种基于ALI工作平台的CAS系统。给出了CAS的组成结构和系统设计方案,重点论证其加解扰和加解密部分,应用C语言分析CAS的工作原理和实现过程,分析并解决实现过程中出现的问题。
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| 关 键 词： | 数字视频广播 条件接收系统 加解扰 加解密 C语言 |
Research on Software Realization of CAS IN DVB |
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| WANG Qi,WANG Qing-ping,WANG Huai-xing.Research on Software Realization of CAS IN DVB[J].Journal of Xi'an Aerotechnical College,2011,29(3):44-47. |
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| Authors: | WANG Qi WANG Qing-ping WANG Huai-xing |
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| Institution: | (Institute of Electronics Information and Physics,Hubei University of Education,Wuhan 430205,China) |
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| Abstract: | CAS(Conditional Access System) is an important component of DVB(Digital Video Broadcasting).This article will introduce an ALI-based CAS.and describes the composition structure and system design project,and focuses on the study of its encryption and decryption process,scrambling and descrambling process,and its working principle.At last,the article use C language to analyze the realization process and then solves and analyzes problems arising in the process of realization to achieve the desired function. |
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| Keywords: | DVB CAS scrambling-descrambling encryption-decryption C language |
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