| 基于DSP的两路DVB条件接收系统的设计与实现 |
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| 引用本文： | 於辉,敖发良,石涛.基于DSP的两路DVB条件接收系统的设计与实现[J].电视技术,2010,34(2). |
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| 作者姓名： | 於辉 敖发良 石涛 |
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| 作者单位： | 桂林电子科技大学信息与通信学院,广西,桂林,541004 |
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| 基金项目： | 国家自然科学基金项目(60862001) |
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| 摘 要： | 简要介绍了机顶盒和条件接收系统的工作原理,针对如何在家庭中实现多台电视接收不同节目信号,提出了一种基于STi5518双解码数字电视机顶盒的设计。系统采用TDA8004作为智能卡与TMS320VC5410DSP通信的接口芯片,DSP通过缓冲串口与STi5518交换数据。实现了基于TMS320VC5410DSP芯片的2路数字电视条件接收系统的核心算法。
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| 关 键 词： | 机顶盒 条件接收 STi5518 TMS320VC5410 |
Design and Implementation of Two-channel DVB Conditional Access System Based on DSP |
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| YU Hui,AO Fa-liang,SHI Tao.Design and Implementation of Two-channel DVB Conditional Access System Based on DSP[J].Tv Engineering,2010,34(2). |
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| Authors: | YU Hui AO Fa-liang SHI Tao |
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| Affiliation: | School of Information and Communication Engineering;Guilin University of Electronic Technology;Guangxi Guilin 541004;China |
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| Abstract: | In this paper,the working principle of set-top box and conditional access system are introduced briefly.In order to realize multiple signals receiving for different televisions in the family,a design of dual-decoder set-top box based on STi5518 is proposed.TDA8004 is used as a communication interface chip between the DSP and smart card.And the DSP buffer serial port is used to exchange data with the STi5518.The core algorithm of two-channel digital TV conditional access system is realized based on TMS320VC5... |
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| Keywords: | set-top box conditional access STi5518 TMS320VC5410 |
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