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数字catv
相关语句
  digital catv
     Ultra Wideband Technology Based on Digital CATV
     基于数字CATV的超宽带技术研究
短句来源
     Conditional Access of Digital CATV
     数字CATV的有条件接收
短句来源
     Simple Analysis of Primary Technology of the Digital CATV System
     数字CATV系统主要技术浅析
短句来源
     Implementation and Analysis of Front End Physical Layer in Dual Module STB for Digital CATV
     数字CATV双模机顶盒的前端物理层实现分析
短句来源
     From the paper, we can find that using HFC network can gradually offers the analogue CATV , digital CATV and interactive VOD, then bidirectional telephony and data transmission , and final target is full services SDV network which can be a base for realization FTTH in the future .
     可以看出,利用HFC接入方案,从最初传送模拟CATV业务,然后过渡到数字CATV业务和交互式VOD业务,再进一步开展双向话音和数据业务,最终可通过SDV网络形式实现视像\话音\数据等全业务的接入并为将来过渡到FTTH打下基础。
短句来源
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  “数字catv”译为未确定词的双语例句
     Basic Requirements for the Design of HFC CATV Link
     数字CATV光纤超干线传输
短句来源
     The conditional access system is both a foundation to develop the business value of digital television and an important technical system which would ensure the healthy development of digital television.
     有条件接收系统是开展数字CATV增值业务的基础 ,是确保数字电视健康发展的一个重要技术保障系统。
短句来源
     Owing to the particularity and importance of this system, the writer emphasized to introduce five prime techniques of the conditional access system.
     鉴于该类系统的特殊性和重要性 ,着重介绍了数字CATV有条件接收系统的 5项关键技术
短句来源
  相似匹配句对
     FIGURE
     数字
短句来源
     DIGIT
     数字
短句来源
     Conditional Access of Digital CATV
     数字CATV的有条件接收
短句来源
     Digital multimedia broadcasting system based on CATV
     基于CATV数字多媒体广播系统
短句来源
     THE CARRIER-TO-NOISE RATIO OF CATV SYSTEM
     CATV系统的载噪比
短句来源
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This paper describes the evolution process of a HFC network for accessing multi services by four stages. From the paper, we can find that using HFC network can gradually offers the analogue CATV , digital CATV and interactive VOD, then bidirectional telephony and data transmission , and final target is full services SDV network which can be a base for realization FTTH in the future .

分四个阶段讨论了利用HFC网络开展多业务接入的过程。可以看出,利用HFC接入方案,从最初传送模拟CATV业务,然后过渡到数字CATV业务和交互式VOD业务,再进一步开展双向话音和数据业务,最终可通过SDV网络形式实现视像\话音\数据等全业务的接入并为将来过渡到FTTH打下基础。

For the present, the high price of the specific de multiplexer/controller chips being used in the equipments designed for digital TV front end system, and the inflexible implementation scheme of the front end system are the important causes of the high price of the digital TV front end system. In the paper, it analyzes the defect existing in the QPSK/QAM trans modulator for digital CATV front end system, and brings forward a type of QPSK/QAM trans modulator based on universal DSP. The hardware of the...

For the present, the high price of the specific de multiplexer/controller chips being used in the equipments designed for digital TV front end system, and the inflexible implementation scheme of the front end system are the important causes of the high price of the digital TV front end system. In the paper, it analyzes the defect existing in the QPSK/QAM trans modulator for digital CATV front end system, and brings forward a type of QPSK/QAM trans modulator based on universal DSP. The hardware of the system is described and the key technology of the hardware design is pointed out, then the software design of the system is introduced. At last, the result of the implementation is introduced.

现行数字有线电视前端设备中通常采用的专用解复用 /控制芯片的价格昂贵以及前端系统实现方案不够灵活是数字电视前端系统成本居高不下的主要原因。文中分析了现行数字CATV前端数字卫星电视转发方案的不足 ,提出了一种基于通用DSP芯片的应用于数字有线电视前端的数字卫星电视QPSK/QAM调制转换器实现方案 ,介绍了系统硬件构成和设计的关键技术 ,以及系统软件设计特点、主软件设计流程及节目过滤器的软件设计流程 ,最后简述了系统的实现结果

The conditional access system is both a foundation to develop the business value of digital television and an important technical system which would ensure the healthy development of digital television. Owing to the particularity and importance of this system, the writer emphasized to introduce five prime techniques of the conditional access system.

有条件接收系统是开展数字CATV增值业务的基础 ,是确保数字电视健康发展的一个重要技术保障系统。鉴于该类系统的特殊性和重要性 ,着重介绍了数字CATV有条件接收系统的 5项关键技术

 
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