基于OFDM的数字电视传输系统由纠错处理和数字调制等组成。
Digital television transmission system based on the OFDM consists of Error correction processing and digital modulation parts etc.
在分析HFC与EPON有关性质的基础上，提出基于EPON的数字电视传输方法。
On the basis of analyzing HFC and EPON, the method of digital television transmission over EPON is proposed.
与有线数字电视和卫星数字电视相比，地面数字电视传输系统中的信道环境要复杂的多。
Compared with cable digital TV and satellite digital TV, channel to the environment of terrestrial digital TV transmission system is more complex.
在MPEG - 2标准的基础上，分析了PCR在数字电视传输系统中产生抖动的原因和校正的方法。
Based on the standard of MPEG-2, the cause of PCR jitter and PCR correction method in Digital Television Transmission System are analyzed.
本文主要讨论了世界上流行的数字电视传输系统的组成和关键技术，研究了DVB系统的技术规范和性能特点。
This thesis mainly discusses the key technology and line transmission system of the popular digital TV in the world now, research DVB technical specification and performance characteristic of system.
这不是“数字电视”——模拟的组合视频信号变为数字信号以利传输，由变回到模拟信号用以在模拟电视机上显示图像。
This is not "digital television" — it is a normal composite video signal for analog television converted to a digital format for transmission and then converted back to analog for display.
目前我国已有有线数字电视、地面数字电视和IPTV三种数字节目传输方式。
At present our country has cable digital TV, digital terrestrial television and IPTV three digital transmission program.
卫星将于北京奥运会前开始传输数字电视信号，届时数千万家庭将可直接收看奥运会盛况。
Satellite will be in before the Beijing Olympic Games begin transmitting digital television signal, when tens of millions of families will be directly to watch the Olympics.
数字电视是一个从节目采集、节目制作、节目传输到用户端接收机都要以数字方式处理信号的端到端的系统。
Digital TV is an end to end system whose signals need to be handled in digital in program collection, program production, program transmission and terminal receiver.
论述数字电视系统的关键技术，对传输码流参数进行分析，提出码流分析仪在有线数字电视系统中的应用方法。
The paper discusses key technologies of the digital television system, analyzes the TS parameters and clarifies the application methods of Transport Stream Analyzer in digital cable television system.
讨论有线电视网络中传输数字电视存在的问题，并对HFC网络建设和维护等技术问题进行探讨。
This article discusses some problems of wired television network in the transmission of digital TV, probes into some technical aspects in the construction and maintenance of HFC network.
本文研究了网络传输协议、数字电视传送流及业务信息，设计并实现了SI引擎。
Studing the transfer protocol, DTV transport stream (TS) and SI, a SI Engine is designed and implemented.
提出了建设数字电视专用传输网和广播电视管理网的建议。
Put forward an advice to building a special transmission network only transmit digital TV and another one for broadcasting TV management network.
RS编码在数字电视广播传输系统中应用广泛。
本文将在两种网络的传输途径、网络的管理运营以及网络的传输能力等方面，对数字电视和网络电视的信道方面进行比较。
In this article we will compare the Digital TV and IPTV in the transmission routes, managements and operation of networks and the capacity of transmission etc.
信号调制是数字电视前端最后的一个物理环节，直接决定信号在网络中传输的质量。
Signal modulation is the last physical part of DTV Front-End, which directly determines the quality of network transmission.
数字电视广播主要通过卫星、有线及地面三种传输方式实现。
Digital television broadcasting has three main types: terrestrial, satellite, and cable-based digital TV.
结合广东有线数字电视干线传输平台建设，详细介绍了MSTP技术在DVB干线传输中的应用。
Combined with the construction of DVB platform in Guangdong Province, the application of MSTP in DVB trunk transfers is introduced in detail.
利用PDH/SDH网络传输MPEG-2码流，是数字电视广播的一种解决方案。
Transportation of MPEG-2 stream over PDH/SDH is a solution for digital video broadcasting.
数字电视是较为成熟和先进的信息传输技术，详细介绍一种通过数字电视系统传输数据的方法。
Digital TV is a very valid technique for information transfer. This paper introduces a method of data transfer by digital TV system.
目前数字电视的最大问题是传输码率太高，传输频带太宽。
The present biggest problem of the digital TV is too big transmission bit rare and too wide trans mission band.
有些人认为数字电视比卫星电视好，因为传输同样的图像时数字电视的画面要比以前更为清晰。
Some consider digital TV to be superior to satellite TV because it allows the same services to be delivered with clearer pictures than before.
文章在分析地面传输信道特性的基础上，介绍了地面广播数字电视的DVB - T标准，探讨了其核心的正交编码频分多路复用COFDM技术、前端发射设备的系统结构及其优缺点。
Base on the analysis of terrestrial transfer channel, the paper introduces the DVB-T standard, and discuss the core COFDM technology as well as front-end transmit system structure.
MPEG 2标准系统层中定义的传输流已经在事实上成为数字电视领域中系统层传输的普遍标准。
Transport stream defined in MPEG-2 standards now has become a general standard in digital TV field.
基于对数字电视地面传输系统复杂度和性能代价的综合考虑，提出以符号变换为基础的IC I自消除模块替换卷积码模块。
Based on synthesis consideration of complexity and performance cost, this paper proposed a modified scheme of using the ICI self-cancellation module to replace the convolutional coding module.
有些人认为数字电视要比卫星电视好。因为传输同样的图像时数字电视的画面要比以前更为清晰。
Some consider digital TV to be superior to satellite TV because it allows the same services t0 be delivered with clearer pictures than before.
IPTV与DVBTV都是数字电视，尽管其传输形式不同，但需要同样的市场推广动力和运营平台。
The transport protocol for IPTV is different from that for DVBTV, but they depend on the same market promotion dynamics and service operation platform.
仿真结果表明，本文提出的算法即使在很高的数据差错率情况下，仍然可以实现地面数字电视广播系统中可靠而高效的视频传输。
Extensive simulations have verified that, even with high packet error rate, the proposed scheme may achieve efficient and robust video broadcasting over DTTB systems.
讲述了地面数字电视广播系统中工作模式满足业务要求，传输覆盖网的运行良好，对保证接收质量重要，更保证覆盖网正常运行。
Tells the terrestrial digital broadcast system work mode, satisfy business, Transmission network operation is good, To ensure quality of receiving, More guarantee network normal operation.
讲述了地面数字电视广播系统中工作模式满足业务要求，传输覆盖网的运行良好，对保证接收质量重要，更保证覆盖网正常运行。
Tells the terrestrial digital broadcast system work mode, satisfy business, Transmission network operation is good, To ensure quality of receiving, More guarantee network normal operation.
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