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.
文章结合永济市前端机房卫星接收设备，介绍了卫星数字电视节目接收和故障分析排查方法。
Taking the satellite reception equipment of the front room of Yongji City, the article introduces the reception of digital satellite TV programs and checking and analyzing methods of faults.
DVB-S2是第二代卫星数字电视广播标准，其性能如此优异的一个重要原因就是采用了LDPC码方案。
Research results show that LDPC code's performance is better than Turbo code, and more approaching the Shannon limit. DVB-S2 is the next generation standard of the digital satellite broadcasting.
分析卫星数字电视接收系统的性能以及卫星数字电视接收机中R-S解码器、卷积解码器和QPSK解调器等部分电路对系统抗噪声性能的贡献。
This paper analyses the anti-noise performance of digital satellite TV receiver system, and discuses the anti-noise capability of R-S decoder, of convolutional decoder and of QPSK demodulator.
新型专业卫星数字电视解码器(IRD)通过运行防止非法信号干扰的软件，实时分析卫星数字电视信号的特征，从而提前发现外来非法干扰信号并实施预警。
New type of professional IRD, by running the software for preventing the illegal interfering signal, IRD analyzes the characteristic of satellite DTV signal in real time, then found external illegal.
有了网上点播、数字电视及卫星电视等多种价廉物美的视频服务，本行业只能在互联网这一洪水猛兽面前瑟瑟发抖。
The industry has been threatened by the internet which provides instant online access, digital cable and satellite providers with competitive prices.
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.
虽说公众台的儿童节目数量不断下降，但是在不管卫星电视，有线电视还是数字电视上，观众还是能找到数不胜数的专为儿童开设的儿童频道，比如卡通频道（Cartoon Network）以及尼克国际儿童频道（Nickelodeon）。
Viewers could point to a deluge of children's programming on satellite, cable and digital channels such as Cartoon Network and Nickelodeon.
卫星直播电视形成一定规模后势必对有线数字电视业务造成冲击。
Satellite live TV form after a certain scale members of cable digital TV business impact.
众所周知，在一个完整的数字电视体系里，直播卫星、有线数字电视和地面数字电视是三位一体的构架，缺谁都将会造成一个残缺。
Known in a complete digital TV system, Live satellite, cable digital TV and terrestrial digital TV is a trinity frame, lack of which will cause a damaged.
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.
美国航天局的数字电视系统提供更高质量的图像和更有效地利用卫星带宽，这意味着多个美国宇航局在同一时间节目来源多渠道。
Digital NASA TV system provides higher quality images and better use of satellite bandwidth, meaning multiple channels from multiple NASA program sources at the same time.
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.
从数字电视广播的首次实现入手，介绍了机上变换器在卫星直播和CAT V中的应用。
Starting from the first implementation of digital TV broadcasting, the applications of set top converters in DBS and CATV are described in this paper.
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.
介绍有线数字电视DVB -C系统的结构及其IRD ，分析该系统前端和接收端的工作原理，并与数字卫星电视接收DVB -S系统进行比较。
This article introduces the constructure of DVB-C CATV system and IRD, analysises the work priniciple of receiver, compares with DVB-S system.
我可以从我的地方有线电视或卫星电视服务提供商美国航天局的数字电视？
Can I get digital NASA TV from my local cable or satellite service provider?
我可以从我的地方有线电视或卫星电视服务提供商美国航天局的数字电视？
Can I get digital NASA TV from my local cable or satellite service provider?
应用推荐