QPSK as an advanced digital modulation technique is fit for the digital satellite communication system well.
QPSK作为一种先进的数字调制方式，特别适用于数字卫星通信系统。
A fully integrated direct-conversion digital satellite tuner for DVB-S/S2 and ABS-S applications is presented.
本文设计了一种满足DVB-S/S2和ABS-S标准的全集成直接变频数字卫星调谐芯片。
Digital satellite communications provide a good transmitting flat for digital broadcasting because of its excellent signal quality, wide coverage and lower cost.
数字卫星通信以其信号质量好、覆盖面广、长期成本低等优点为广播电视的数字化传输提供了良好的传输平台。
The error-rate performance of the high-speed QPSK digital satellite communication system with cochannel large capacity FDM-PM signal interference is studied by means of computer simulation.
本文用计算机模拟的方法研究高速QPSK数字卫星系统受大容量FDM-FM信号同波道干扰时的系统误码特性。
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.
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。
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.
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。
A computer simulation system is constructed, which is suitable for studying the error-rate performance of the high-speed QPSK digital satellite communication system under interference and noise.
构成了适合于研究干扰和噪声条件下高速QPS K数字卫星系统误码特性的计算机模拟系统。
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.
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。
Available via terrestrial signals, satellite and cable, digital broadcasting will herald an explosion in the number of available channels.
通过陆地信号，卫星和电缆，数字式的广播将在可收到的频道的数量上带来一次大爆炸。
The team used a satellite photo of a suspected submerged city to find the site then surveyed it with a combination of deep-ground radar, digital mapping, and underwater technology.
研究小组首先利用可能是被掩埋城市的卫星影像来寻找遗址，然后综合利用探地雷达，数字地图和水下技术来进行进一步调查。
Other, less common methods adopt a full digital delivery, using either dedicated satellite links or high speed Internet connections.
还有，较少见的是采用完全的数字发放，或者使用专用的卫星连接或者是高速因特网连接。
The headend, consisting of content providers and equipment (such as the satellite receiver, encoders, and so on) needed to transmit and receive digital assets, onto the IP network.
数据转发器，包含内容提供者和用于在IP网络上传输和接收数字资产所需的设备(如卫星接收器、编码器等)。
Some people have stumped up for cable and satellite TV but more have opted for Freeview, which decodes free digital signals sent over the airwaves.
尽管一些受众选择付费有线或卫星电视，更多人还是选免费电视。
The topography is from digital elevation data collected by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite.
这张地形图根据由NASA（美国航空航天局）Terra号卫星上的先进星载热发射和反射辐射仪（ASTER）搜集的数字海拔高度数据制作而成。
The topography is from digital elevation data collected by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite.
地形图海拔数据来自于美国国家航空航天局的Terra(土地)卫星上的高级星载热辐射及热反射仪(ASTER)。
The new law allowed Mediapro to promote its pay soccer channel to TDT viewers just as the league season started, hurting Prisa's own satellite-TV channel, Digital +.
新法案允许Mediapro在赛季开始后向陆地数字付费电视用户推广付费足球频道，此举损害了Prisa自己的卫星电视频道Digital +的利益。
Viewers could point to a deluge of children's programming on satellite, cable and digital channels such as Cartoon Network and Nickelodeon.
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）。
The secure, high-capacity, jam-resistant wireless (non-satellite) system connects users with both digital data and voice communications.
这种安全、高容量、抗阻塞的无线（非卫星）系统通过数字数据以及话音通信使战场用户互连。
Satellite radio remains the leading platform for digital radio in the U. s., despite notable progress in HD radio awareness.
在美国，卫星无线电仍然是主导平台，尽管在HD无线电方面有显著的进展。
Satellite live TV form after a certain scale members of cable digital TV business impact.
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。
Respond to satellite design and manufacturing, put the importance of satellite digital design and manufacturing integrated platform forward.
从卫星设计制造的需求出发，提出卫星数字化设计制造象成平台的重要性。
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.
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。
DVB is the digital HDTV standard that developed by more than 170 organizations in Europe. It mainly comprises satellite (DVB-S), terrestrial (DVB-T) and cable (DVB-C) digital television systems.
数字视频广播(DVB)是欧洲170多个组织共同开发出的数字高清晰度电视标准，它主要由卫星广播(DVB - S)、地面广播(DVB - T)和有线电视(DVB - C)三部分组成。
To enable playback on an analog TV signal, the satellite TV receiver converts the digital signal into an analog format that a standard television can recognize and playback.
若要对模拟电视信号启用播放，卫星电视接收器需要将数字信号转换为标准电视可以识别和播放的模拟格式。
This paper mainly compared the optical fiber, digital microwave and satellite communication in technology and economy.
本文着重对光纤、数字微波和卫星通信几种传输方式进行经济、技术比较。
This paper mainly compared the optical fiber, digital microwave and satellite communication in technology and economy.
本文着重对光纤、数字微波和卫星通信几种传输方式进行经济、技术比较。
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