卫星系统

With the development of missile defense system,the penetration of ballistic missile will faces with a greater menace,and the midcourse of ballistic missile is the focus of countermine.

"国防支援计划"系统是由美国空军的空间和导弹系统中心研制的预警卫星系统，属于同步轨道导弹预警卫星，提供24h全球监视，载有红外传感器、电视摄像机和核爆炸探测器等设备，主要用于导弹预警和核爆炸探测。

The application of DVB system which started with satellite living broadcast system was adoptted by CATV gradually. By the growing up of Internet, DVB system based on llnternet became the research object of researchers and engineers. However, narrow band and high error rate of Internet limited the application of DVB system which should transport lots of data on network.

DVB体系的应用起始于直播卫星系统，后来逐渐被有线电视系统采用，由于Internet的崛起，有人开始了基于Internet的DVB系统的研究，可是Internet带宽低，错误率高，这些Internet网络固有的局限性，限制了需要大量数据的传播的DVB系统的广泛应用。

ReporterUnderstanding arrives now,"Goddess in the moon " the satellitic system of first phase project, carrier rocket system and project control system, used too material of two kinds of when steeliness builds 4 kinds of iron and steel, still cooperation of You Taigang of a kind of rolled steel is produced.

记者今日了解到，"嫦娥"一期工程的卫星系统、运载火箭系统和工程控制系统，使用了太钢制造的两类4种钢铁材料，还有一种钢材由太钢协作生产。

Based on the analysis of the architecture and characteristics of the GEO/MEO TDRSS for China, two system schemes are given.

在分析了我国可采用的静止轨道和中轨道跟踪与数据中继卫星系统的系统结构和特点的基础上，给出了2 个系统方案。

Based on the analysis of the architecture and characteristics of the GEO/MEO TDRSS for China, two system schemes are given.

中文摘要：在分析了我国可采用的静止轨道和中轨道跟踪与数据中继卫星系统的系统结构和特点的基础上，给出了2 个系统方案。

The analysis and simulation results indicate that the MEO- TDRSS can provide better coverage performance with more implementing cost.

仿真结果表明，中轨道跟踪与数据中继卫星系统能够提供更好的覆盖性能，但实现难度大于静止轨道跟踪与数据中继卫星系统。

Simply put, this is a global coverage of the 24 satellites of the satellite systems.

简单地说，这是一个由覆盖全球的24颗卫星组成的卫星系统。

With three groups of imported digital satellite system equipment, programs of Pan-America No.1, Asia No.1, BS and 6 sets of domestic cabled TV can be received

采用进口3组数字卫星系统设备，可接收泛美二号、亚洲一号、日本BS卫星及国内6套闭路电视。

Fixed satellite servicenetworks are mainly intended for long-distance operation of telecommunications networks,FSS satellites are employed to relay signals between large,complex,and expensive Earth stations,which are connected to the terrestrial telecommunications network.

固定的卫星系统网络主要打算供长距离的电讯广播网的运转使用，FSS卫星用来转播大的，复杂和昂贵的地面电台的信号，连接在陆地电讯网上。

The Global Positioning System is a Global Navigation Satellite System developed by the United States Department of Defense.

全球定位系统是一个全球导航卫星系统发达的美国国防部这是唯一的全功能的全球导航卫星系统在世界上。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。