2007年10月发射了首颗卫星宽带系统，提高了高带宽的通信能力，支持美国军事行动。
The wideband system, with its first satellite launched in October 2007, increases the high-bandwidth communications capacity available to support U.S. military operations worldwide.
第四部分是基于卫星宽带远程环境对学习服务支持系统具体的构建思考。
Part four explores the construction of the Learning Support Services System based on the environment of Satellite Broad Band.
美军宽带全球卫星通信系统(WGS)是美国目前最为先进的军用通信卫星。
Now US wideband global satcom (WGS) is the best advanced military communications satellite in America.
构建基于卫星宽带远程环境的学习支持服务系统，提高远程教育教学质量，是结合时代提出的重要课题。
Construction of the Learning Support Services System under the Satellite Broad Band environment is an important subject to improve the teaching quality of the Distance Education.
基于星上路由交换技术的宽带卫星通信系统一直是未来移动通信系统的重要组成部分。
Wideband satellite communication system that based on the satellite - based Routing and Switching system is an important pattern of future mobile communication system.
而研究卫星定位系统终端使用的天线具有重要的价值与意义，特别是天线的宽带化、小型化技术。
So, it is very important for us to do some research on the satellite navigation and positioning system antenna especially on the broadbandization and miniaturization technology.
宾馆拥有各类豪华标准房、套房、商务房91套，中央空调、卫星电视、网通宽带上网系统等设施一应俱全。
Our hotel have 91 tastefully decorated rooms, plus central air condition, satellite TV, Internet access, CNC, etc from soup to nuts.
所有房间设有宽带上网系统、私人保险箱、国际、国内长途直拔电话、卫星电视、迷你小酒吧、“影子服务”系统，以及24小时客房送餐服务。
Besides, the Internet access, private insurance box, equipped with IDD and DDD, satellite TV, mini bar, "Shadow service" system and 24-hour room service are available in each room.
对透明转发器卫星通信系统，干扰的有效功率必须大于所有用户的总功率，宽带干扰或梳状谱干扰是较好的干扰方式。
For satellite communications system with a transparent transponder, the effective jammer power must be larger than the total power of all t...
本论文研究工作为基于宽带卫星通信系统的通信平台的设计与实现。
This paper focuses on designing and implementing of the communication platform based on satellite communication.
结果表明移动卫星信道中存在的多径和阴影现象使系统的误码性能恶化，而采用宽带扩频调制则可极大改善系统的性能。
Based on the model, the BER Bit Error Ratio performance is analyzed for narrow-band modulation and wide-band spread -spectrum modulation of coherent PSK Phase Shift Key...
结果表明移动卫星信道中存在的多径和阴影现象使系统的误码性能恶化，而采用宽带扩频调制则可极大改善系统的性能。
Based on the model, the BER Bit Error Ratio performance is analyzed for narrow-band modulation and wide-band spread -spectrum modulation of coherent PSK Phase Shift Key...
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