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- The use of the adaptive robust controller for improving control performance and stability of mobile satellite antenna systems is investigated in this paper. 摘要为了改善移动卫星天线的控制性能和稳定性，本文进行移动卫星天线的自适应鲁棒控制系统的研究。
- mobile satellite antennas systems 移动卫星天线
- mobile satellite antennas 移动卫星天线
- A colony of parabolic satellite antennas installed at the IBC. 位于IBC范围内放置卫星天线机组的位置。
- Firstly, this paper introduces how the antenna tracks and the platformcompensates in Mobile Satellite Communication, and some relevant apparatuses. 移动卫星通讯天线跟踪的研究主要集中在天线跟踪方式与稳定平台。
- It specifies complete mobile satellite communications systems and procures and operates the space segment. Inmarsat对整套卫星移动通信系统制定规范，并负责购置和操作空间部分o
- Adaptive sliding mode control (ASMC) method was applied in satellite antenna tracking and pointing servo system. 摘要将自适应滑模变结构方法应用于卫星天线跟踪指向控制伺服系统。
- In addition, the interleaving parameters are provided based on correlation function of the mobile satellite channel. 同时,在研究信道相关的基础上,给出了交织相关参数的设计准则。
- Array-fed parabolic reflector and shaped reflector with a single feed are usually used to be contoured beam satellite antenna. 卫星波束赋形天线普遍采用阵馈抛物反射面天线和单馈成形反射面天线。
- A number of national mobile satellite communications systems also serve the United States, Canada, Australia, and Japan with many more planned. 许多国家的移动卫星通信系统也为美国,加拿大,澳洲和日本提供更多计划服务。
- In order to meet global scanning requirements of the satellite antenna, a side-fed offset cassegrain (SFOC) antenna is designed in this paper. 为满足星载天线空间电扫描的要求 ,研究了宽角扫描侧馈偏置卡塞格伦天线 (SFOC)的设计问题。
- The paper overviews the applications and development prospects of VSAT, mobile satellite communication and advanced satellite communication system. 论文综述了VSAT、移动卫星通信和先进卫星通信系统三个热点,指出了它们的应用情况和发展前景。
- Will be allowed to install in the external walls of the balcony, formwork, flower racks, pillars, signs, antiglare cloth, satellite antenna or any form of appendages. 不得擅自在楼宇外墙安装露台、铁架、花架、支柱、招牌、遮光布、卫星天线或任何形式的附加物等。
- Mobile satellite services(MSS)networks are relayed via satellite between large fixed Earth stations and small mobile terminals fitted to a ship,an aircraft,or a vehicle. 移动卫星服务(MSS)网络通过卫星在大的地面固定电台和安装在船只飞机或是车辆上的小的移动终端之间转播.
- Antenna tracking system of mobile satellite TV receiver 车载接收卫星电视直播节目的天线自动跟踪系统
- To improve the wide-angle scanning properties of the satellite antenna, we concentrate on the shaping of the main reflector of the Side-Fed Offset Cassegrain (SFOC) antenna by the method of the ray tracing and the idea of the optimization. 为改善星载天线的宽角扫描特性;采用射线追踪的方法;通过优化的思想对侧馈偏置卡塞格伦(SFOC)天线的主反射面进行了面赋形设计.
- Adopting Medium Earth Orbit (MEO) constellation is an effective way for this situation Time-dependent constellation for the regional mobile satellite communication systems is proposed in this paper. 采用中轨星座是解决这一问题的有效途径。本文提出了一种用于区域性系统的中轨星座设计方法：“时间决定”星座设计。
- The deployment principium of a large hoop-truss satellite antenna is studied and the mechanical analysis model and the non-probabilistic reliability model of its deployment mechanism are presented. 摘要对某周边桁架式大型星载天线的展开运动机理进行了研究，建立了展开机构的力学分析和非概率运动可靠性的分析模型。
- HU Jian-Hao,WU Shi-Qi,LI Le-Min.Performance analysis for LEO/MEO mobile satellite communication systems with intersatellite link[J].ACTA Electronica Sinica,1999,27(11):65-68(in Chinese). [2]胡剑浩;等.;具有星际链路的LEO/MEO卫星移动通信网络性能分析[J]
- Survey of Earth Station Antennas for Mobile Satellite Communications 卫星移动通信地球站天线发展综述
