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- A methodology for defining fixed location area in LEO satellite system for users,which has independent positioning capability is proposed in this paper. 针对基于低轨卫星系统中具有自主定位能力的特殊终端用户,提出地面位置区划分策略。
- LEO satellite systems 低轨卫星系统
- LEO satellite system 低轨卫星通信系统
- A handoff scheme is introduced in this paper, which considers the dynamic thresholds and preemptive priority level in intergrated voice and data LEO(Low Earth Orbit) satellite systems. 提出了话音和数据综合业务LEO卫星通信系统的一种切换方案-动态信道抢占优先方案。
- The handoff in LEO satellite networks makes TCP protocol retransmit packet blindly,and decline TCP performance. 该文分析了低轨卫星网络中TCP报文盲目重传的原因,采用预切换方法,提出了避免了报文盲目重传路由策略。
- The satellite system can help man draw maps with great accuracy. 卫星系统可以帮助人类非常精确地绘制地图。
- LEO satellite formation configurations may get an in-track drift under the perturbation of atmosphere. 大气摄动会造成近地轨道卫星编队构形产生沿航迹方向漂移。
- The satellite system use this device in varied forms. 卫星系统上的这种装置有各种不同的形状。
- Simulations show that the computing complexity and the tree cost are lower than the traditional multicast routing algorithm for LEO satellite networks. 仿真结果表明:与传统的LEO卫星网络组播路由算法相比,该算法具有较低的计算复杂度,生成的组播路由树具有较小的开销。
- LEO satellite network providing real time multimedia service is a important research direction of satellite communication. 低地球轨道leo(LowEarthOrbit)卫星系统因能够提供多媒体通信服务而成为卫星通信研究的热点 .
- With the simultaneously generated precision series, the response of ionospheric phase delay to the LEO satellite orbit biases is assessed and analyzed. 以同步生成的模拟精度序列为参照,就掩星观测中电离层延迟对LEO卫星轨道误差的响应程度进行了估计和分析。
- Fourth, Flyaway Satellite System rental, Flyaway flight mobile support station. 四．移动卫星站租赁和技术支持；
- In LEO satellite networks with inter-satellite links, the highly dynamic topology and the limited on-board resources pose special challenges to routing protocol design. 在具有星际链路的低地球轨道(LEO)卫星网络中;高度动态的网络拓扑和受限的星上资源为其路由协议设计带来很大的挑战.
- This paper discusses the feasibility of LEO satellite of fixation antenna and low or middle power accessing to the TDRSS and realizing space-ground data transmission through TDRS. 该文讨论了使用固定天线和中低发射功率的LEO卫星接入到跟踪与数据中继卫星系统(TDRSS)，并通过跟踪与数据中继卫星(TDRS)来实现空-地数据传输的可行性。
- The ability to access satellite systems reduces ground station dependence and protects against jamming and direct tracking attempts. 能接入卫星系统的能力，减少了它对地面台站的依赖性，并可避免敌方干扰和直接跟踪。
- The selection of connected degree of MEO satellite and LEO satellite in MEO/LEO double layer satellite networks under certain constellation parameters was analyzed in this paper. 分析了在星座结构参数确定的条件下,中轨道/低轨道(MEO/LEO)双层卫星网络弱连接模型中层间连接度参数的选取。
- Low Earth Orbit (LEO) satellite systems 低轨卫星网络
- The formation of the satellite systems of the giant planets parallels in many respects the formation of the planets. 大行星的卫星系统的形成在许多方面相似于行星的形成。
- LEO satellite communication system 低轨卫星通信系统
- Today, Russia is trying to restore this new generation of satellite systems applications. 如今,俄罗斯试图采用新一代卫星恢复这套系统的应用。
