• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>28th AIAA international communications satellite systems conference 2010 >Maximum Internet Capacity to Aircraft
【24h】

Maximum Internet Capacity to Aircraft

机译：飞机的最大互联网容量

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

An Aeronautical Broadcast and Communications System (ABCS) links aircraft in-flight to the Internet via satellite.1 The proposed (patented) architecture optimizes usable bandwidth by utilizing broadcast beams employing frequencies above 17GHz to illuminate flight routes." Spatial, frequency and polarization isolation are employed to maximize capacity. Use of frequencies above 17GHz facilitates regulatory coordination and licensing, while taking advantage of minimal atmospheric attenuation to and from aircraft at cruising altitudes. Terrestrial bidirectional satellite feeder links employ spot beams with frequencies below 17GHz to facilitate regulatory coordination. Conceptual ABCS designs are presented as building blocks for incremental deployment. The tutorial approach provides intercontinental coverage and consists of a 48-channel, 4-beam 12KW satellite payload comprising four, 12-channel transponder segments, each serving a fleet of aircraft beam-by-beam. Satellite transponders perform frequency translations from 14.0 to 19.7 GHz (earth-to-aircraft) and from 29.5 to 10.7 GHz (aircraft-to-earth). A 36 MHz transponder channel is introduced as a basis for comparative link analysis. Each aircraft is equipped with antennas and a 24-channel transceiver. The network operations center (NOC) manages all network activities beginning with the signal traffic between the Internet and the aircraft. Quality-of-Service (QoS) is continuously monitored on each aircraft channel. Bandwidth is dynamically reassigned on a demand basis as air traffic and various data traffic moves between beams. Analysis identifies baseline forward and return transponder information rates and provides basis for the conceptual ABCS presented. Analysis demonstrates greater capacity available for this conceptual design over a comparable all Ku-band aeronautical system using common transponders. A strategy to provide maximum Internet capacity to aircraft extends ABCS coverage incrementally. Future mobile satellite Ka-band allocations expand after existing capacity saturates, to envision extending ABCS services over multiple generations.
机译：航空广播和通信系统（ABCS）通过卫星将飞行中的飞机连接到互联网。1拟议的（已获得专利的）体系结构通过利用采用高于17GHz的频率的射束来照亮飞行路线，从而优化了可用带宽。”空间，频率和极化隔离使用17 GHz以上的频率有助于监管协调和许可，同时利用在巡航高度往返飞机的最小空气衰减优势地面双向卫星馈线链路使用频率低于17 GHz的点波束来促进监管协调。 ABCS设计是作为增量部署的基础模块提出的，该教程方法提供了洲际覆盖，包括一个48通道，4束12KW卫星有效载荷，包括四个12通道应答器段，每个段均由一架飞机逐束卫星转发器性能rm频率转换从14.0到19.7 GHz（对地）和29.5到10.7 GHz（飞机对地）。引入36 MHz应答器通道作为比较链路分析的基础。每架飞机均配备天线和24通道收发器。网络运营中心（NOC）从Internet和飞机之间的信号流量开始管理所有网络活动。在每个飞机通道上都持续监控服务质量（QoS）。随着空中流量和各种数据流量在波束之间移动，带宽会根据需求动态分配。分析确定了基线转发器和返回转发器的信息速率，并为提出的概念性ABCS提供了基础。分析表明，与使用普通应答器的所有Ku波段航空系统相比，该概念设计具有更大的容量。为飞机提供最大Internet容量的策略逐渐扩展了ABCS的覆盖范围。在现有容量饱和后，未来的移动卫星Ka频段分配将扩大，以设想将ABCS服务扩展到多代。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号