• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>56th International Astronautical Congress 2005 vol.3 >ELLIPTIC ORBIT COMMUNICATION SYSTEMlaquo;MOLNIYA- ZONDraquo;: SPACECRAFT, LAUNCH, AND ORBIT STATIONKEEPING
【24h】

ELLIPTIC ORBIT COMMUNICATION SYSTEMlaquo;MOLNIYA- ZONDraquo;: SPACECRAFT, LAUNCH, AND ORBIT STATIONKEEPING

机译：椭圆轨道通讯系统“ MOLNIYA-ZOND”：太空飞船，发射和轨道站保持

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 overview of the satellite communication system "MOLNIYA-ZOND" using a mid-altitude elliptic orbit constellation, focusing on the spacecraft launch and main features of the space segment, including the spacecraft assembling and communication equipment, is presented. The "MOLNIYA-ZOND" will provide a zonal communication for North hemisphere areas (such as the Russia, Canada, and North Europe). The space segment consists of six satellites on a MOLNIYA-type orbit placed in two orbital planes (at elliptic 4-hours orbit with critical inclination and apogee in the North hemisphere). Connection between user terminals is established through satellites and fixed terrestrial gateways. The mobile links (between the user terminals and the satellites) will operate at the 312-315 MHz for uplink and 387-390 MHz for downlink, the feeder links (between the control center/gateway Earth stations and the satellites) will operate at the Ku-band (11/14 GHz). Communication equipment for the "MOLNIYA-ZOND" spacecraft is shortly described. Launch vehicle "SOYUZ-2" with the boost block "FREGAT" will be used for simultaneous launch of 3 spacecraft into the orbit. Orbit positioning strategies, in case of cluster launch are presented. Orbit stationkeeping based on an analysis for long-term changes of satellite constellation coverage and communication network characteristics are described.
机译：介绍了使用中等高度椭圆轨道星座的卫星通信系统“ MOLNIYA-ZOND”的概况，重点介绍了航天器的发射和空间部分的主要特征，包括航天器的组装和通信设备。 “ MOLNIYA-ZOND”将为北半球地区（例如俄罗斯，加拿大和北欧）提供区域通信。该空间部分由位于两个轨道平面上的MOLNIYA型轨道上的六颗卫星组成（在椭圆形的4小时轨道上，北半球的临界倾角和远地点）。用户终端之间的连接通过卫星和固定的地面网关建立。 （用户终端与卫星之间的移动链路）上行链路的工作频率为312-315 MHz，下行链路为387-390 MHz，馈线链路（控制中心/网关地球站与卫星之间的链路）的工作时间Ku频段（11/14 GHz）。简短描述了“ MOLNIYA-ZOND”航天器的通信设备。带有助推块“ FREGAT”的运载火箭“ SOYUZ-2”将用于同时将三艘航天器发射到轨道上。提出了星群发射情况下的轨道定位策略。描述了基于对卫星星座覆盖范围和通信网络特性的长期变化进行分析的轨道保持。

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