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星座设计与星际链路的建立

耿亮,吴诗其   

  1. 电子科技大学通信学院信息所!成都610054,电子科技大学通信学院信息所!成都610054
  • 发布日期:2000-12-25

Constellations Design and the Establishment of the InterSatellite Links

Geng Liang Wu Shiqi (Inst.of Information Systems UESTC,Chengdu 610054)   

  • Published:2000-12-25

摘要: 在卫星移动通信系统中 ,若使用 L EO/MEO卫星 ,则其位置相对于地球是时变的 ,卫星之间的相对位置也是时变的。要在星座中建立星际链路(Inter Satellite L inks) ,需要确知卫星的相对位置 ,计算卫星间的方位角和距离。文章在介绍了星座类型和几种星座设计方法的基础上 ,说明了星际链路的空间几何参数关系 ,详细讨论了卫星间的方位角和距离与星座设计的关系 ,并给出了一些有价值的结论。

关键词: 卫星通信, 移动通信, 星座, 设计

Abstract: The position of LEO/MEO satellites used in the Mobile Satellite Systems vs the earth and the relative position of satellites are both time-variant.To establish InterSatellite Links (ISLs),it is necessary to make sure of the exact relative position of the satellites to calculate the azimuth and the distance of two satellites using ISLs.After presenting several constellation types and designing methods,the geometrical parameters of the ISLs are given, and the relationship between the azimuth and distance of two sate- llites in ISLs and constellation design in detail are analyzed.Some useful conclusions are also drawn.