| 一种导航星座星间链路拓扑设计方法 |
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| 引用本文： | 李振东,何善宝,刘崇华,王海红.一种导航星座星间链路拓扑设计方法[J].航天器工程,2011,20(3):32-37. |
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| 作者姓名： | 李振东 何善宝 刘崇华 王海红 |
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| 作者单位： | 北京空间飞行器总体设计部,北京,100094 |
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| 摘 要： | 利用星间测距和通信实现卫星自主导航是下一代导航星座的发展方向之一.为了确定星间测距和通信链路的网络拓扑结构,对walker24/3/2星座的卫星之间几何可见性、卫星天线之间的可见性进行了研究,给出了可见性判断条件,并针对三条轨道相互垂直的情况,推导了星间几何距离随时间变化的公式.对天线扫描区域为±60°对地圆锥的情况进...
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| 关 键 词： | 导航卫星星座 自主导航 星间链路 星座网络 设计 仿真 |
An Toplogy Design Method of Navigation Satellite Constellation Inter-satellite Links |
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| LI Zhendong,HE Shanbao,LIU Chonghua,WANG Haihong.An Toplogy Design Method of Navigation Satellite Constellation Inter-satellite Links[J].Spacecraft Engineering,2011,20(3):32-37. |
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| Authors: | LI Zhendong HE Shanbao LIU Chonghua WANG Haihong |
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| Institution: | (Beijing Institute of Spacecraft System Engineering,Beijing 100094,China) |
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| Abstract: | It is a trend that inter-satellites links are used to achieve autonomous navigation of satellite constellation.To design crosslink topology,inter-satellite antenna visibility of walker24/3/2 satellite constellation is investigated and several conditions of visibility are analyzed.The relationship between inter-satellite range and time is deduced with three orbits upright each other.Theoretical analysis and satellite tool kit（STK） simulation are given when the antenna scan bound is a cone pointing to earth with ±60°angle.The results show that if two satellites can be seen in each adjacent orbit for every satellite in the whole orbit period,permanent inter-satellite links can be established.Finally,a static network topology and a dynamic network topology of navigation satellite network are put forward. |
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| Keywords: | navigation satellite constellation autonomous navigation inter-satellite link satellite constellation network design simulation |
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