| 动态星间链路分析及其STK/Matlab实现 |
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| 引用本文： | 王 倩,王祖林,何善宝,郭旭静.动态星间链路分析及其STK/Matlab实现[J].电讯技术,2010,50(9). |
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| 作者姓名： | 王 倩 王祖林 何善宝 郭旭静 |
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| 作者单位： | 1. 北京航空航天大学,电子信息工程学院,北京,100191
2. 中国空间技术研究院,北京,100094 |
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| 摘 要： | 为了动态分析星间链路，提出了一种用来精确计算星间链路的距离“交点”模型，利用该模
型可以
使星间链路距离的误差仅为米级。在此基础上建立多普勒频移和链路预算动态分析模型，并
以STK(Satellite Tool Kit)/Matlab接口实现。最后以24/3/2构型Walker星座为例仿真
，得到多普勒频移及其变化率、载温比、门限余量等系统设计所必需的多组参数。
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| 关 键 词： | 星座 星间链路 STK/Matlab接口 链路预算 多普勒频移 |
Dynamic Inter-satellite Link Analysis and its STK/Matlab Implementation |
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| WANG Qian,WANG Zu-lin,HE Shan-bao and GUO Xu-jing.Dynamic Inter-satellite Link Analysis and its STK/Matlab Implementation[J].Telecommunication Engineering,2010,50(9). |
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| Authors: | WANG Qian WANG Zu-lin HE Shan-bao and GUO Xu-jing |
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| Affiliation: | School of Electronic & Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191,China;School of Electronic & Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191,China;China Academy of Space Technology, Beijing 100094,China;School of Electronic & Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191,China |
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| Abstract: | In order to analyse inter satellite links(ISLs) dynamically, Intersect
ion model, an accurate distance calculation method of ISL is presented .The comp
utation error is only at meter level. Based on the above method, the model of Do
ppler shift and link budget dynamic analysis is constructed and realized by the
STK (Satellite Tool Kit)/Matlab interface. The dynamic simulation is performed b
y taking the 24/3/2 Walker constellation for instance. The parameters can be obt
ained such as Doppler shift, Doppler shift changing rate, carrier-to-temperature
ratio and threshold cushion,all of which are necessary for the inter-satellite
links communication system design. |
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| Keywords: | |
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