| MEO/LEO双层卫星网络中层间链路的连接度分析 |
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| 引用本文： | 王振永,李集林,郭庆,顾学迈.MEO/LEO双层卫星网络中层间链路的连接度分析[J].中国航空学报,2006,19(4):340-345. |
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| 作者姓名： | 王振永 李集林 郭庆 顾学迈 |
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| 作者单位： | Communication Research Center, Harbin Institute of Technology, Harbin 150001, China |
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| 摘 要： | 作为未来卫星移动通信系统的一个重要的研究方向,提出了一种由MEO卫星和LEO卫星共同组成的双层卫星网络(Double-Layer Satellite Network,DLSN),以更好为用户提供多媒体服务.作为多层卫星网络的一个重要的研究内容,连接不同高度上卫星的层间链路(Inter-Orbit-Links,IOLs)的特性对于整个DLSN网络的性能会有很大的影响.根据所设计的多层卫星网络的星座参数,通过对层间链路几何特性的研究,分析了多层卫星网络中MEO卫星与LEO卫星的连接度性能.采用计算机仿真的方法,给出了层间链路连接度的特性.结果表明,为了提高网络性能,在多层卫星网络中应按照一定参数有选择的建立层间链路,而不是简单的采用视距可见原则建立层间链路.
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| 关 键 词： | 双层卫星网络 中轨/低轨 层间链路 连接度 |
| 文章编号： | 1000-9361（2006）04-0340-06 |
| 收稿时间： | 2006-02-14 |
| 修稿时间： | 2006-09-14 |
Analysis on Connectivity of Inter-Orbit-Links in a MEO/LEO Double-Layer Satellite Network |
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| WANG Zhen-yong,LI Ji-lin,GUO Qing,GU Xue-mai.Analysis on Connectivity of Inter-Orbit-Links in a MEO/LEO Double-Layer Satellite Network[J].Chinese Journal of Aeronautics,2006,19(4):340-345. |
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| Authors: | WANG Zhen-yong LI Ji-lin GUO Qing GU Xue-mai |
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| Institution: | Communication Research Center, Harbin Institute of Technology, Harbin 150001, China;Communication Research Center, Harbin Institute of Technology, Harbin 150001, China;Communication Research Center, Harbin Institute of Technology, Harbin 150001, China;Communication Research Center, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | As an important scheme of future global mobile satellite communication systems to provide multi- media service, a Double-Layer Satellite Network (DLSN) with MEO satellites and LEO satellites is proposed. The Inter-Orbit-Links (IOLs) between layers is an essential factor, which affects the performances of the DLSN systems. Considering certain constellation parameters, the geometric characteristics of IOLs are described and the connectivity of MEO satellites and LEO satellites in the DLSN is analyzed. By computer simulation, the results show that IOLs should be selectively established according to certain parameters rather than the simple in-sight principle. |
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| Keywords: | double-layer satellite network MEO/LEO inter-orbit-links connectivity |
| 本文献已被 CNKI 维普 万方数据 ScienceDirect 等数据库收录！ |
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