A link assignment algorithm applicable to crosslink ranging and data exchange for satellite navigation system

被引：0
作者：
Shi L.-Y. [1 ]
Xiang W. [1 ]
Tang X.-M. [1 ]
机构：
[1] Satellite Navigation and Positioning R and D Center, College of Electronic Science and Engineering, National University of Defense Technology
来源：
Yuhang Xuebao/Journal of Astronautics | 2011年 / 32卷 / 09期
关键词：
Inter-satellite link; Link assignment algorithm; Optimization goal; Satellite navigation system;
D O I：
10.3873/j.issn.1000-1328.2011.09.015
中图分类号：
学科分类号：
摘要：
In satellite navigation system, satellites can transmit spot beam signals to fulfill crosslink ranging and communication. Because the number of transceivers on board is limited, each satellite has less number of transceivers than its visible satellites. It is necessary to solve how to assign these transceivers to point other satellites effectively in order to meet the both requirements for crosslink ranging and data exchange. A topology model for both requirements is proposed in this paper. Based on the topology model, a link assignment algorithm is designed to maximize the quantity of crosslink ranging information periodically and to improve the communication performance of inter-satellite network simultaneously. Although some communication performance loss is inevitable to perform link assignment for crosslink ranging, the simulation results show that the algorithm gives better communication performance than mesh-link assignment adopted in Iridium system.
引用
收藏
页码：1971 / 1977
页数：6
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