卫星组网构型设计及接入算法技术研究

为了弥补单层卫星网络的缺点，综合各单层卫星网络的优点，形成优势互补，为用户提供更好的服务质量，混合卫星网络应运而生.针对不同的卫星接入算法对卫星的服务质量的影响各不相同，重点研究设计更好的混合卫星网络和卫星接入算法.在分析GEO、MEO、LEO和HEO卫星网络各自的特点的基础上，综合其性能的好坏和设计实现的难易程度，设计并提出5 GEO+66 LEO的双层卫星网络及多QoS约束的卫星接入算法.最后通过仿真分析，验证该算法的正确性.

Constellation Design and Access Algorithm of Satellite Networks

In order to compensate for the shortcomings of single satellite network and combine the advantages of single satellite network so as to provide users with a better quality of service, hybrid satellite networks are proposed. Every algorithm has different impact on the quality of service; so many current researches focus on how to design better hybrid satellite networks and satellite access method. After analyzing the characteristics of the GEO, MEO, LEO and HEO satellite networks and comparing their performances and complexities, a double 5 GEO +66 LEO satellite network and a satellite selection algorithm with multiple QoS constraints are designed in this paper. Finally, the correctness of this algorithm is verified via simulation.