中文摘要：

随着空间技术需求的不断增多,传统的单层卫星星座组网模式,由于其结构简单,在未来空间技术的发展中受到限制.近年来,采用多层卫星进行星座组网受到业界的普遍关注.鉴于多层卫星星座模型的优点,设计了一种新的基于GEO/MEO/LEO的三层卫星星座模型.本模型充分结合高、中、低轨道各自的优势,以尽量少的卫星数量实现了对地球的全面覆盖,较之传统单层模型更为立体化.最后,通过STK和MATLAB对所提出的多层卫星星座组网模型进行了数字化仿真,从星间链路的长度、链路通信俯仰角以及方位角等方面进行了对比和分析,验证了本模型的合理性和有效性.

英文摘要：

With the increasing demand of space technology,the traditional single layer satellite constellation network is restricted in the development of future space technology because of its simple structure. For this reason,more and more researchers have carried out the research on the multi-layer satellite constellation network in recent years. This paper put forward a new GEO / MEO /LEO satellite constellation design based on the advantages of multi-layer satellite constellation to achieve full coverage of the earth with as little satellites as possible. It is more stereo than traditional style. Finally,we use STK and MATLAB to realize the digital simulation of this design. The rationality and effectiveness of this design are verified by comparison and analysis of the length of the satellite link,the communication pitch angle and azimuth angle.