V/Ka-band LEO high-throughput satellite and integrated satellite-terrestrial network experiment system: First two years flight results

被引:0
|
作者
Zhang, Shijie [1 ]
Wang, Peng [1 ]
Wan, Yi [2 ]
Peng, Mugen [3 ,4 ]
Lin, Guangrong [1 ]
Zhu, Zhengxian [1 ]
Chang, Ming [1 ]
Gao, Qianfeng [1 ]
Xu, Ming [1 ]
机构
[1] Yinhe Hangtian Beijing Internet Technol Co Ltd, Beijing 100192, Peoples R China
[2] State Key Lab Media Convergence Prod Technol & Sys, Beijing 100803, Peoples R China
[3] China Acad Informat & Commun Technol, Beijing 100191, Peoples R China
[4] Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China
关键词
Low Earth orbit satellite; V; Ka band; High-throughput communication satellite; Integrated satellite-terrestrial network; In-orbit test; COVERAGE ANALYSIS; CONSTELLATIONS; CHALLENGES; DESIGN; WALKER;
D O I
10.1016/j.actaastro.2022.09.028
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
Satellite Internet technology has evolved significantly over the past few years. Low Earth orbit (LEO) satellite communication technology and its applications have received growing interest in the field of global communication, due to their advantages of faster speed, lower latency, higher throughput, etc. GalaxySpace's first satellite (YINHE-1) has been the world's first V/Ka-band LEO broadband satellite with a communication capacity of 24 Gbps. The satellite was launched on the 16th of January 2020, and a series of in-orbit tests and satellite-terrestrial communication experiments were carried out within the two years of orbital flight. YINHE-1 is still operating and will participate in subsequent missions developed by GalaxySpace. This paper describes the overall scheme of satellite design and presents an integrated satellite-terrestrial network experiment system. Based on the two-year in-orbit test results, the Q/V band feed beam tracking, throughput and latency, communication under low elevation angles, and user beam switching are evaluated. In addition, the experiment results of integrated satellite-terrestrial communication are analyzed in detail. It is shown that the LEO broadband satellite possesses satisfactory capability in LTE/5G backhaul and Internet applications.
引用
收藏
页码:533 / 553
页数:21
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