GEO satellite communication link budgets calculation and analysis

doi:10.16708/j.cnki.1000-758X.2020.0035

Chinese Space Science and Technology ›› 2020, Vol. 40 ›› Issue (3): 83-92.doi: 10.16708/j.cnki.1000-758X.2020.0035

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GEO satellite communication link budgets calculation and analysis

XU Ting^1,*，LAN Hai²，ZHANG Hongjiang³#br#

1. Lao Asia Pacific Satellite Co., Ltd., Vientiane 999012, Laos
2. Chongqing Liangjiang Satellite Mobile Communication Co., Ltd., Chongqing 401135, China
3. China Academy of Launch Vehicle Technology, Beijing 100076, China

Received:2019-10-25 Revised:2019-11-30 Accepted:2020-01-20 Published:2020-06-25 Online:2020-05-29

Abstract

Abstract: As an important technology, satellite-ground link budget calculation is the theoretical basis of satellite communication system designing which directly decides the link availability. As there are many factors which may affect the satellite link, any unreasonable factor in the design would make the whole satelliteground link unavailable and leads to a big loss. Moreover, there is no ideal satellite link situation unless overlooking some factors, which is also a difficulty during the link budget calculation. Based on the international common calculating method, GEO satellite link was analyzed thoroughly, separating the whole link into uplink and downlink. Then a practical example was analyzed and calculated according to the project experience in LAOSAT Company. At last, different reasonable designing methods in terms of different link configurations were obtained, which could be the references to link calculation and analysis of GEO satellite communication.

Key words: link budget calculation, satellite communication, practical example, GEO

XU Ting, LAN Hai, ZHANG Hongjiang. GEO satellite communication link budgets calculation and analysis[J]. Chinese Space Science and Technology, 2020, 40(3): 83-92.

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GEO satellite communication link budgets calculation and analysis

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