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Journal Article 저궤도 군집 통신위성 탑재체 기술 동향
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Authors
엄만석, 장동필, 이병선
Issue Date
2022-06
Citation
전자통신동향분석, v.37, no.3, pp.41-51
ISSN
1225-6455
Publisher
한국전자통신연구원
Language
Korean
Type
Journal Article
DOI
https://dx.doi.org/10.22648/ETRI.2022.J.370305
Abstract
This article presents an overview of the key technologies in the communications payload of broadband LEO satellite communications systems. In recent years, new developments have been realized for LEO satellite communications. SpaceX’s Starlink, a technology leader in this field, offers premium services with satellites carrying in-house developed communications payloads. OneWeb, Amazon, Telesat, and Boeing are also developing LEO satellite communications payloads. The communications payload consists of user link antennas, inter-satellite link communications equipment, feeder link antennas, and a digital processor. Highly sophisticated technologies of compact active phased array antennas for generating multiple hopping beams and light laser communication equipment for ultra-high-speed inter-satellite communication will be applied to next- generation payloads.
KSP Keywords
Communication equipment, Communications equipment, Communications system, Digital processor, Feeder link, Key technology, LEO satellite, New developments, active phased array, inter-satellite communication, inter-satellite link
This work is distributed under the term of Korea Open Government License (KOGL)
(Type 4: : Type 1 + Commercial Use Prohibition+Change Prohibition)
Type 4: