Link performance analysis by adaptive beam divergence algorithm for high reliable inter-satellite optical communications = 적응형 광폭을 이용한 고신뢰의 위성간 광통신 기법 및 성능 분석

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To build a free-space inter-satellite optical communication systems, the line of sight of their optics must be aligned during the entire period of communications. In order to meet this requirement, satellites use the attitude informations for rough pointing, and a tracking system for fine pointing to other satellites. One important aspect in inter-satellite optical communications is to obtain maximum link performance using minimum power. This aim can be achieved with very small transmitter beam divergence angle. The disadvantage of too narrow divergence angle is that the transmitter beam may sometimes miss the receiver satellite due to the pointing vibrations. In this study, an algorithm to maximize the link of inter-satellite optical communication systems using the adaptive beam divergence angle with data rate adaptation is proposed. This adaptation makes it possible to maintain communication link without link failure when the systems meet some large unknown vibration conditions. Also it can operate a communication link with high data rate when the systems are under the stabilized conditions.
Advisors
Lee, Man-Seopresearcher이만섭researcher
Description
한국정보통신대학원대학교 : 공학부,
Publisher
한국정보통신대학원대학교
Issue Date
2001
Identifier
392083/225023 / 000983927
Language
eng
Description

학위논문(석사) - 한국정보통신대학원대학교 : 공학부, 2001, [ viii, 74 p. ]

Keywords

Satellite Communication; Align; Adaptive; Free-Space; Optical Communication; 가변전송률; 적응형광폭; 고신뢰 망; 광통신; 위성통신

URI
http://hdl.handle.net/10203/54751
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=392083&flag=dissertation
Appears in Collection
School of Engineering-Theses_Master(공학부 석사논문)
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