Zobrazeno 1 - 10 of 38 pro vyhledávání: '"Seung-Wu Rhee"'
1
Akademický článek
Development of the Earth Observation Camera of MIRIS
Autor: Dae-Hee Lee, Wonyong Han, Youngsik Park, Sung-Jun Park, Bongkon Moon, Chang Hee Ree, Jeonghyun Pyo, Woong-Seob Jeong, Uk-Won Nam, Duk-Hang Lee, Kwijong Park, Sooho Bae, Seung-Wu Rhee, Jong-Oh Park, Geon-Hee Kim, Sun-Choel Yang, Young-Ju Kim
Publikováno v: Journal of Astronomy and Space Sciences, Vol 28, Iss 3, Pp 225-232 (2011)
We have designed and manufactured the Earth observation camera (EOC) of multi-purpose infrared imaging system (MIRIS). MIRIS is a main payload of the STSAT-3, which will be launched in late 2012. The main objective of the EOC is to test the operati
Externí odkaz: https://doaj.org/article/3e1fab5bdbab4f77b3317ca096a23644
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2
Akademický článek
A Singularity Avoidance Steering Law Based on the Minimization Technique
Autor: Hwa-Suk Oh, Bong-Un Lee, Seung-Wu Rhee, Seon-Ho Lee
Publikováno v: Journal of Astronomy and Space Sciences, Vol 23, Iss 4, Pp 397-404 (2006)
Geometric singularity problems are principle difficulties of single-gimbal control moment gyros in spacecraft attitude control. To overcome these singularities, many steering logics have been studied. In this paper, a new null motion steering law is
Externí odkaz: https://doaj.org/article/95adc2af3ee44ce4bc8c234e54cdffea
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5
Comparison Study of H-infinity Controller Design Algorithms for Spacecraft Attitude Control
Autor: Seung-Wu Rhee
Publikováno v: Journal of the Korean Society for Aeronautical & Space Sciences. 44:57-69
There are three kinds of algorithms(2-ARE, mu-synthesis, LMI) for controller design using closed-loop shaping method. This paper provides the summary of background theory of three algorithms and controller design results for spacecraft attitude contr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::43679455c2a44d2ec73eb0eb0a29ea1d
https://doi.org/10.5139/jksas.2016.44.1.57
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6
Radial Type Satellite Attitude Controller Design using LMI Method and Robustness Analysis
Autor: Seung-Wu Rhee
Publikováno v: Journal of the Korean Society for Aeronautical & Space Sciences. 43:998-1007
The control theory using LMI method is applied to design an attitude controller of radial type satellite that has strongly coupled channels due to the large product of inertia. It is observed that the cross-over frequency of open-loop with controller
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0050860e93e86f0da04cfc58e71dc94a
https://doi.org/10.5139/jksas.2015.43.11.998
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7
Performance analysis for hyper spectral signal detection of compact imaging spectrometer for STSAT3 satellite
Autor: Jun Ho Lee, Tae-Seong Jang, C. W. Lim, Seung-Wu Rhee, Kyung-In Kang
Publikováno v: International Conference on Space Optics — ICSO 2008.
STSAT-3 is the third science and technology experimental microsatellite of the STSAT series designated in the Long-Term Plan for Korea’s Space Development. The STSAT3 satellite will be launched into a lower sunsynchronous earth orbit (~ 700km) in 2
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9028ffc357277b8560d129b48e597459
https://doi.org/10.1117/12.2308244
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8
Roles of B-dot Controller and Failure Analysis for Dawn-dusk LEO Satellite
Autor: Seung-Wu Rhee, Jun-Won Son, Hong-Joong Kim
Publikováno v: Journal of the Korean Society for Aeronautical & Space Sciences. 41:200-209
In this paper, the types of B-dot controller and the review results of B-dot controller stability are summarized. Also, it is confirmed that B-dot controller is very useful and essential tool when a dawn-dusk low earth orbit(LEO) large satellite has
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c5c29936f5fd45e17c7c0653692c0aff
https://doi.org/10.5139/jksas.2013.41.3.200
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9
A Study on High Agile Satellite Maneuver using Reaction Wheels and CMGs
Autor: Jun-Won Son, Seung-Wu Rhee
Publikováno v: Journal of the Korean Society for Aeronautical & Space Sciences. 41:107-119
We study three axis attitude control method including two axis high agile maneuver using four reaction wheels and two control moment gyros. We investigate singularity conditions due to two control moment gyros and propose singularity escape method. B
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e1559080744c4212715b6e5c2882dfd4
https://doi.org/10.5139/jksas.2013.41.2.107
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10
Opto-mechanical Analysis for Primary Mirror of Earth Observation Camera of the MIRIS
Autor: Jakyoung Nah, Wonyong Han, Chang-Hee Ree, Dae-Hee Lee, Sun-Choel Yang, Jeonghyun Pyo, Bongkon Moon, Kwijong Park, Sung-Jun Park, Youngsik Park, Seung-Wu Rhee, Duk-Hang Lee, Woog-Seob Jeong, Uk-Won Nam
Publikováno v: Korean Journal of Optics and Photonics. 22:262-268
MIRIS(Multi-purpose Infra-Red Imaging System) is the main payload of the STSAT-3(Korea Science and Technology Satellite. 3), which is being developed by KASI(Korea Astronomy & Space Institute). EOC(Earth Observation Camera), which is one of two infra
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6e2bcbd9afc3d4234175e5680ec0b08f
https://doi.org/10.3807/kjop.2011.22.6.262
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