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http://dx.doi.org/10.5140/JASS.2004.21.2.109

TIME SYNCHRONIZATION STRATEGY BETWEEN ON-BOARD COMPUTER AND FIMS ON STSAT-1  

곽성우 (계명대학교 전자공학과)
박홍영 (한국과학기술원 인공위성연구센터)
Publication Information
Journal of Astronomy and Space Sciences / v.21, no.2, 2004 , pp. 109-120 More about this Journal
Abstract
STSAT-1 was launched on sep. 2003 with the main payload of Far Ultra-violet Imaging Spectrograph(FIMS). The mission of FIMS is to observe universe and aurora. In this paper, we suggest a simple and reliable strategy adopted in STSAT-1 to synchronize time between On-board Computer(OBC) and FIMS. For the characteristics of STSAT-1, this strategy is devised to maintain reliability of satellite system and to reduce implementation cost by using minimized electronic circuits. We suggested two methods with different synchronization resolutions to cope with unexpected faults in space. The backup method with low resolution can be activated when the main has some problems.
Keywords
STSAT-1; FIMS; on-board computer; time synchronization;
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  • Reference
1 /
[ 곽성우 ] / 기술보고서
2 /
[ 김기형;김형신;박재현;박규호;최순달 ] / 한국우주과학회지
3 /
[ 김형신;이홍규;최순달 ] / 한국우주과학회지
4 /
[ Augusto, C. ] / 14th IEEE International Conference on Distributed Computing Systems
5 /
[ Chang, H. S. ] / FIMS Interrace Control Document
6 /
[ Chang, H. S. ] / STSAT-1 General System Specification
7 /
[ Dolev, D.;Dwark, C.;Stockmeyer, L. ] / Journal of ACM   DOI   ScienceOn
8 /
[ Kwak, S. W.;Park, H. Y. ] / Journal of The Korean Society for Aeronautical and Space Sciences
9 /
[ Kwak, S. W.;Ryu, S. M.;Park, H. Y.;Oh, D. S.;Choi, B. J.;You, K. H.;Kim, B. K. ] / Journal of The Korean Society for Aeronautical and Space Sciences
10 /
[ Gianluigi, A.;Augusto, C. ] / Real-Time Systems   DOI   ScienceOn