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http://dx.doi.org/10.5139/JKSAS.2011.39.12.1174

Analysis of the Single Event Effect of the Science Technology Satellite-3 On-Board Computer under Proton Irradiation  

Kang, Dong-Soo (충남대학교 컴퓨터공학과 대학원)
Oh, Dae-Soo (한국과학기술원 인공위성센터)
Ko, Dae-Ho (한국항공우주연구원)
Baik, Jong-Chul (AP 시스템(주))
Kim, Hyung-Shin (충남대학교 컴퓨터공학과)
Jhang, Kyoung-Son (충남대학교 컴퓨터공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.39, no.12, 2011 , pp. 1174-1180 More about this Journal
Abstract
Field Programmable Gate Array(FPGA)s are replacing traditional integrated circuits for space applications due to their lower development cost as well as reconfigurability. However, they are very sensitive to single event upset (SEU) caused by space radiation environment. In order to mitigate the SEU, on-board computer of STSAT-3 employed a triple modular redundancy(TMR) and scrubbing scheme. Experimental results showed that upset threshold energy was improved from 10.6 MeV to 20.3 MeV when the TMR and the scrubbing were applied to the on-board computer. Combining the experimental results with the orbit simulation results, calculated bit-flip rate of on-board computer is 1.23 bit-flips/day assuming in the worst case of STSAT-3 orbit.
Keywords
STSAT-3; On-Board Computer; SEU; TMR; Scrubbing scheme;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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