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http://dx.doi.org/10.20910/JASE.2018.12.6.9

Optimal positioning of reaction wheel assemblies of optical observation satellite for minimizing image quality degradation  

Im, Jeong Heum (Korea Aerospace Research Institute)
Lim, Jae Hyuk (Chonbuk National University)
Kim, Kyung-Won (Korea Aerospace Research Institute)
Yoon, Hyung-Joo (Korea Aerospace Research Institute)
Kim, Sung-Hoon (Korea Aerospace Research Institute)
Publication Information
Journal of Aerospace System Engineering / v.12, no.6, 2018 , pp. 9-16 More about this Journal
Abstract
This paper describes how to find out the optimum position of the reaction wheel assembly (RWA) to minimize image quality degradation through the integrated system jitter prediction combining the micro-vibration test with finite element analysis considering optical coefficients. Micro-vibration generated from RWA that is widely used for satellite maneuver, is one of key factors that degrades the quality of satellite image. Due to varying vibration characteristics of each RWA, its accommodation position may affect image quality even though the same company manufactured them. To resolve this issue, an integrated system jitter prediction is conducted with all possible RWA accommodation location, and finally we determine optimal RWA position from the analysis results.
Keywords
Reaction Wheel Assembly; Optical Satellite; Image Quality; Jitter; Microvibration;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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