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http://dx.doi.org/10.5139/JKSAS.2017.45.1.54

Design of SAR Satellite Constellation Configuration for ISR Mission  

Kim, Hongrae (Department of Aerospace & Mechanical Engineering, Graduate School, Korea Aerospace University)
Song, Sua (Department of Aerospace & Mechanical Engineering, Graduate School, Korea Aerospace University)
Chang, Young-Keun (Department of Aerospace & Mechanical Engineering, Graduate School, Korea Aerospace University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.45, no.1, 2017 , pp. 54-62 More about this Journal
Abstract
For the Earth observation satellite for ISR mission, a satellite constellation can be utilized to observe a specific area periodically and ultimately increase the effectiveness of the mission. The Walker-Delta method was applied to design constellation orbits with four satellites, which could detect abnormal activities in AoI(Area of Interest). To evaluate the effectiveness of the mission, a revisiting time was selected as a key requirement. This paper presents the mission analysis process for four SAR satellites constellation as well as the result of constellation configuration design to meet the requirements. Figure of Merits analysis was performed based on algorithm developed. Finally, it was confirmed that the constellation orbit with four different orbital planes is likely to be appropriate for ISR mission.
Keywords
ISR; Satellite Constellation; FoM; SAR;
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