Schedule Optimization of Imaging Missions for Multiple Satellites and Ground Stations Using Genetic Algorithm

  • Junghyun Lee
  • Heewon Kim
  • Hyun Chung
  • Haedong Kim
  • Sujin Choi
  • Okchul Jung
  • Daewon Chung
  • Kwanghee Ko
Original Paper


In this paper, we propose a method that uses a genetic algorithm for the dynamic schedule optimization of imaging missions for multiple satellites and ground systems. In particular, the visibility conflicts of communication and mission operation using satellite resources (electric power and onboard memory) are integrated in sequence. Resource consumption and restoration are considered in the optimization process. Image acquisition is an essential part of satellite missions and is performed via a series of subtasks such as command uplink, image capturing, image storing, and image downlink. An objective function for optimization is designed to maximize the usability by considering the following components: user-assigned priority, resource consumption, and image-acquisition time. For the simulation, a series of hypothetical imaging missions are allocated to a multi-satellite control system comprising five satellites and three ground stations having S- and X-band antennas. To demonstrate the performance of the proposed method, simulations are performed via three operation modes: general, commercial, and tactical.


Multiple satellites Mission-control systems Imaging missions Schedule optimization Genetic algorithm 


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Copyright information

© The Korean Society for Aeronautical & Space Sciences and Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Junghyun Lee
    • 1
  • Heewon Kim
    • 2
  • Hyun Chung
    • 3
  • Haedong Kim
    • 4
  • Sujin Choi
    • 4
  • Okchul Jung
    • 4
  • Daewon Chung
    • 4
  • Kwanghee Ko
    • 5
  1. 1.Defense Agency for Technology and QualityJinjuRepublic of Korea
  2. 2.Fine Mechatronics Co., Ltd.DaeguRepublic of Korea
  3. 3.Korea Advanced Institute of Science and Technology (KAIST)DaejeonRepublic of Korea
  4. 4.Korea Aerospace Research Institute (KARI)DaejeonRepublic of Korea
  5. 5.Gwangju Institute of Science and Technology (GIST)GwangjuRepublic of Korea

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