한국항공우주학회지 (Journal of the Korean Society for Aeronautical & Space Sciences)

  • 제43권7호
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  • Pages.648-656
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  • 2015
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  • 1225-1348(pISSN)
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  • 2287-6871(eISSN)
한국항공우주학회 (The Korean Society for Aeronautical and Space Sciences)
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연속회전을 통한 능동 합성개구레이더위성 기동시간 단축 연구

A Study on Active SAR Satellite Maneuver Time Reduction through Sequential Rotation

  • 투고 : 2015.05.14
  • 심사 : 2015.06.23
  • 발행 : 2015.07.01
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초록

능동 합성개구레이더 위성의 주요기동은 SAR 안테나 방향을 바꾸기 위한 롤축 기동이다. 그리고 도플러 중심주파수 변화를 최소화하기 위하여 요축 기동이 요구된다. 따라서 토크/모멘텀 용량을 대부분 롤축으로 그 다음으로 요축으로 할당하는 것이 합리적이다. 하지만 궤도 조정 때문에 가끔씩 피치축으로 중심으로 큰 각도의 회전이 요구된다. 본 논문에서는 롤축과 요축의 연속회전을 통한 피치축 기동시간 단축 방법에 대해서 살펴본다. 이들 두 축이 피치축에 비해서 기동성능이 좋기 때문에, 피치축을 중심으로 큰 회전이 요구될 때는 기동시간 단축이 가능하다.

Active SAR satellite's main maneuver is roll axis maneuver to change SAR antenna direction. In addition, yaw steering is required to minimize the doppler centroid variation. Thus, it is resonable to assign the torque/momentum capacity mostly to roll axis and then yaw axis. In this case, the pitch axis shows low agility performance. However, due to orbit maintenance, large angle maneuver about pitch axis is sometimes required. In this paper, we study the pitch axis maneuver time reduction through sequential rotation about roll and yaw axis. Since these two axes have high agility performance than pitch axis, maneuver time reduction is possible when large angle rotation about pitch axis is required.

키워드

참고문헌

  1. Lim, B.-G., and Ahn, O.-S., "A Study on R&D Policy Implications and Future Challenges using SWOT Analysis and Technology-Trends Analysis in SAR Satellite Filed," Current Industrial and Technological Trends in Aerospace, Vol. 11, No. 1, 2013, pp. 122-141
  2. TerraSAR-X, The Germal Radar Eye in Space, Mission brochure, DLR, 2009
  3. Jeong, S.-Y., Lee, S.-Y., Bae, M.-J., and Cho, K.-D., "Configuration design of a deployable SAR antenna for space application and tool-kit development," Journal of the Korean Society for Aeronautical and Space Science, Vol. 42, No. 8, 2014, pp. 683-691 https://doi.org/10.5139/JKSAS.2014.42.8.683
  4. Lee, S.-Y., Kim, J.-H., and Yoon, J.-C., "Development of KOMPSAT-5 System," Conference of the Korean Society for Aeronautical and Space Sciences, 2012 Fall, pp. 846-850.
  5. Roth A., "Scientific Use of TerraSAR-X", Geoscience and Remote Sensing Symposium, 2004, pp. 1699-1702
  6. Oh, S.-H. Lee, S.-H., Yoon, S.-T., and Kim, J.-H., "Satellite Attitude Command Generation Minimizing the Doppler Centroid," Conference of the Korean Society for Aeronautical and Space Sciences, 2012, Spring, pp. 1059-1063.
  7. Fiedler, H. , Boerner, E., Mittermayer, J., and Krieger, G., "Total Zero Doppler Steering - A New Method for Minimizing the Doppler Centroid", IEEE Geoscience and Remote Sensing Letters, Vol. 2, No. 2, 2005, pp. 141-145 https://doi.org/10.1109/LGRS.2005.844591
  8. Bilimoria, K., and Wie, B., "Time-Optimal Three-Axis Reorientation of a Rigid Spacecraft," Journal of Guidance, Control, and Dynamics, Vol. 16, No. 3, 1993, pp. 446-452. https://doi.org/10.2514/3.21030
  9. Lee, B.-H., Lee, B.-U., Oh, H.-S., Lee, S.-H., and Rhee, S.-W., "Time Optimal Attitude Maneuver Strategies for the Agile Spacecraft with Reaction Wheels and Thrusters," Journal of Mechanical Science and Technology, Vol. 19, No. 9, 2005, pp. 1695-1705. https://doi.org/10.1007/BF02984181
  10. Bai, X., and Junkins, J. L., "New Results for Time-Optimal Three-Axis Reorientation of a Rigid Spacecraft," Journal of Guidance, Control, and Dynamics, Vol. 32, No. 4, 2009, pp. 1071-1076. https://doi.org/10.2514/1.43097
  11. Son. J.-W., Choi, H.-T., "Time Based Attitude Control of Flexible Body Satellite," Conference of the Korean Society for Aeronautical and Space Sciences, 2014 Fall

피인용 문헌

  1. Five Reaction Wheel Operation Method for Active SAR Satellite vol.44, pp.9, 2016, https://doi.org/10.5139/JKSAS.2016.44.9.806