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논문 기본 정보

자료유형
학술저널
저자정보
Donghun Lee (Korea Advanced Institute of Science and Technology) Kyung-Min Lee (Naval Postgraduate School) Mohammed Irfan Rashed (Korea Advanced Institute of Science and Technology) Hyochoong Bang (Korea Advanced Institute of Science and Technology)
저널정보
한국항공우주학회 International Journal of Aeronautical and Space Sciences International Journal of Aeronautical and Space Sciences Volume.14 Number.3
발행연도
2013.9
수록면
282 - 295 (14page)

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초록· 키워드

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In order to communicate with a ground station, the tracking profile design problem for a directional antenna system is considered. Because the motions of the gimbal angles in the antenna system affect the image quality, the main object is to minimize the motion of the gimbal angles during the satellite’s imaging phase. For this goal, parameter optimization problems in the imaging and maneuver phases are formulated separately in the body-frame, and solved sequentially. Also, several mechanical constraints, such as the limitation of the gimbal angle and rate, are considered in the problems. The tracking profiles of the gimbal angles in the maneuver phases are designed with N-th order polynomials, to continuously connect the tracking profiles between two imaging phases. The results confirm that if the vector trace of the desired antenna-pointing vector is within the antenna’s beam-width angle, motions of the gimbal angles are not required in the corresponding imaging phase. Also, through numerical examples, it is shown that motion of the gimbal angles in the imaging phase can be minimized by the proposed design process.

목차

Abstract
1. Introduction
2. Antenna Tracking Profile
3. Problem Formulation
4. Numerical examples
5. Conclusion and Discussion
References

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