지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.11
- 수록면
- 1,042 - 1,048 (7page)
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초록· 키워드
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A 2-axis gimbal system is one of main disturbance sources affecting image jitter response of a satellite. The gimbal system comprises azimuth stage and elevation stage, and these pointing mechanism can be rotated by stepping motors about its azimuth and elevation axes simultaneously. Because of the complex and coupled dynamic motion of the gimbal system, its moment of inertia and structural modes can be changed according to the system configuration, and thus the gimbal system generates complicated and non-linear disturbance characteristics. In order to improve the jitter response of a spacecraft, it is an indispensable process to reduce the micro-vibration disturbance level of the antenna system. In the present research, a 2-axis gimbal system was manufactured and then its micro-vibration test was performed in terms of two types of stepping motors(2-phase and 5-phase). The test results show that the disturbance level of the gimbal system can be reduced by replacing the 2-phase stepping motor with the 5-phase one, and the average disturbance attenuation ratio is 56 % in peak level and 48 % in standard deviation level. The experimental results confirm that it is an efficient jitter reduction method to adopt a high-phase stepping motor.
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등록된 정보가 없습니다.
참고문헌 (12)
참고문헌 신청
1. [단행본] - Holst, G. C. / 1996 / CCD Arrays Cameras and Displays / SPIE Press and JCD Publishing
4. [학술대회논문] - Schmid, M. / 2009 / Extremely Compact Two-axis X-band Antenna Assembly / The 13th European Space Mechanisms and Tribology Symposium
5. [학술대회논문] - Lee, J. H. / 2011 / A Study on Efficient TPF Approximation for Low-orbit Satellites / Proceedings of the KSAS Annual Spring Conference : 1221 ~ 1224
6. [학술대회논문] - Choi, S. J. / 2009 / An Algorithm to Eliminate TPF Discontinuity for LEO Satellite / Proceedings of the KSAS Annual Spring Conference : 904 ~ 907
7. [학술대회논문] - Kim, D. K. / 2010 / Micro-vibration Test of X-band Antenna with Two-axis Gimbal System / Proceedings of the KSAS Annual Autumn Conference : 927 ~ 930
4. [학술대회논문] - Schmid, M. / 2009 / Extremely Compact Two-axis X-band Antenna Assembly / The 13th European Space Mechanisms and Tribology Symposium
5. [학술대회논문] - Lee, J. H. / 2011 / A Study on Efficient TPF Approximation for Low-orbit Satellites / Proceedings of the KSAS Annual Spring Conference : 1221 ~ 1224
6. [학술대회논문] - Choi, S. J. / 2009 / An Algorithm to Eliminate TPF Discontinuity for LEO Satellite / Proceedings of the KSAS Annual Spring Conference : 904 ~ 907
7. [학술대회논문] - Kim, D. K. / 2010 / Micro-vibration Test of X-band Antenna with Two-axis Gimbal System / Proceedings of the KSAS Annual Autumn Conference : 927 ~ 930
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