| 一种甚高精度星敏感器精度测试方法 |
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| 引用本文： | 郑循江,张广军,毛晓楠.一种甚高精度星敏感器精度测试方法[J].红外与激光工程,2015,44(5):1605-1609. |
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| 作者姓名： | 郑循江 张广军 毛晓楠 |
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| 作者单位： | 1.北京航空航天大学 仪器科学与光电工程学院,北京 100191; |
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| 基金项目： | 十二五预研课题(51309040101)；飞行器海上测量与控制联合实验室开放基金 |
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| 摘 要： | 根据星敏感器的误差来源和组成,提出了对甚高精度星敏感器的瞬时误差(TE)、高频误差(HSFE)、低频误差(LSFE)三项误差的测试方法。针对星敏感器TE的测试,利用统计高精度静态光星模和基于高精度单星模拟器的星点质心定位误差的方法,得到星敏感器TE的误差;针对星敏感器HSFE的测试,利用高精度转台和单星模拟器,以微步距采集星点弥散斑在不同成像位置时的能量变化,计算星敏感器高频误差;针对星敏感器LSFE误差的测试,利用双轴转台,并且分别旋转转台的两轴,计算星敏感器星像坐标在像面上的变化来获得LSFE的误差。最后文中以某甚高精度星敏感器为例进行试验,结果表明测试方法有效。
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| 关 键 词： | 精度测试 星敏感器 误差 |
| 收稿时间： | 2014-09-15 |
A very high precision errors test method for star sensor |
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| Zheng Xunjiang,Zhang Guangjun,Mao Xiaonan.A very high precision errors test method for star sensor[J].Infrared and Laser Engineering,2015,44(5):1605-1609. |
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| Authors: | Zheng Xunjiang Zhang Guangjun Mao Xiaonan |
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| Affiliation: | 1.School of Instrument Science and Opto-electronic Engineering,Beihang University,Beijing 100191,China;2.Shanghai Aerospace Control and Engineering Institute,Shanghai 200233,China |
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| Abstract: | The errors of star sensor contain temporal error (TE), high spatial frequency error (HSFE) and low spatial frequency error (LSFE). The test methods of the TE, HSFE and LSFE for very high precision star sensor were presented in this paper. The errors of star locations obtained from star image were calculated with the high precision single star simulator. Then the statistics result of TE for the star sensor was calculated with the errors of star locations. The energy change in micro-stepping acquisition of the different star locations from the star image was tested with high precision turntable and single star simulator. The test result of HSFE was calculated with the energy change. The X direction errors and Y direction errors of the star image were calculated with two axis turntable. Then the LSFE was calculated with X direction errors and Y direction errors. Finally, the star sensor for satellite control system was tested with the test method presented in the paper. The results show the method is availability. And the method is used for the acceptance test of principle prototype of star sensor. |
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| Keywords: | precision test star sensor errors |
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