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.
| Citation:
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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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A very high precision errors test method for star sensor
- 1.
School of Instrument Science and Opto-electronic Engineering,Beihang University,Beijing 100191,China;
- 2.
Shanghai Aerospace Control and Engineering Institute,Shanghai 200233,China
- Received Date: 2014-09-15
- Rev Recd Date:
2014-10-13
- Publish Date:
2015-05-25
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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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