Yuanpeng Li, Jiang Guo. Directivity calibration and correction of bracket for star sensor[J]. Infrared and Laser Engineering, 2022, 51(9): 20210875
- Infrared and Laser Engineering
- Vol. 51, Issue 9, 20210875 (2022)
Fig. 1. Flow chart of precise assembly and adjustment of star sensor bracket
Fig. 2. Modeling of star sensor support coordinate system
Fig. 3. Model of interactive measurement
Fig. 4. Corresponding relationship of coordinate axis and solution state
Fig. 5. Schematic diagram of measuring point coordinates
Fig. 6. Position relationship between star sensor bracket and camera’s cube prism
Fig. 7. Schematic diagram of docking surface
Fig. 8. Actual measuring points of star sensor bracket
Fig. 9. Pointing accuracy histogram of star senstor bracket before and after correction
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Table 1. Measurement results of qx and qz
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Table 2. Relationship comparison between actual coordinate, theoretical coordinate of bracket for star sensor and camera coordinate
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Table 3. Measurement results of qx and qz after the first grinding and calibration
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Table 4. Retest result after the first grinding and calibration
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Table 5. Retest result after the second grinding and calibration
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Table 6. Comparison of deviation before and after calibration of star senstor support
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