Author Affiliations
1College of Information Engineering, Eastern Liaoning University, Dandong, Liaoning 118003, China2The Third Space Optics Research Section, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, Chinashow less
Fig. 1. Schematic of dynamic target
Fig. 2. Structural diagram of measurement platform
Fig. 3. Schematic of measurement system
Fig. 4. Target motion trajectory
Fig. 5. Corresponding relation between θ and ΔA
Fig. 6. Corresponding relation between θ and ΔE
Fig. 7. Space motion coordinates of dynamic target
Fig. 8. Relationship between image plane coordinates and dynamic target coordinates
Fig. 9. Schematic of image plane rotation
Fig. 10. Static reference point trajectory at medium speed
Fig. 11. Image surface offset trajectory of static reference point at medium speed
Fig. 12. Dynamic motion trajectory at medium speed
Fig. 13. Corresponding relation between horizontal offset and coder angle
Fig. 14. Corresponding relation between vertical offset and coder angle
Target motion state | Dynamic error | 0° position | 90° position | 135° position | 180° position |
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Rotation clockwise with 3.6 (°)·s-1 | σA | 1.64″ | 2.05″ | 0.85″ | 1.17″ | σE | 2.74″ | 3.44″ | 0.78″ | 1.96″ | Rotation counterclockwise with 3.6 (°)·s-1 | σA | 1.28″ | 1.16″ | 0.78″ | 1.89″ | σE | 3.50″ | 2.92″ | 0.52″ | 2.05″ | Rotation clockwise with 12 (°)·s-1 | σA | 1.88″ | 1.74″ | 1.18″ | 1.64″ | σE | 1.01″ | 0.69″ | 0.82″ | 1.35″ | Rotation counterclockwise with 12 (°)·s-1 | σA | 1.86″ | 1.01″ | 0.46″ | 0.71″ | σE | 2.17″ | 1.56″ | 0.94″ | 1.31″ | Rotation clockwise with 72 (°)·s-1 | σA | 4.01″ | 1.55″ | 1.12″ | 3.68″ | σE | 1.49″ | 1.20″ | 1.43″ | 2.31″ | Rotation counterclockwise with 72 (°)·s-1 | σA | 1.57″ | 1.81″ | 3.19″ | 3.74″ | σE | 1.33″ | 3.90″ | 3.53″ | 1.23″ |
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Table 1. Dynamic accuracy